27 Fun Valentines Day Science Activities and Experiments

Engaging with special occasions like Valentine’s Day is a great way to engage students in science concepts. There are endless possibilities of fun Valentines day science activities that you can use to teach students about the wonders of science. 

In this blog post I will share 27 Valentines day science activities and experiments that are easy to set up and engaging for kids of all ages. 

Valentines day science activities and experiments

No prep Valentines Day science activities and worksheets:

1. Digital escape room: Escape rooms are always a hit in my classroom. This Valentine’s day escape room is zero prep and its a fun way to review key concepts related to the scientific method.

2. Scientific variables worksheets: Create Valentine’s themed scenarios of experiments for students to identify the independent, dependent and controlled variables. If you want one that is done for you, download this Valentine’s Day Worksheet here.

3. Keyword summaries: Have students review content and keywords using this FREE resource. Students record everything they know about a keyword on each heart, then put it together to make a Valentines Day bauble! These look awesome hung around the classroom.

4. Heart label and color: Study the heart and cardiovascular system with this FREE label and color activity.

5. Study the cardiovascular system: Take it a step further and really delve into the cardiovascular system with these cardiovascular system stations and activities.

6. Run a “speed-dating” activity: This is one of my favorite (and easiest) educational activities to increase engagement in the classroom. Set up desks so students are opposite each other. Students have 2 minutes (1 minute each) to tell the other person everything they know about a particular topic. Once the buzzer goes, students on one side move around to the next person (like speed dating). Middle school students think this is particularly fun.

Valentines day science activities and experiments

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Valentine Science Experiments

Valentine’s Day simple science experiments can make science fun and engaging for middle and high school students. Here’s an outline of 21 easy science experiments that incorporate elements of Valentine’s Day:

1. Candy Heart Dissolving Rates:

• Investigate how different liquids (water, soda, vinegar) affect the dissolution rate of candy hearts. Students will have fun watching the fizzy hearts dissolve and predicting which liquid will dissolve them the fastest.

2. Chromatography Valentines:

• Use chromatography to separate the colors in water-soluble markers to create vibrant heart shape patterns. This could also be done to separate the colors in a heart shaped or valentines day candy.

3. Heartbeat Monitor:

• Measure heart rate before and after different activities (walking, jumping) to understand the cardiovascular system. To make it extra valentine’s day theme, have students dance to romantic music and measure heart rate before and after!

4. Balloon Rocket Race:

• Explore the principles of action and reaction by launching heart balloon rockets and timing their races.

5. Love Potion Science experiment:

• Experiment with liquids of varying densities to create a “love potions” with layered colors.

6. Magnetic Attraction:

• Investigate the magnetic properties of different materials. Use iron filings and a magnet to create magnetic valentines artworks.

7. Valentine’s Slime:

• Make slime with a twist by incorporating Valentine’s Day-themed colors and glitter.

8. pH Color Changing Flowers:

• Explore the acidity or alkalinity of different solutions by placing white flowers in them and observing color changes.

9. Heart-shaped Paper Circuit:

• Introduce basic circuitry by creating a heart-shaped paper circuit with LED lights.

10. Sweet DNA Extraction:– Extract DNA from strawberries to demonstrate the basics of genetics in a sweet way. This is my favorite valentines science experiment for high school students as they are always surprised you can actually extract the DNA from something.

Valentines day science activities and experiment

11. Lovey-Dovey Egg Drop:– Design and test egg drop containers to protect “love birds” (eggs) from falling heights.

12. Floating Hearts:– Experiment with the concept of buoyancy by creating heart-shaped boats from various materials.

13. Valentine’s Day Volcano:– Build a mini volcano using baking soda and vinegar with red food coloring for a festive eruption.

14. Candy Chromatography:– Separate the colors in different candies using chromatography to understand the composition.

15. Lava Lamp:– Create a lava lamp using alka-seltza tablets, oil and water use pink color food dye in the water to make it extra valentines themed.

16. Cupid’s Bow and Arrow Physics:– Investigate the principles of force, energy, and trajectory by making and testing Cupid’s bows and arrows.

17. Lovey-Dovey Light Reflection:– Use mirrors to explore the reflection of light and create heart-shaped patterns.

18. Heart Anatomy Model:– Construct a simple model of the human heart using everyday materials to learn about its structure.

19. Sweet Heat:– Explore how different substances affect the melting rate of chocolates in this tasty experiment.

20. Love in the Air:– Study the concept of air pressure by creating and launching paper bag “heart rockets.”

21. Secret message: This is my favorite fun valentine’s day science activity! use petroleum jelly and a UV light to create secret messages!

Note: Always follow your school’s safety protocol and complete a full risk assessment for every experiment. 

Valentines day science activities and experiments

Conclusion

Valentine’s Day lessons can be so fun and most of these only use simple supplies! 

Comment below with your favorite Valentines Day Science Activities and Experiments.

Note: Always consult your school’s specific safety guidelines and policies, and seek guidance from experienced colleagues or administrators when in doubt about safety protocols.

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