Skip to Content

8 Easy Valentine’s STEM Activities for Kids

Kids of all ages will have a great time with these Valentine’s STEM Activities. Here are 8 ways to explore science, math and engineering with young children. Even preschoolers and kindergarteners can join in on the STEM fun with these easy ideas. Which one will be your favorite?

Make today easy with the Valentine’s Day Activity Pack.

For only $10 you get 90+ pages of hands-on activities and craft templates that are perfect for math and literacy centers, fine motor skills and more. Designed for preschool and kindergarten aged children.

Take a closer look inside or get it here.

Disclosure: Adult supervision is required for all activities at all times. Some of the links provided in this blog are affiliate links. I will be paid a small commission if you use this link to make a purchase.

Valentine’s STEM Activities

1. Invisible Heart Activity

Looking for a great way to learn this Valentine’s Day? Try this invisible heart activity. It uses simple chemical reactions to make a cardiovascular system appear out of nowhere. You can also use this DIY homemade invisible ink to make secret messages  for your valentine.

2. Fizzing Heart Bombs – Valentines STEM

Fizzy heart bombs, STEM activity for kids. Toddlers and preschoolers will love this easy science experiment this Valentine's Day.

Here is a great science experiment for young children. Learn how to make hearts that fizz and bubble away. 

This is a great activity to do at home or in the classroom and all you need are a few simple supplies.

3. Free Valentine’s Pattern Printable

Pattern recognition is one of the early math skills that young kids need to learn. These heart pattern cards are a free printable where you need to find which heart completes the pattern. Perfect for your preschool math centers.

4. Valentines Roll and Graph

Valentine's Day roll and graph activity for kids. This printable math activity is perfect for preschool and kindergarten classrooms.

Get your class learning with some printable math activities. This Valentine’s roll and graph activity is a great addition to your math centers. It’ll introduce your kids to measuring, data collection and data analysis. All in one simple game.

5. Free Valentines Addition Worksheet

Looking for a fun way to explore your Valentine’s day theme? This hearts addition worksheet is a free printable for kids. Grab your copy and use it in your classroom today.

6. Valentines Sort By Size

Valentine's sort by size activity. A fun math printable for toddlers and preschoolers. Perfect for math centers in class or at home.

Sort the pictures into small, medium and big with this Valentine’s sort by size printable activity. This is a fun activity for preschool and kindergarteners who love hands-on learning.

7. Valentine’s Candy Structure Building

Who can make the tallest tower using candy hearts and toothpicks? If you’re having a Valentine’s day party and are looking for some fun STEM challenges, then look no further. This is a great engineering activity for kids of all ages.

Photo: Little Bins for Little Hands

8. Light-Up Circuit Valentines

This is the perfect opportunity to get your middle school aged kids involved with some awesome Valentine’s Day STEM activities. Make a valentine that will actually light up. Read the step-by-step instructions and make this February epic.

Photo: Left Brain Craft Brain

Are you going to try any of these Valentine’s STEM activities for kids?
Don’t forget to pin the idea for later.


Valentine’s Day Activity Pack

Over 90+ pages of Valentine’s day themed play based learning activities and craft templates. Perfect for preschool and kindergarten.