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I’m excited to share ten Valentine’s Day science experiments and STEM activities. Read on for some hands-on learning and fun!

10 Valentine's Day science experiments and STEM activities for hands on learning in February!

STEM activities and projects are engaging lessons with Science, Technology, Engineering, and Mathematics. The following STEM activities are a great way to take a break from your regular routine and dig into some hands-on learning.

In this post you’ll find 10 great Valentine’s Day STEM projects including:

  • 3 chemistry based Valentine’s Day science experiments
  • 2 Valentine’s Day technology projects
  • 3 Valentine’s Day engineering challenges
  • 2 Valentine’s Day math activities

Valentine’s Day Science

Get messy with these fun, hands-on Valentine’s Day science chemistry experiments!

Will You Be My Valen-Slime?
Skip to my Lou brings us a great idea for hands-on experimentation with polymers. Create this fun, pink slime to play with yourself, and share the slimy love with friends with a printable jar topper.

Dancing Conversation Hearts
No Valentine’s Day is complete without tiny conversations hearts! They taste horrible, so what do you do with them? Playdough to Plato gives us a new twist on the dancing object experiment with these bubbling, jumping hearts.

Valentine’s Day Hydrogen Peroxide Yeast Experiment
Little Bins for Little Hands brings us a very cool chemistry experiment. Create an exothermic reaction (and learn what that means) with these simple instructions and kitchen ingredients.

Find more Valentine’s Day slime activities on this post.

Valentine’s Day Technology Projects

Valentine Binary Coding Bracelets
Schooling a Monkey has a great idea for sending love notes to the ones you love. Try binary coding your messages. This would be great as a group project. Create a code and deliver it to a friend. Can they decipher the meaning?

Squishy Circuits Heart
Another fantastic idea from Schooling a Monkey! Build a squishy heart circuit for Valentine’s Day. Great hands-on practice with technology and electricity!

Valentine’s Day Engineering Challenges

If you’re looking for a little more clean fun, check out these great STEM challenges just in time for Valentine’s Day!

Valentine Tower
A simple challenge to get your kids thinking like mini-engineers. Preschool Powol Packets shows us how to create a STEM stacking and design challenge with Valentine’s Day cups.

Conversation Heart Catapults
Catapults are always a huge it in our house! The STEM Laboratory shares directions for a craft stick catapult that will really get your conversation hearts flying!

Valentine’s Day Heart Marshmallow Toothpick Structures
Buggy and Buddy bring us a simple and fun engineering challenge featuring heart shaped marshmallows for Valentine’s Day. Your kids will love this open-ended challenge. See what they create!

Find fun Valentine’s games on this post.

Valentine’s Day Math Activities

Heart Shape Math Puzzle
Kids STEAM Lab shares a fun activity to incorporate art and math into your Valentine celebration. The challenge is to build a heart of out 20 triangles. Free printable, math vocabulary, and instructions are all included on the post.

Candy Heart Graphing
Who knew there were so many uses for candy hearts? Check out this free printable to help you child practice graphing with candy hearts from The Kindergarten Connection.

More Valentine’s Day from the Resource Room:


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