On Valentine’s Day, most parents of schoolchildren are frantically searching the stores for classroom valentines. I’m a bit of a sucker for any sort of pun, but since we love STEM so much in this house, we are particular fans of all of these Valentines STEM activities. But if you’ve forgotten to pick up a set, hate the idea of spending money on something kids are just going to throw away as soon as they get home, or want a more creative class Valentine theme, then you’ll love these Chemistry valentines for kids.

Best of all, these chemistry valentines are kid-friendly. Some of the Valentine chemistry puns I came across and thought of when making these valentines for kids weren’t really child or school appropriate.
It’s probably not just me, but I always think it’s a little weird when kid valentines are mushy. Kid valentines should promote friendship, especially when you have to give one to every kid in the class!
Imagine telling 20 people they are your soulmate.
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Printable Chemistry Valentines for Kids
Anyway… on to the Chemistry Valentines!
Now, here’s the secret to printing in color.
Most home printers (unless they are photo printers) don’t do great when printing whole color pages.

So, if you want a professional look, use a photo printer or take your PDF file to a print shop.
But, if you don’t want to do that, if you use a glossier paper, the colors should come out better.
Alternatively to that, use cardstock for stability and color clarity.
Valentine Classroom Decorations
Add some Valentine’s Day festivities and flair to your classroom with these classroom decorations for Valentine’s Day!
Valentine’s Day Door Decorating Kit
Tissue Paper Classroom Valentine’s Door Decorations
Valentine’s Day Classroom Window Clings
Valentine Letters Classroom Door Decorations
Valentine’s Day Classroom Decorating Kit
Our Class is Sweet Cupcake Valentine’s Day Classroom Decorating Kit
Our Love for Learning Grows and Grows Classroom Decorations
A Class Full of Sweethearts Classroom Decorations for Valentine’s Day
What You Need for Your Valentine Printables
Shop this handy list before printing your chemistry valentines so your valentines come out perfectly!
Printable and Worksheet Essentials for the Classroom
Here are some essentials for printing out and using worksheets and other paper resources in the classroom.
Inkjet Printer (we love the Brother Brand)
Print a lot of papers? Get $10 your HP Instant Ink order when you use this link.
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.
Exploding Candy Lab Science Kit
Chemistreats Classroom Candy Science Kits
Lollipop Lab Candy Science Kit
Valentine Building Block Bears
LEGO Friends Flower and Chocolate Kit
LEGO Pop up Valentine Card with Swans
More Valentines for Kids
Looking for other printable valentines ideas? These valentines are adorable and so creative!
Printable LEGO Valentines for Aspiring Engineers!
Printable STEM Valentines for Kids
Magic Erupting Color Reveal Science Valentines for Kids
Squishy-Themed Valentines for Kids
Valentine Science Books and More!
These fun Valentine’s Day Books for kids will teach kids about the science around Valentine’s Day, the history of the holiday, and a whole lot more!
The Calendar Kids Meet February Book
In My Heart a Book of Feelings
I Love You Around the World Valentine Coloring Book
Candy Bites the Science of Sweets
Celebrate Valentine’s Day Holidays Around the World
Build Valentine’s Day Fun with LEGO
How to Use Your Printable Chemistry Valentines
You’ll use the button in this post to grab your free chemistry valentines. Then you can save the file to your computer and print at your leisure.

Once the valentines are printed (I definitely recommend printing on cardstock paper), cut them out and let your child write their name on the back of the valentine.
If you’re feeling extra ambitious, go ahead and tape a piece of candy or a small toy to the valentines.
Drop them in your child’s backpack and you’re done!
Definitely easier than a trip to the store fighting all the other last-minute Valentine shoppers (save that for your significant other).
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
I Love You Sign Language Teacher Shirt
Kindness Teacher Valentines Day Shirt
Wood Heart Earrings for Valentine’s Day
Teaching Sweethearts Valentine’s Day Teacher Shirt
My Class is Full of Sweethearts Teacher Valentine’s Day Shirt
Tie Dye Heart Shirt for Teachers
Love All Day Every Day Teacher Valentine’s Day Shirt
Painted Heart Valentine’s Day Shirt for Teachers
Heart Fractions Math Teacher Valentine’s Day Shirt
Penguin Heart Teacher Earrings
Valentine Alphabet Teacher Shirt
Heart Envelope Valentine Earrings
ASL Sign Language Love Valentine ASL Teacher Shirt
All We Need is Love Globe Shirt
Valentine Elements Chemistry Teacher Shirt
Valentine SPED Teacher Inclusion Valentine’s Day Teaching Shirt
Teaching Valentine Conversation Hearts Shirt for Valentine’s Day
This Teacher Loves Her Students Valentine’s Day Shirt
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.