7 ways to celebrate women’s history month in the classroom

7 ways to celebrate women’s history month in the classroom

7 ways to celebrate women’s history month in the classroom

March is Women’s History Month, a time to celebrate the contributions and accomplishments of women throughout history. As a teacher, you may be wondering how you can incorporate Women’s History Month in the classroom. But I also know that at this time of year you may also feel snowed under with your normal lesson preparation and don’t have the energy to prepare new lessons ??‍♀️

Fortunately, there are many ways to celebrate Women’s History Month in middle school! In this blog post, we will explore some ideas for how you can celebrate Women’s History Month in the classroom and make it a meaningful and educational experience for your students.

women's history month in the classroom
Disclaimer: This blog post, ‘7 ways to celebrate Women’s History Month in the Classroom’, may contain affiliate links. Read full disclaimer here. station activities in the classroom

7 ways to celebrate Women’s History Month in the Classroom

 

1. Highlight Female contributions in your subject area

One of the best ways to celebrate Women’s History Month in the classroom is to highlight the contributions of females in your subject area. You can do this by creating a bulletin board or display in your classroom featuring famous or well-known females in the subject. You could also assign your students research projects on these women, or have them give presentations on the work of one particular woman.

For example, in science, some women you could highlight include:

  • Marie Curie, who won Nobel Prizes in both physics and chemistry for her work on radioactivity.
  • Rosalind Franklin, who made significant contributions to the discovery of the structure of DNA.
  • Jane Goodall, who is known for her ground-breaking research on chimpanzees and animal behavior.
  • Barbara McClintock, who won a Nobel Prize for her work on the genetic structure of corn.
  • Mae Jemison, who became the first African American woman to travel to space in 1992.

By highlighting these and other female scientists, you can help your students understand that science is not just a field for men, but one that is open to anyone with a passion for discovery and learning.

 

2. Explore Gender Bias 

Another way to celebrate Women’s History Month in the classroom is to explore the issue of gender bias. You can do this by having your students read articles or watch videos about the experiences of female’s in a relevant field, or by inviting a female working in the field to speak to your class about her experiences.

Some questions you could discuss with your students include:

  • Have women historically faced barriers to entering and advancing in ____________?
  • Are there still gender biases in ____________ today?
  • What can we do to ensure that women have equal opportunities in ____________?

By exploring these questions, you can help your students develop a deeper understanding of the challenges faced by female’s in various industries, and how they can help promote equality and diversity.

3. Conduct hands on activities

A fun way to celebrate Women’s History Month in the classroom is to conduct hands-on activities that are inspired by the work of key females. For example, you could have your students build a model of DNA based on the work of Rosalind Franklin, or create a simple electromagnet based on the work of Marie Curie.

Other activities you could consider include:

  • Building a model of a chimpanzee habitat inspired by Jane Goodall’s research.
  • Growing corn plants and observing their genetic structure, based on the work of Barbara McClintock.
  • Conducting experiments on the effects of microgravity on plant growth and development, inspired by Mae Jemison’s work in space.

By conducting these STEM and hands-on activities, you can help your students develop a deeper appreciation for the work of female scientists and the impact they have had on our understanding of the world around us.

 

4. Host a guest speaker

Consider inviting a female working or studying in your subject area to speak to your students. This could be a local scientist, a college professor, or a female who works for a government agency, a law firm or art museum. Hearing from a woman who has succeeded in a field of interest can be a powerful motivator for your students. You could also have a Q&A session after the talk to give your students an opportunity to ask questions and learn more about the female’s work in that area.

Women’s History Month in the classroom 

5. Read Biographies or books

Another way to celebrate Women’s History Month in the classroom is to assign your students biographies of females to read. 

After reading these books, you could have your students write book reports or give presentations on the lives and work of these females. By doing so, you can help your students develop a deeper understanding of the personal and professional challenges faced by women in that occupation, and the ways in which these women faced them.

There are also many great books about women that you can read with your students that may be easier to digest than biographies. 

For example:

History: The Greatest Women in History: The Remarkable Women Who Changed Our World

Designers: Women made: Great Women Designers

Mathematics: Women in Mathematics: The Addition of Difference (Race, Gender, and Science)

Mathematics: Power in numbers: the rebel women of mathematics

Science: Headstrong: 52 Women Who Changed Science and the World

Science: Women in Science: 50 Fearless Pioneers Who Changed the World

 

6. Watch documentaries or films that celebrate women in various occupations or fields 

From YouTube to Netflix and everything in-between, there are a lot of resources available to show documentaries or films to your students. Often it is also easy to find ready-made film studies or questions to go with the documentaries.

As a science teacher here are some of my favorites:

  • Women in motion (2021)
  • Picture a Scientist (2020) 
  • Jane (2017)
  • Hidden Figures (2016)
  • Code girl (2015)
  • Mission Blue (2014)

 

7. Encourage girls to pursue options related to that subject area

One of the most important things you can do to celebrate Women’s History Month in the classroom is to encourage girls to pursue their dreams and careers in whatever area they are interested in. Girls are often discouraged from pursuing certain careers such as in science or mathematics related fields, which is why it’s so important to provide them with positive role models and encourage them to pursue their interests. 

Women’s History Month in the classroom

Conclusion

Do you celebrate Women’s History Month in the classroom?

If you do I’d love for you to share how you celebrate Women’s History Month in the classroom below in the comments.

Don’t forget to visit my store to pick up some ready made station activities!

Women’s History Month in the classroom

Easy lunch ideas for teachers

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8 FREE Back to school resources for science teachers

8 FREE Back to school resources for science teachers

8 FREE Back to school resources for science teachers

So, you’re headed back to school, and the anxiety starts to creep in… there is so much to do, new students to get to know, an element of the unknown and the stress of trying to get back into a routine after being able to relax over the summer. 

Let me help you!

This post includes 8 FREE back to school resources for science teachers! These resources will save you time and money and help you feel organised as you start the school year. 

FREE back to school resources for science teachers

Disclaimer: This blog post, ‘FREE back to school resources for science teachers’, may contain affiliate links. This means I may receive a small commission on qualifying purchases. This is of no extra cost to you and it helps me to continue writing awesome content for you! Read full disclaimer here.

FREE back to school resources

for science teachers

  1. Meet the teacher template

I love to introduce myself to my students and also their parents using this editable template. It is important to start the year off with a positive first impression while also outlining expectations for the year. This also ensures your first encounter with parents is a positive one that you have orchestrated. Just this simple page either sent or emailed home is a great way to engage with parents and present what you want them to know about you.

meet the teacher handout template
  1. Lesson Introduction Slides

Lesson Introduction Slides is a great way to build routine in your classroom and ensure important information is communicated to students. Using an attractive template like these will bring an extra element of design to your classroom that students will notice. 

 

  1. All about me in science bunting 

Helping your students have a sense of ownership over the lab is important. Not only will it help them feel safe, but it also helps with them keeping the room tidy and cleaning up after experiments.

This ‘All about me in Science’ bunting is a great way to get to know your students, decorate your classroom, and help students feel that they belong there. 

FREE back to school resources

lesson intro slides free
all about me science bunting
  1.  Science Variables Posters

Ah those pesky variables! Why is it so hard to get these to stick in students’ heads?!

I’ve found having a visual aid to refer to regularly in class to be invaluable. These Science Variables Posters are perfect for adding to your classroom while also adding to your lab decor! I like to print them in A3 size. FR

If you like these variables posters you may also like my 21 lab safety posters for your lab too! 

FREE back to school resources for science teachers

science variables posters free
  1. Science experimental report templates

Planning science experiments and having students write experimental reports can be a painstakingly slow process. Help scaffold this for students with these scientific report templates. 

  1. Note-taking template for students

I love using note-taking templates like these for when I’m doing a mini-lecture, watching a video, or doing information station activities. There are multiple templates included so students can choose one that makes sense to them and how their brain works! 

  1. Lesson finishers

Got 5 minutes at the end of the lesson and don’t know what to do?

These lesson finishers are excellent! Either have the whole class do them or just early finishers. There are plenty to choose from so you are never left short-handed. 

FREE back to school resources 

  1. Back-to-school checklist

Have you checked out this back-to-school checklist? It contains helpful things to do before school starts back, things to purchase and things to brush up on prior to your return. 

Conclusion

I hope these FREE back to school resources for science teachers help make your first weeks easier as you return to school!

Which one is your favorite FREEBIE? Please comment below!

Check out my other back to school resources here including lab safety posters, lab equipment escape room, lab safety contract and lesson.

FREE back to school resources

Best back to school checklist for teachers 2022

Easy lunch ideas for teachers

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Christmas Science Activities – 3 easy last minute ideas

Christmas Science Activities – 3 easy last minute ideas

Christmas Science Activities – 3 easy last minute ideas

Christmas is such a fun time to celebrate. But heading towards the end of the year, it can be tough to keep students engaged in the classroom. Even harder because we are also ready to wind down for the Christmas break!

But don’t worry! I’ve got your back.

Here are 3 of my favourite last minute Christmas Science Activities for less than $5!

Christmas science activities blog

Disclaimer: This blog post, ‘Christmas Science Activities – 3 easy last minute ideas’, may contain affiliate links. This means I may receive a small commission on qualifying purchases. This is of no extra cost to you and it helps me to continue writing awesome content for you! Read full disclaimer here.New Science Teacher Advice

Christmas Science Activities for

Middle School

1. Christmas “chemis-tree” Bauble 

These chemis-tree baubles are perfect for helping students summarise their learning and understanding. While I like to call them ‘chemis-tree’ baubles, you can actually use the same concept for any topic or subject.

All you have to do is have students cut some circles, write down a key word on each circle and fill it with everything they know about that key word. 

Then, students fold them all in half and glue them together to make the bauble.

If you want one specifically for the periodic table then follow this link. 

Or sign up to my email list below to get my FREE template you can use for any subject or topic. 

Christmas bauble activity

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    2. Digital escape rooms

    Digital escape rooms are my absolute favorite resource to use in my class. They are engaging for students and promote problem-solving skills, critical thinking, and collaboration. They are also no-prep for you as they are self-marked and also come with a full set of teacher answers in case students need help along the way. 

    Here are some great digital escape rooms for middle school science that you can use regardless of what topic you are up to:

    Christmas Science Activities Digital Escape Rooms

    See my other digital escape rooms here.

    What is needed to access the digital escape room?

    Students just need access to a device with internet access. While the escape room uses a Google Form, students are not required to sign in so they don’t need an account to play. It is designed to be zero prep for you – just share the link with students and away they go!

    What does the digital escape room consist of?

    The activity contains a set of tasks students must complete in order to ‘escape’.

    Answers are entered into a Google Form (provided). The task cards are included digitally within the Google Form, but a pdf version of the task cards and answers is also included for you.

    Why use science digital escape rooms?

    1. It is zero prep! Just share the link with students and away they go!
    2. It is a fun and engaging way for students to review content.
    3. It builds student skills in problem-solving, critical thinking, and collaboration.
    4. It can be used in a wide range of environments including in the classroom, online learning, homeschooling, and distance education.
    5. It is self-marking.
    6. Full teacher answers included.

    3. Two-player racing quiz

    2-player racing games are an awesome way to engage students and revise content and key terms. You can build them yourself in Google sheets or purchase them for a few dollars.

    This bundle includes 3 racing games on the scientific method and branches of science in Christmas themes including reindeers, snowmen and gingerbread men.

    Christmas Science Activities

    meet the teacher handout template

    Why use Christmas Science Activities 2-player race games?

    1. They are zero prep! Just share the link with students and away they go!

    2. They are self-marking which means no marking for you and immediate feedback for students.

    3. They are fun and engaging for students.

    4. They can be used in many environments, including in the classroom, online learning, homeschooling, and distance education.

    5. Full teacher answers included.

     

    What is needed to access the science Christmas activity 2-player game?

    Students need access to a device with internet access and a Google account (students can get a Google account for free).  The 2-player game uses a Google Sheet, so it will ask students to log in to save the activity to their Google Drive.

     

    What does this science Christmas activity bundle consist of?

    The activity contains 3 different 2-player games in Thanksgiving themes.

    1. Reindeer – This includes key terms and vocabulary related to the Scientific Method
    2. Snowman –  This includes key terms and vocabulary related to the Scientific Method (note: these are different terms to the Reindeer quiz)
    3. Gingerbread man – This includes the branches of science and the titles of job roles in scientific fields

    Each game contains a set of definitions or descriptions and students must fill in the key term for each one. Each correct answer (in any order) will move their image upwards. The player who answers all questions correctly first and gets their thanksgiving character to the top, wins. 

    Christmas Science Activities

     Conclusion

    Preparing middle school Christmas Science Activities doesn’t have to be an onerous task. Just grab one of the above resources and watch your students engage and have fun this Christmas!

    Christmas Science Activities 

    Comments

    7 awesome science lab decoration ideas on a budget

    7 awesome science lab decoration ideas on a budget

    7 awesome science lab decoration ideas on a budget

    As we head towards a new teaching year (for those in the States) or another term (for me in Australia), thinking about science lab decoration can bring on some anxiety as you think about how much money it is going to cost you. As a beginning teacher, I made the mistake of thinking I had to buy a lot of things to make my lab look awesome. Over the years, however, I have learned how to be creative in my use of resources in order to decorate the science lab without costing me too much money.

    Grab a coffee and relax while I share my 7 top science lab decoration ideas on a budget!

    science lab decoration ideas

    Disclaimer: This blog post, ‘7 awesome science lab decoration ideas on a budget’, may contain affiliate links. This means I may receive a small commission on qualifying purchases. This is of no extra cost to you and it helps me to continue writing awesome content for you! Read full disclaimer here.

    7 science lab decoration ideas on a budget

    1. Have students create artwork

    You don’t have to spend a fortune to make displays or add colour to the walls.

    Having students create pieces that also act as science lab decorations not only brightens the room, but also allows students to have a sense of ownership over the room. 

    Some ideas are:

        • Lab safety rules posters
        • Hanging mobiles 
        • Subject-specific posters e.g. animal adaptations
        • Famous scientists posters
        • Get to know me bunting (freebie below)
        • Models e.g. solar system, animal vs plant cells.

    2. Utilize freebies

    There are actually a lot of great free resources available for science lab decorations. It is worth doing a search for free posters and displays on sites such as teachers pay teachers.

    Here are a couple of freebies from me:

    This activity is great to start the year and get to know your class. Plus it adds to your science lab decorations as DIY bunting! 

    Variables are always a tricky topic that students often get confused. These posters are perfect for reminding students all year round about the different types of variables.

    And here are some awesome science lab decoration freebies from some of my teacher-author friends:

    3. Use decorations that will be used every year

    For example, if you decorate your classroom with lab safety posters like these cute ones, then these will be used all year every year and are a great investment for only a few dollars. While I don’t usually like to laminate products because they will outlive both me and the students, Idid make an exception for my lab safety posters as I use them all year every year. 

    In the same way, investing in some great glass markers means you can draw on the windows and make new displays as much as you want to! 

    Wood wallpaper or any wallpaper to fit your classroom theme is also a good investment as it can change the whole vibe of a instantly for minimal investment.

    4. Utilize the resources your school has

    Many school teachers have access to school supplies that can be used in creative ways as science lab decorations. Here are some of my favourite uses for common school supplies:

    1. Coloured paper and string can be used to make cute bunting
    2. A3 paper can be used to print large posters and images
    3. Butchers paper can be used for students to create posters for the walls
    4. Science equipment and specimens can be brought together for an awesome display
    5. Display student models or projects from previous years
    science variables posters free
    lab safety rules posters
    science back to school bundle

    5. Bring items from home

    If you take a look around your home you might have some things that you want to get rid of that would actually make a nice addition to your classroom!

    Think potted plants, cushions, fairy lights or photo frames you could put science pictures in.

    Some things to think about when bringing in items from home:

    i) be prepared that they might get stolen, lost, or ruined 

    ii) if they require electricity ensure they meet safety standards

    iii) if used in the lab make sure displays are far enough away from lab benches where chemicals or fire will be used. 

    science lab decoration display

    6. Ask about teacher discounts 

    Local craft stores sometimes have a discount for teachers. It is always worth asking before purchasing. Some of my favourite places to grab a discount are:

    7. Visit the local dollar store

    Don’t underestimate the difference some coloured streamers and backdrops can do for your lab. The party aisle has heaps of goodies for decorating a classroom! My favourite hack is using disposable coloured table cloths for bulletin boards. They are cheap, large and you can get them in almost any colour.

    Conclusion

    Science lab decoration ideas do not have to be expensive. Students will appreciate the effort and will enjoy being involved. 

    What is your favourite science lab decoration hack? Please comment below!

    I’d also love to hear if you try any of these in your classroom!

    Best science lab decoration ideas on a budget

    Comments

    5 best TED talks for SCIENCE teachers

    5 best TED talks for SCIENCE teachers

    5 best TED talks for SCIENCE teachers

    I love TED talks because they are inspirational, interesting, and I always learn something new. As a science teacher, I love TED talks that incorporate science into their presentation in one way or another. The following are my 5 favorite TED talks for science teachers.

    So grab a coffee, sit back and enjoy these 5 best TED talks for science teachers!

    best TED talks for science teachers

    Disclaimer: This blog post, ‘5 best TED talks for science teachers’, may contain affiliate links. This means I may receive a small commission on qualifying purchases. This is of no extra cost to you and it helps me to continue writing awesome content for you! Read full disclaimer here.

    5 Best TED talks for Science Teachers

    1. Science is for everyone, kids included

    This video is a must-watch for all teachers (science or not!).

    Neuroscientist Beau Lotto is a very engaging presenter and even more so when you learn what he has helped students achieve in the world of science.

    He sought to challenge the concept that science cannot be done at an academic level by kids. And by golly did he challenge this.

    Beau set about giving students the option to ‘play’ in science and design their own ‘game’ experiment.

    The results are incredible.

    And who better to share the stage with him than one of these 12-year-old students, Amy O’Toole.

    Best TED talks for science teachers in 2022

    2. How dirt bikes and STEM ignite ingenuity in Baltimore

    You may think this is a strange one for me to include here. But you won’t regret watching it.

    Brittany Young’s story and passion for making a difference in her community are inspiring to say the least.

    She has created incredible programs that introduce students to STEM concepts within a context they actually understand and that will benefit them long-term.

    If you’re a science teacher wanting to make a difference, this talk will help you put any perceived limitations behind you.

    This is the epitome of what we all want to achieve as teachers – making a real difference in the lives of our students.

    3. Online learning could change academia for good

    Ok, so I might be biased on this one since I love using Tyler DeWitt’s Chemistry videos for my own learning and that of my students.

    In his TED talk, Tyler addresses the need for structures in education to change as the world we live in changes.

    He opens up about his journey into video creation and how he is able to impact the learning of students from all over the world. 

    What an amazing world we live in where good education is so accessible by so many!

    4. Yup, I built a nuclear fusion reactor

    Taylor Wilson is not shy in sharing his incredible achievement of building his own nuclear fusion reactor… in his garage… when he was 14!!

    Yep, you read that correctly.

    This kid (can we even call him that?!) is on another level. Any words I put here won’t do justice to what this young man has achieved already.

    Don’t believe me? He even has proof he presented it to President Obama.

    5. Psychedelic science

    Swiss artist and photographer Fabian Oefner has created the most incredible pieces of art by using scientific phenomena.

    Apart from being visually engaging, his talk is fascinating as he explores ideas such as ‘making sound visible’ through his pieces.

    Words cannot describe the beauty of his artwork and anyone interested in science would be blown away by this TED talk.

    Grab your free lesson planning (Google Doc) template here

    Conclusion

    There are many TED talks out there, but these are definitely my favorite TED talks for science teachers. 

    Which one is your favorite? Have you got another I haven’t listed? 

    Comment below to let me know!

    Best TED talks for science teachers

    Comments

    Modelling Equilibrium and Le Chatelier’s Principle: 6 Best Activities

    Modelling Equilibrium and Le Chatelier’s Principle: 6 Best Activities

    Modelling Equilibrium and Le Chatelier’s Principle: 6 Best Activities

    Are you looking for fun ways to engage students while modelling equilibrium and Le Chatelier’s principle in Chemistry? These concepts can be difficult as students struggle to grasp what is happening at a molecular level. In this blog post I am going to give you my favourite ways to model and demonstrate visual examples of equilibrium reactions and Le Chatelier’s principle that will keep your students engaged and help them deepen their understanding.

    So grab a coffee and sit back and relax while I help you prepare some awesome lessons!

    modelling equilibrium and Le Chatelier's principle

    Disclaimer: This blog post contains affiliate links. This means I may receive a small commission on qualifying purchases. This is of no extra cost to you and it helps me to continue writing awesome content for you! Read full disclaimer here

    Equilibrium reactions

    Equilibrium reactions can form when reversible reactions are performed in a closed system. A system has reached dynamic equilibrium when the rate of the forward and reverse reactions are the same. At this point we will observe no signs of a chemical reaction including no colour change, odour or new substances formed. 

    Le Chatelier’s principle states that when an equilibrium system is disturbed, the system will work in order to restore equilibrium by shifting to minimise the applied stress. A system can be disturbed by changing the temperature, pressure or concentration. 

    Modelling equilibrium & Le Chatelier’s principle 

    (suitable for homeschooling, distance education and online learning)

    If you’re trying to teach chemistry online or by distance then these activities are perfect as they are hands-on and only require normal household materials. I used these activities during covid lockdown and online learning so I know they work!

    The following 3 models demonstrate a change in concentration on an equilibrium system.

    1. Modelling equilibrium and Le Chatelier’s principle using food dye and water

    Using food dye and water is a great way for students to visualise the formation of a dynamic equilibrium. Start with two large containers (or beakers) and label one as reactants and the other as products. In the lab using beakers is great as it is easy to measure the amount of reactants and products being transferred each ‘round’. At home you could use small measuring cups or measuring jugs. 

    If you prefer to watch a video then the following video will demonstrate the model I am about to explain. 

    Method overview 

    Fill each of the containers with the same amount of water and colour each with different colours of food dye. Only add a couple of drops of food dye as you want to be able to observe the colour changes which is easier when they aren’t too dark. Also make sure you use colours that are easy to see a colour change. I like red and blue to make purple, but blue and yellow to make green would also work well.

    Then choose two smaller containers of different sizes. Choose one that will represent the rate of the forward reaction, and the other will represent the rate of the reverse reaction.  

    Each round you are going to fill the ‘forward’ container with the reactants and then tip it into the products container. Then fill the ‘reverse’ container with the products and tip it into the reactants container. Repeat the rounds until you feel you have observed equilibrium – that is, when the rate of the forward and reverse reaction are equal. You can check this by measuring the liquid or just by sight. This is also a good opportunity to discuss observations about the colour of the system and limitations of the model.

    Other alternatives to try:

    • Starting with different amounts of reactants and products:
      • More reactants than products
      • More products than reactants
      • All reactants and no products (just a drop of food colouring)
    • Changing the size of containers for the reactants and products:
      • Same size
      • Reactants larger
      • Products larger 
    • Disturb the equilibrium by adding more reactant in and repeating.

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      2. Modelling formation of equilibrium using chocolate

      If you’re looking for peak engagement in the classroom then look no further than the chocolate aisle! This activity will help students understand equilibrium reactions and also help them to demonstrate an equilibrium reaction on a graph. 

      NOTE: Be careful with food allergies and ensure you follow your school’s protocols for food in the classroom. If you are unable to use chocolate or lollies for this activity, counters or paper is a good alternative.

      hand drawn graph of equilibrium from modelling activity

      Get a student friendly printable version here 

      Method overview

      For this activity fold an A4 piece of paper in half and write reactants on one side and products on the other. 

      Count out 60 m&ms and place them all on the reactants side of the paper. Decide on a rate for the forward and reverse reactions. For example, the rate of the forward reaction as 0.25 and the reverse reaction as 0.5. For each round transfer the amount of m&ms from one side to the other. So, round #1 you would transfer a quarter of the reactant m&ms to the product side. Since there are currently no products, none would be transferred back to the reactants.

      Round #2 you would again transfer a quarter of the reactant m&ms and a half of the product m&ms back again. Repeat rounds until you reach equilibrium (where the number of m&ms being transferred each time is equal).

      Have students graph their results by using a different coloured pen for the reactants and products. Help them to identify on their graph where equilibrium was established. 

      Other alternatives to try:

      • Starting with different amounts of reactants and products:
        • Same amounts of reactants and products
        • More reactants than products
        • More products than reactants
      • Changing the ‘rate’ of the forward and reverse reactions:
        • Same rate (same ratio of m&ms transferred each time e.g. 0.5 for both)
        • Reactants faster rate

      3. Modelling equilibrium and Le Chatelier’s principle using chocolate

      This is my favourite one! I have found that students struggle most when trying to interpret graphs that show multiple disturbances to equilibrium. This activity is a great introduction to these as it helps them to create their own graph that depicts a disturbance that they initiated. 

      Get a student friendly printable version here 

      Method overview

      Start using the exact same activity as above until equilibrium has been established and remained constant for three rounds. Then count out another 20 m&ms. Add these to the reactants side of the page. 

      Note: When recording the number of reactants and products for each round ensure the addition of the extra m&ms is added to the last round so that on the graph a vertical line would be drawn. 

      Students continue with the same rate of reaction as before and continue until a new equilibrium is reached. 

      Other alternatives to try:

      • Adding different numbers of m&ms for the disturbance
      • Adding m&ms to the product side
      • Removing m&ms from the reactant side
      • Removing m&ms from the product side
      Resource: Equilibrium Le Chateliers Principle Bundle
      Resource: Module 5 Equilibrium Australian Curriculum

      Modelling equilibrium & Le Chatelier’s principle experiments

      (suitable for in a laboratory)

      Chemistry is a difficult subject to teach as it involves understanding what happens at a molecular level. This is often difficult as we are asking students to understand what they cannot see. 

      These experiments assist students in developing their understanding by allowing them to observe disturbances in equilibrium and the formation of a new equilibrium. 

      If you are teaching online or don’t have access to a laboratory then check out my video here! In this video I demonstrate each of the following reactions so students can observe them.

      Disclaimer: You are responsible for following your own school’s laboratory safety rules and guidelines including which chemicals your students are able to use in the classroom. You may decide to use these as demonstrations. The Animated Teacher is not responsible for any outcome or injury acquired from doing these experiments. 

      4. Shifting equilibrium by changing temperature: Nitrogen dioxide to dinitrogen tetroxide

      Nitrogen dioxide gas forms an equilibrium in a closed system with dinitrogen tetroxide. The nitrogen dioxide molecules react to form dinitrogen tetroxide at the same rate that the dinitrogen tetroxide decomposes into nitrogen dioxide. 

      Nitrogen dioxide is a brown gas while the dinitrogen tetroxide is a colourless gas. When equilibrium is established the system will be a light brown colour due to the combination of both molecules being present. The differing colours in the gases make them excellent for modelling equilibrium and Le Chatelier’s principle as we can see the colour change throughout the process. 

      To make the nitrogen dioxide gas, add concentrated nitric acid to pieces of copper metal in a conical flask. Collect the gas in 3 sealable tubes of the same size. NOTE: make sure this is done in a fume cupboard as nitrogen dioxide gas is highly toxic when inhaled.

      In this demonstration we can stress the system by changing the temperature of the vessel and therefore observe a shift in equilibrium. We can do this by adding one of the tubes to a hot water bath, one to a cold water bath, and keeping one at room temperature for comparison.

      Since this reaction is exothermic, if we add heat to the system we would expect the equilibrium to shift to the left, away from the heat and towards the nitrogen dioxide. Therefore, we expect the colour of the system to darken with more of the brown gas (NO2) being produced. If we remove heat from the system we expect the equilibrium to shift to the right and produce more dinitrogen tetroxide. Therefore we expect a lightening of the brown gas as more of the colourless gas is produced. 

      picture of 3 tubes comparing nitrogen dioxide equilibrium

      Another alternative is using the reaction between cobalt chloride with hydrochloric acid. This reaction also allows for a clear example of modelling equilibrium and Le Chatelier’s principle due to the varying colours of the reactants and products.

      Similarly to above, by putting the system in a hot water bath and a cold water bath, a colour change will be observed showing the shifting of equilibrium.

      5. Shifting equilibrium by changing pressure: Nitrogen dioxide to dinitrogen tetroxide

      Using the same method as above create nitrogen dioxide and collect in a syringe. Seal the end really well with blutac. NOTE: This experiment should also be performed in a fume cupboard.

      2NO2(g) ⇋ N2O4(g)

      syringe filled with nitrogen dioxide gas equilibrium

      Once the system has reached equilibrium increase the pressure on the system by compressing the syringe. Leave for a few minutes to allow for the system to reach equilibrium again. 

      With an increase in pressure, the system will shift to the side with less moles of gas. In this instance, to the right. Since it shifts to create more dinitrogen tetroxide, the colour should decrease. 

      Then decrease the pressure on the system by increasing the volume of the syringe. Again leave for a few minutes for the system to reach equilibrium again. 

      With a decrease in pressure, the system will shift to the side with more moles of gas in order to counteract the stress. Therefore, in this system, it will shift to the left to create more nitrogen dioxide. Hence, you should expect to see an increase in the brown colour as nitrogen dioxide is a brown gas.

      6. Shifting equilibrium by changing concentration: Traffic Light Equilibrium Experiment

      This is my all time favourite experiment for modelling equilibrium and Le Chatelier’s principle! 

      Method overview

      Dissolve 5g of glucose in a little bit of hot water. Then add 10mL of sodium hydroxide to the glucose solution. 

      Next, in a clean flask, dissolve a few granules of indigo carmine indicator in hot water. The solution should be a deep blue. Note: add the indicator gradually – if you add too much it will be too dark to see the colour changes clearly. 

      Now add the glucose solution to the indigo carmine flask. Seal and leave for a few minutes to establish equilibrium.

       

      Now it’s time to disturb it! Shake the flask! This causes more oxygen to dissolve into the solution and oxidise the indigo carmine. The more it is shaken the more oxidised the indicator becomes. If you then leave it to settle you will see the colours change back as equilibrium is established again. 

      Conclusion

      Modelling equilibrium and Le Chatelier’s principle is so worthwhile in helping students really understand the concepts. Using fun activities that involve chocolate is always a win! 

      Have you tried any of these? Let me know how it went in the comments below!

       

      Visit my store to access my resources related to Le Chatelier’s principle here

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