If you can’t get enough of themed STEM activities for kids, and you’re looking for a great way to bring STEM into your fun Valentine’s Day activities, then you’re in the right place! Here you will find over 50 Valentines STEM activities for preschoolers through middle school.
STEM activities for kids are always going to be one of my favorite parts about school programs and bonus brainbuilder activities.
Young kids and older kids alike can increase their skill levels in subject areas like problem solving, the design process, fine motor skills, critical thinking, math skills, the scientific method and a whole lot more all while having a great time when they try these Valentine’s STEM activities.
Valentines STEM Activities for Elementary and Beyond
Kids from 3-15 will love trying these Valentines STEM activities in the classroom, in their STEM centers, or at home with caregivers. In this list of STEM activities for Valentine’s Day, you’ll find activities divided by focus (Science, Technology, Engineering, or Math) as well as Valentine STEM activities divided into age groups.
Here you’ll find Valentine activities for preschool, elementary school, and middle school for kids aged 3-15.
Where to Find Low Cost Materials for Fun Valentine STEM Activities
I like to use recycled materials a lot in my STEM lessons. I find that kids of all ages love trying educational activities that allow them to experiment with STEM in activities like building challenges, a design challenge, building the tallest tower, and making different shapes from different materials.
So I keep a “STEM Fun” cabinet filled with recycled materials, low-cost craft supplies like pipe cleaners, invisible ink, red cups, candy hearts, jelly beans, beads, and a few simple science supplies that you can find at your local dollar store.
Check out this list of supplies for science experiments for what I recommend to put in a STEM supply box.
You can also shop the following components to have your STEM supplies mailed directly to your door.
February STEM Challenge STEAM Package
If you want enough hands-on Valentine’s Day STEM activities to last the entire month of February, check out the February STEAM Lesson Plan Bundle.
You’ll get bonus worksheets and lesson plans to go along with each fun STEM challenge, including step-by-step instructions, a recording sheet to track each Valentine’s Day STEM activity, and worksheets that make a great addition to your STEM lesson plans.
More Valentine’s Day Educational Activities to Try!
Here are some other fun educational activities for Valentine’s Day that you can use in the classroom, in after-school programs, or at home to bring the holiday into your literacy centers and beyond!
- Printable STEM Valentines for Kids
- 14 Creative Valentines Day Slime Recipes Kids Love!
- Printable LEGO Valentines for Aspiring Engineers!
- Printable Punny Chemistry Valentines for Kids
- Ingenious School Valentines Ideas For Classmates
- Try making this light-up circuit valentine
50+ Awesome Valentine’s Day STEM Activities
The following low prep STEM challenges include some of our favorite science activities, slime recipes, Valentine’s Day engineering activities, math center activities, and more!
These provide the perfect opportunity to try easy Valentine’s Day activity ideas that provide the perfect bridge between a Valentine’s Day theme and traditional STEM lesson plans.
Valentine’s Day Hands-On Science Experiments
What do you think of when you think about a Valentine’s Day science experiment?
Candy science? a lesson on non-Newtonian fluids? Magic milk?
Whatever you think of, you’ll find a fun experiment in this list that uses simple supplies and teaches science concepts like states of matter, chemistry, the scientific method, and many others that will stick with your students the entire year.
Magic color reveal science Valentines These color-reveal Valentines are a fun way to add a science twist to a Valentine’s Day party.
Learn about the human body when you make this DIY heart model and learn how the human heart works.
The Valentine Heart chromatography experiment with markers is a fun activity that shows that different colors have different densities.
A great activity that kids ask for year after year is this Valentine’s Day slime. Learn how to make glitter slime right here.
This Valentine’s Day oobleck activity is a lesson in non-Newtonian fluids. Get the non-Newtonian fluid recipe here.
Making crystals is a super fun science activity, and these salt crystal hearts are so much fun during the Valentine season.
Make this festive Valentine’s Day lava lamp and learn about chemical reactions!
If you don’t want to make a lava lamp, try making fizzing hearts reactions to learn about the same chemistry concept.
You can also learn what is a chemical reaction for kids this Valentine’s Day!
And check out this fun list of Valentine candy science experiments.
Technology Activities for Valentine’s Day
Bring technology into the classroom with these Valentine technology activities.
Learn how to make your very own light-up Squishy Circuits heart.
If you have a coding caterpillar, you can learn all about what is caterpillar coding in these fun Valentine’s Day themed challenges. is a lot of fun to try!
You can express your sentiments safely and create secret messages when you write them in the binary alphabet code with these Valentine coding bracelets!
Learn about magnetic forces when you make this Valentine discovery bottle.
And find a list of all of our favorite Valentine’s Day coding activities for kids right here!
Valentine’s Day Engineering Challenges
Engineering is a lot more fun when it’s love themed! Try these Valentines STEM activities that little engineers will adore. Many of these activities use LEGO bricks, which I’m sure you use in a lot of STEM projects already.
Here you can learn how to build a LEGO heart the easy way!
Create your own love bugs and design how they would work in this love bug craft engineering challenge.
Build your own LEGO Valentines– it’s harder than you think!
These LEGO Hearts are a fun way to bring engineering into the Valentine’s Day holiday.
Design a homemade bouncy ball and give it to friends and classmates this Valentine’s Day!
Conversation Heart Structures are a fun way to bring design and engineering into the Valentine classroom.
Find even more Valentine engineering challenges in this list!
Hands-On Valentine’s Day Math Activities
Add some STEM elements and seasonal fun to your math center with these math activities for Valentine’s Day.
Learn about factors and Venn diagrams with the Conversation heart Venn Diagram Factors activity.
Bring math into the kitchen with these Valentine Candy Recipes: Heart Lollipops.
Use conversation hearts as math pieces with these fun Valentine’s Day math activities
Younger kids will love using pattern blocks to create hearts in the Valentine Pattern Block Heart challenge.
Valentine STEM Activities by Grade
Here are my favorite Valentine’s Day STEM activities for grades from preschool through middle school!
Valentine’s Day STEM Lessons for Ages 3-5
Preschoolers and kindergarten kids will have tons of fun with these simple Valentine STEM activities.
If you are teaching kindergarten, then you’ll want this list of Valentine’s Day STEM activities for kindergarten.
Valentine’s Day STEM Lessons for Ages 6-12
Kids in first through fifth grade will have tons of fun with these STEM activity ideas for Valentine’s Day.
Teachers of 4th graders, check out this list of Valentines STEM activities for 4th grade.
Valentine’s Day STEM Lessons for Ages 12-15
Here you’ll find our favorite Valentine STEM activities for middle schoolers.
Grab these Valentine STEM Activities for Middle School and reactivate your middle school students’ interest in STEM.
These Valentine’s Day Science Activities for Middle School will make everyday science lessons easier.
Valentine's Day STEM Activities for Kids
Valentine's Day is a great opportunity to incorporate STEM (Science, Technology, Engineering, and Math) activities into your celebrations. These activities can help children of all ages develop problem-solving skills, critical thinking, and creativity while having fun. Whether you're a teacher, parent, or caregiver, here are some Valentine's Day STEM activities that you can try with kids from preschool through middle school.
Low-Cost Materials for Valentine's Day STEM Activities
When it comes to STEM activities, you don't need expensive materials. In fact, you can use recycled materials and low-cost craft supplies to create engaging and educational experiences for kids. Some examples of materials you can use include pipe cleaners, red cups, candy hearts, jelly beans, beads, and simple science supplies that can be found at your local dollar store. By keeping a "STEM Fun" cabinet filled with these materials, you can easily access them whenever you want to try out a STEM activity [[9]].
February STEM Challenge STEAM Package
If you're looking for a comprehensive set of Valentine's Day STEM activities, you might consider the February STEAM Lesson Plan Bundle. This package includes hands-on activities, worksheets, and lesson plans that cover a range of STEM challenges. It provides step-by-step instructions, recording sheets to track each activity, and worksheets that can be integrated into your existing STEM lesson plans. This package is a great resource for teachers and parents who want to engage children in STEM learning throughout the month of February [[10]].
Valentine's Day Hands-On Science Experiments
Valentine's Day is a perfect opportunity to explore science concepts through hands-on experiments. Here are a few examples of science experiments that you can try:
- Magic Color Reveal Science Valentines: These color-reveal Valentines add a fun twist to a Valentine's Day party. Kids can learn about chemical reactions and color mixing while creating their own unique Valentines [[13]].
- DIY Heart Model: By making a DIY heart model, kids can learn about the human body and how the heart works. This activity provides a hands-on way to explore anatomy and physiology [[14]].
- Valentine Heart Chromatography: This experiment uses markers to demonstrate that different colors have different densities. It's a simple and fun way to introduce chromatography and color separation to kids [[15]].
- Valentine's Day Slime: Making slime is always a hit with kids, and this Valentine's Day slime recipe adds a festive twist. Kids can learn about chemical reactions and the properties of non-Newtonian fluids while having fun with slime [[16]].
- Salt Crystal Hearts: Creating salt crystal hearts is a fun and visually appealing science activity. Kids can learn about crystal formation and the science behind it while making beautiful heart-shaped crystals [[17]].
Technology Activities for Valentine's Day
Technology can also be incorporated into Valentine's Day activities. Here are a few examples:
- Light-Up Squishy Circuits Heart: Kids can learn about circuits and electricity by creating their own light-up Squishy Circuits heart. This activity combines art, technology, and engineering [[21]].
- Caterpillar Coding: If you have a coding caterpillar toy, you can use it to teach kids about coding concepts in a Valentine's Day-themed challenge. This activity introduces kids to the basics of coding in a fun and interactive way [[22]].
- Binary Alphabet Code: Kids can learn about binary code by creating Valentine coding bracelets. This activity allows them to express their sentiments in a secret message using the binary alphabet code [[23]].
- Valentine Discovery Bottle: By making a Valentine discovery bottle, kids can explore magnetic forces and learn about magnetism. This activity provides a hands-on way to understand the principles of magnetism [[24]].
Valentine's Day Engineering Challenges
Engineering challenges can be a great way to engage kids in hands-on learning. Here are a few Valentine's Day engineering activities:
- LEGO Heart: Kids can learn about engineering and geometry by building a LEGO heart. This activity encourages creativity and problem-solving skills [[27]].
- Love Bug Craft Engineering Challenge: In this challenge, kids can design and build their own love bugs. They will explore engineering concepts such as stability, balance, and movement while creating their unique love bug designs [[28]].
- LEGO Valentines: Building LEGO Valentines is a fun way to combine engineering and creativity. Kids can design and construct their own Valentine-themed structures using LEGO bricks [[29]].
- Homemade Bouncy Ball: Kids can design and create their own homemade bouncy balls using simple materials. This activity allows them to explore elasticity, material properties, and the engineering design process [[30]].
- Conversation Heart Structures: Kids can use conversation hearts to build structures and explore engineering principles such as stability and load-bearing capacity. This activity encourages creativity and problem-solving skills [[31]].
Valentine's Day Math Activities
Math can be integrated into Valentine's Day activities to make learning more engaging. Here are a few math activities for Valentine's Day:
- Conversation Heart Venn Diagram Factors: Kids can use conversation hearts to explore factors and Venn diagrams. This activity helps them understand mathematical concepts while having fun with Valentine's Day-themed materials [[34]].
- Valentine Candy Recipes: Heart Lollipops: Kids can learn about fractions, measurement, and following recipes by making heart-shaped lollipops using Valentine candy. This activity combines math and cooking [[35]].
- Valentine's Day Math Activities: Various math activities can be done using conversation hearts, such as sorting, graphing, and counting. These activities help develop math skills while incorporating Valentine's Day themes [[36]].
Valentine's Day STEM Activities by Grade
Here are some Valentine's Day STEM activities categorized by grade level:
- Preschool: Simple STEM activities for preschoolers that are engaging and age-appropriate [[37]].
- Kindergarten: STEM activities specifically designed for kindergarten students [[38]].
- Elementary School: STEM activities suitable for kids in first through fifth grade [[39]].
- Middle School: STEM activities for middle school students to spark their interest in STEM subjects [[40]].
These Valentine's Day STEM activities provide a range of opportunities for kids to explore and learn while celebrating the holiday. Whether you're a teacher, parent, or caregiver, you can choose activities that are suitable for the age group you're working with and create a fun and educational experience for children.
