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How to Make a 3D DIY Heart Model- Easy Step-by-Step Directions!

Celebrate the scientific side of Valentine’s Day with this 3D DIY heart model that kids can build from modeling clay! You’ll never look at hearts the same way again. This year, we’re building a complete them around Valentine’s Day STEM activities. We loving bringing the holidays into our STEM activities because the kids get a big kick out of it. Our first Valentine STEM activity was making a DIY heart model from modeling clay.

Celebrate the scientific side of Valentine's Day with this 3D DIY heart model that kids can build from modeling clay! You'll never look at hearts the same way again!

I’d always wanted to try making  a 3D heart model, but it turns out, hearts are complicated!

How to Make a DIY 3D Heart Model

The heart is made up of four chambers and valves that work together to pump oxygen throughout the body. Kids will be fascinated to see how their heart actually looks and will have fun molding their own realistic heart model from clay.

What you’ll need for the 3D heart model project:

This simple DIY 3D heart model is a fun way to learn about the different parts of the heart. With a good diagram or heart model and some clay, you can make your very own life sized DIY heart model!

We used modeling clay to make our heart so we could re-use it again, but if you wanted to make this from oven-bake clay on a smaller scale, they would make adorable non-candy Valentines for friends and classmates!

ALEX Toys Artist Studio 24 Modeling ClaysALEX Toys Artist Studio 24 Modeling ClayseBoot 11 Pcs Wooden Handle Clay Pottery Sculpting ToolseBoot 11 Pcs Wooden Handle Clay Pottery Sculpting ToolsAnatomy of the Heart Anatomical ChartAnatomy of the Heart Anatomical ChartWalter Products B10405AN Human Heart Model, Life Size, 2 PartsWalter Products B10405AN Human Heart Model, Life Size, 2 Parts

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

3D Heart Model STEM Integration

Science: Study the parts of the heart and learn their names.

Technology: Talk about the different technologies used to keep hearts safe and healthy.

Engineering: Experiment with building a 3D heart model that can actually pump liquid.

Math: Calculate the heart rate of each student and figure out the average class heart rate.

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

More Valentine Activities 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

The Calendar Kids Meet February Book

valentines day math workbook

Valentines Day Math Workbook

in my heart a book of feelings

In My Heart a Book of Feelings

i love you around the world coloring kit

I Love You Around the World Valentine Coloring Book

valentine activity book

Valentine Activity Book

candy bites the science of sweets book

Candy Bites the Science of Sweets

holidays around the world valentines day

Celebrate Valentine’s Day Holidays Around the World

valentines day coloring book for kids

Valentine’s Day Coloring Book

hear your heart science book for kids

Hear Your Heart Science Book

cadiology for kids book

Cardiology for Kids Book

valentines day riddles book

Valentine’s Day Riddle Book

lego valentines day fun

Build Valentine’s Day Fun with LEGO

How to Make an Easy Human Heart Model with Clay

Celebrate the scientific side of Valentine's Day with this 3D DIY heart model that kids can build from modeling clay! You'll never look at hearts the same way again!

Monkey started to make the heart model based off of our diagram. I found this diagram in an article about IVC filters.

I picked this diagram because it showed all the parts of the heart color-coded for arteries and veins.

Celebrate the scientific side of Valentine's Day with this 3D DIY heart model that kids can build from modeling clay! You'll never look at hearts the same way again!

Monkey used her hands and the clay shaping tools to create each part of the heart model, then I helped her stick them all together. Hearts have a lot of parts!

valentine stem challenges

We talked about each part and what it did while we constructed our heart model.

Celebrate the scientific side of Valentine's Day with this 3D DIY heart model that kids can build from modeling clay! You'll never look at hearts the same way again!

Our modeling clay is covered in glitter because Bo thought it would be a good idea to dump an entire bottle of glitter onto our modeling clay.

So from now on, all our STEM and science projects will be super jazzy and sparkly.

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.

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