Valentine’s Day Science Activities

Looking for a fun, educational Valentine’s Day activity to do with your kids?

I am here to help! These Valentine’s day science activities for kids are perfect for homeschoolers and parents who want to make learning fun. Plus, the activities are themed around hearts – so they’re perfect for the holiday!

See this list of Valentine’s Day Activities for Kids for more fun and engaging ideas for kids to do on Valentine’s day.

Your kids will have a blast with these activities – and they’ll learn something too! From fizzy hearts to slime to dissolving candy, I’ve got a variety of different experiments that will keep everyone entertained.

Check out the list now to find the perfect science activity for your child this Valentine’s Day.

Valentine's Day Science Activities

Recommended Valentine’s Day Books

Bring more excitement to the season with these Valentine’s books for kids. You will love these great stories about hearts, love, and Valentine’s Day.

Day It Rained HeartsDay It Rained HeartsThe Biggest Valentine EverThe Biggest Valentine EverTurkey's Valentine Surprise (Turkey Trouble Book 6)Turkey’s Valentine Surprise (Turkey Trouble Book 6)There Was an Old Lady Who Swallowed a Rose!There Was an Old Lady Who Swallowed a Rose!A Crankenstein ValentineA Crankenstein ValentineLove, EscargotLove, Escargot


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Valentine’s Day Science Activities

Valentine’s Day Slime Recipe

Kids will love making this Valentine’s day slime for them to play with or as a gift for someone.

Fizzy Heart Science Experiment

Fizzy STEM activities are always a hit! This is a great way to introduce a simple science experiment with the kids and have them be a part of the process.

Heart Jelly bean structure STEM Challenge

Talk about a great way to use up some of that Valentine’s Day candy while pairing it with a bit of learning, too. The kids will have a blast with this and maybe even snack a bit along the way.

Dancing Hearts Experiment

Show the kids some “magic” with this fun experiment using conservation hearts. While most times these get eaten and gobbled up quickly in our house, the kids do love saving a few for this fun activity.

Growing Gummy Hearts Experiment

How big can they grow? This is what this experiment is all about! Have the kids tell you what they think is going to happen and then have them document what really happens. This is a fun way to introduce them to a hypothesis.

Dissolving Candy Hearts Experiment

A great way to introduce chemistry to kids in a simple way. They can learn valuable lessons about solubility while watching what happens when you combine water and water mixtures with candy hearts.

Red Heart Slime Recipe

If you have multiple children, you definitely need more slime recipes.

Fizzy Frozen Hearts Experiment

Kids are always excited if they know that there will be a fizzy or bubbling reaction. Try this and let them learn more about chemical reactions.

Heart Magic Milk Experiment

This experiment is very simple yet kids will always be amazed at the chemical reaction. They really may think it’s magic.

Valentine STEM Activities

If your kids love STEM activities, you must try these Valentine STEM Activities packed with exciting science experiments, slime recipes, engineering a structure challenge, and more!

Candy Heart Science Experiments

Are you looking for a fun activity that involves candy hearts or conversation hearts? Look no further than these candy heart Science experiments!

Valentine's Day Science Activities

Recommended Valentine’s Day Activity Kits

Valentine’s Day Color by Addition Worksheets

Practice addition skills up to 20 with these fun Valentine’s day color by number addition worksheets. A fun way to add math to your school day without boring math worksheets. Instead, figure out what picture will unfold after you color in each space.

Hearts Potion Making Sensory Kit for Kids

Grab this potion making sensory kit and have a great science experiment this Valentine’s day.

More Valentine’s Day Science Activities

Valentine’s day Slime Sensory play by Mama Papa Bubba

Another great idea for a slimy sensory play and looks pretty cool too.

How to Make Salt Crystal Hearts by STEAMsational

Heart crystals are so much fun to make! Once the kids get started, they’re going to love how they turn out! These are fun to make and keep and display, too!

Dissolving Skittles or M&Ms Experiment by Red Ted Art

If you have skittles or M&Ms, you can try this simple activity.

Blow up a Balloon with Alka Seltzer – Valentine Version by Science Sparks

Your little one will love this super easy science experiment. They will love the drawing part too!

More Valentine’s Day Activities

Valentine Books for Preschool

Looking for some good reads about Valentine’s day? These heart-filled books about love and friendship are perfect for your little one!

Kindergarten Valentine’s Day Books

Check out this Valentine’s Day-themed reading list for Kindergarteners! Great choices for early readers!

Valentine’s Treasure Dig

Simple Valentine Heart Toddler Activity

One More or Less Heart Clip Cards

Valentine’s Day Multiplication Puzzles

Valentine’s Day oobleck Recipe by Steam Powered Family

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