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Valentine’s Day STEM Activities for Kindergarten

It’s Valentine’s season! That means hearts, pink, candy, and Valentines STEM activities (if you’re visiting STEAMsational, that is). Today we’re all about kindergarten. Here you’ll find a list of our favorite Valentine’s Day STEM activities for kindergarten. Choose a few to do this February in the classroom or at home!

Here you'll find a list of our favorite Valentine's Day STEM activities for kindergarten. Choose a few to do this February with your kindergarten class!

Looking for a kindergarten STEM activity with a Valentine’s Day twist? Try these fun Valentine’s Day STEM activities for kindergarten.

Valentine’s Day STEM Activities for Kindergarten

It’s super fun to bring seasonal holidays into the kindergarten science classroom. All of the activities on this list are appropriate for kindergarten and have been tested by kindergartners.

In this list of Valentine’s Day STEM activities for kindergarten, you’ll find STEM activities about hearts, candy, coding activities, engineering challenges, building challenges, science experiments, math challenges, and more, all with fun Valentine’s Day colors and themes.

Classroom-Friendly Valentine Shirts

I love wearing fun Valentine-themed shirts in the classroom during February. Here are a few of my favorite Valentine Shirts for Teachers.

be kind valentine teacher shirt

Be Kind Valentine Teacher Shirt

i love you sign language shirt valentines day

I Love You Sign Language Teacher Shirt

kindness teacher valentine day shirt

Kindness Teacher Valentines Day Shirt

heart teacher valentine earrings

Wood Heart Earrings for Valentine’s Day

teaching sweethearts valentine teacher shirt

Teaching Sweethearts Valentine’s Day Teacher Shirt

my class is full of sweethearts teacher shirt

My Class is Full of Sweethearts Teacher Valentine’s Day Shirt

heart tie dye shirt valentines day teacher shirt

Tie Dye Heart Shirt for Teachers

love all day every day teacher shirt

Love All Day Every Day Teacher Valentine’s Day Shirt

painted heart valentines day shirt

Painted Heart Valentine’s Day Shirt for Teachers

heart fraction math teacher shirt

Heart Fractions Math Teacher Valentine’s Day Shirt

heart penguin earrings for teachers

Penguin Heart Teacher Earrings

valentine alphabet teacher shirt

Valentine Alphabet Teacher Shirt

valentine note earrings for teachers

Heart Envelope Valentine Earrings

love sign language teacher shirt

ASL Sign Language Love Valentine ASL Teacher Shirt

all we need is love teacher shirt globe

All We Need is Love Globe Shirt

valentine kittens teacher shirt

Valentines Cats T Shirt

chemistry valentines teacher shirt science teacher

Valentine Elements Chemistry Teacher Shirt

sped valentine inclusioin shirt

Valentine SPED Teacher Inclusion Valentine’s Day Teaching Shirt

teacher conversation hearts shirt

Teaching Valentine Conversation Hearts Shirt for Valentine’s Day

this teacher loves her kids valentine shirt

This Teacher Loves Her Students Valentine’s Day Shirt

dinosaur love teacher shirt valentines day

Valentine Dinosaur Love Valentine’s Day Shirt for Teachers

Wearing a fun shirt, decorating the classroom with red and pink decorations, and doing other fun Valentine’s Day activities will make Valentine’s Day about more than just cardboard Valentines and candy.

What is STEM in Kindergarten?

A STEM activity is similar to an expanded science experiment. STEM activities look for ways to bring science, technology, engineering, math (and sometimes art or design) into the science classroom.

Children need to learn how all of these subjects work together to make the field of “science” that is part of our world. Using Valentine’s Day STEM activities for kindergarten makes it even more fun!

valentine stem challenges

In kindergarten, STEM doesn’t focus as much on the technical side of science but instead provides a framework for intelligent and organized exploration of the world.

A kindergartener can learn to ask a question before starting a science investigation. They can learn about the tools that they can use to conduct the experiment.

They can learn about measuring and counting with a scientific lens. And they can learn that all science investigations should have order and follow procedure.

This is the goal of kindergarten STEM activities.

Additionally, kindergarten STEM activities (particularly during Valentine’s Day!) are all about exploring the world and having fun with science!

If you want more Valentine’s Day STEM, check out our list of Valentines STEM activities.

Supplies for Kindergarten STEM Activities

Here are some supplies you may want to have before completing any Valentine kindergarten STEM activities.

Teaching Resources for Valentine’s Day

Here are some fun STEM teaching resources for Valentine’s Day that you can use in the classroom.

Browse the entire category of Valentine’s Day classroom supplies here or grab some of my Valentine’s Day favorites from the list below.

valentine build a bot

Love Bot Science Bots

learning resources pumping heart model

Pumping Heart Model

edible candy food science chemistry kit

Candy Chemistry Science Lab

yumology sweets lab candy science

Yumology Candy Science Kit

glowing candy lab science kit

Glowing Candy Lab Science Kit

exploding candy lab science kit

Exploding Candy Lab Science Kit

chemistreats classroom science valentine gifts

Chemistreats Classroom Candy Science Kits

lolipop lab science kit

Lollipop Lab Candy Science Kit

candy vending machine stem kit

Candy Vending Machine

candy perfume lab science kit

Candy Perfume Science Lab

lego roses

LEGO Roses

plasma heart

Plasma Heart

cross section heart model

Cross Section Heart Model

lego flower bouquet

LEGO Flower Bouquet

lego valentine heart bear

LEGO Valentine Heart Bear

cute valentine building block bears

Valentine Building Block Bears

valentine teddy bear kit

Valentine Bear Building Kit

clockwork heart building kit

Clockwork Heart Building Kit

lego friends flower and chocolate box

LEGO Friends Flower and Chocolate Kit

valentine lego card swans

LEGO Pop up Valentine Card with Swans

lego love birds

LEGO Love Bird Building Set

building brick lego candy shop

Building Brick Candy Shop

lego valentine wreath

LEGO Valentine Wreath

The Complete List of Valentine’s Day STEM Activities for Kindergarten

In February, the first half of the month is all about hearts, love, and Valentine’s Day!

Bring some of that seasonal fun into the kindergarten science classroom with these Valentine’s Day STEM activities for kindergarten.

In Valentines Day Math use conversation hearts as counters!

Kids can learn what colors are hiding in their markers with this fun Heart Marker Chromatography project. Use non-primary colors for the best results.

Valentine Classroom Decorations

Add some Valentine’s Day festivities and flair to your classroom with these classroom decorations for Valentine’s Day!

valentine vibes classroom door decoration

Valentine’s Day Door Decorating Kit

love letter garland decoration

Love Letter Garland

valentines day classroom door tissue paper door decoration

Tissue Paper Classroom Valentine’s Door Decorations

valentines day window clings for classroom

Valentine’s Day Classroom Window Clings

happy valentines day classroom door decorating kit

Valentine Letters Classroom Door Decorations

valentine party classroom decor kit

Valentine’s Day Classroom Decorating Kit

our class is sweet classroom decorations

Our Class is Sweet Cupcake Valentine’s Day Classroom Decorating Kit

our love for learning grows classroom decoration

Our Love for Learning Grows and Grows Classroom Decorations

a class full of sweethearts valentines day decorating kit

A Class Full of Sweethearts Classroom Decorations for Valentine’s Day

Valentine Glitter Slime is made due to chemical bonding between different molecules. Kindergarten kids can learn a little about the science while making their own pink glitter glue slime.

Did you know you can use conversation hearts to make an easy oobleck recipe? This conversation heart non-Newtonian fluid is both a science lesson and offers sensory fun.

Make a lava lamp with a Valentine’s Day twist! Kindergarten kids will love repeating this Lava Lamp Science Experiment over and over.

Classroom Valentines from Teachers to Kids

Your students will love any of these creative classroom valentines for kids from their teacher!

printable valentines for kids tea party

Printable Tea Pun Valentines that Kids Will Love

If you want the best non-candy valentine for kids, look no further than these zoo printable valentines for kids! Kids will love these punny valentines that include a toy zoo animal with every valentine.

Zoo You Want to Be My Valentine Zoo Printable Valentines

If you need a creative and boy-friendly valentine, these army men printable valentines are the perfect non-candy valentines for your son's classroom! #valentinesday #printablevalentines #valentines #kidsvalentines

Army Men Printable Valentines for Kids

stem valentines for kids

Printable STEM Valentines for Kids

kid friendly valentines for classmates

Ingenious School Valentines Ideas For Classmates

STEM valentines celebrate the science side of Valentine's Day! These printable STEM valentines are the perfect class valentine for scence-loving kiddos.

Magic Erupting Color Reveal Science Valentines for Kids

chemistry valentines puns

Printable Punny Chemistry Valentines for Kids

Love Valentine's Day? You'll love these adorable printable heart non-candy LEGO valentines perfect for classroom parties or just for fun!

Printable LEGO Valentines for Aspiring Engineers!

fidget transformers valentines gift

Fidget Transformers

invisible ink classroom valentines

Invisible Ink Classroom Valentines

classroom valentine building kits

Classroom Valentine Food Building Valentines

parachute classroom valentines

Parachute Classroom Valentines

valentine build a bot

Valentine Love Bot Valentines

science volcano valenitnes

Classroom Valentines Erupting Volcano Science

valentine stem robot kit

Classroom STEM Robot Building Kit

classroom fuse bead valentines

Classroom Fuse Bead Valentines

maze classroom valentines

Maze Classroom Valentines

paper airplane classroom valentines

Paper Plane Classroom Valentines

valentine stem kit for classroom

Classroom Valentine STEM Kits

flower building classroom valentines

Flower Building Classroom Valentines

valentines day appliance building blocks for classroom

Valentines Day Appliance Building Block Valentines

building animal classroom valentines

Animal Building Classroom Valentines

Kindergarten kids love fizzing and bubbling science experiments. These heart-shaped baking soda blocks are a fun way to teach Valentines Day baking soda science to kids.

A coding caterpillar is one of the first coding tools that kids can use alone. Show kids how they can program the caterpillar to land on heart pads made from paper in this Valentine’s Day Caterpillar Coding challenge.

Tell someone you love them in binary with secret message Coding Bracelets! Kindergartners will love stringing these binary-coded bracelets and handing them out to friends.

Kindergarten kids can learn about magnets with this fun Valentine Discovery Bottle.

Nothing is more fun than building a love bug for Valentine’s Day! This Love Bug craft is a fun mixture of open-ended craft and engineering challenges for kindergarten kids.

See what structures you can make using conversation hearts as building materials. You may be surprised at how elaborate some of the kindergarten Conversation Heart structures are!

kindergarten valentines stem

Can you make a heart using pattern blocks? This Pattern Block Hearts activity is a fun engineering and geometry challenge for kindergarten kids.

Learn about chemical reactions, dissolving, and mixtures in this fun Dancing Candy Heart experiment.

valentine stem challenges

What are your favorite STEM activities for Valentine’s Day? We’d love to see your STEM activities in action!

My Favorite STEM Products for the Preschool Classroom

These STEM products are perfect for the preschool STEM classroom!


Homer Technology App for Kids 4-6

mel science microscope kit

Mel Science Classroom STEM Kits

classroom balance buckets

Classroom Balance Buckets

classroom sorting set

Primary Sorting Classroom Bundle

color cubes

Transparent Color Cubes

clixo rainbow pack

Clixo Rainbow Classroom Pack

pet homes stem challenge kit 938 pc 14268695

Pet Home STEM Challenge

mirrored stacking stem

Stacking Mirror Blocks

guidecraft magnification blocks13844710

Magnification Blocks

mystery ball stem preschool

Gravity Physics Tubes

preschool investigation specimins

Specimen Viewers Classroom Set

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