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in Seasonal STEAM· STEM Activities· Valentine's Day STEM Activities

Squishy Circuits Light-Up Heart STEM Activity

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Kids will love this fun Valentine’s Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine’s Day with hands on STEM activities!

Valentine’s Day is all about love, candy, and puns, but you can also make Valentine’s Day about electricity and circuits! Make a light-up heart engineering activity for kids and make your love connection electrifying!

This activity is one of our favorite technology activities for kids!

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Related: 14+ Valentine’s STEM Activity Ideas!

Light-Up Valentine STEM Activity

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Disclaimer: This post contains affiliate links at no cost to you for your convenience. 

You don’t have to be an electrical engineer to help kids learn the basics of circuits. Who knew play dough could be so educational for kids of all ages?

valentine stem challenge cards

What you’ll need to make a Squishy Circuits Heart:

  • Squishy Circuits kit
  • Conductive white dough (we made glitter dough, but you can also use play dough)
  • Insulating red dough (we used modeling clay)

Before starting our project, I used the Squishy Circuits conductive dough recipe to make white dough. I added glitter for fun. When the dough cooled, it was ready to use to build circuits!

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Monkey made an outline of a heart with a rope of conductive dough. She made the inside from red insulating dough.

We found that if the two sides of the conductive outer circle touched, the lights wouldn’t light up. So we kept the two sides close, but separate.

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Monkey added two red lights to the top and bottom of the heart, making sure the long side of the LED light connected to the same side of the dough as the red battery wand (but don’t let the raw wires touch the raw battery wands! This can make a spark and give you a mild shock).

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Switching on the battery lit up the heart!

Kids will love this fun Valentine's Day STEM activity featuring Squishy Circuits! Learn all about circuits this Valentine's Day!

Aww! You light up my heart!

valentine stem challenge cards




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Filed Under: Seasonal STEAM, STEM Activities, Valentine's Day STEM Activities Tagged With: valentines day

About Brenda Priddy

Brenda grew up thinking she hated science.

But when her 4-year- old daughter was more interested in reading science facts than fairy tales, Brenda realized she had to learn more about science to keep up with her daughter.

Through simple at-home science experiments, Brenda developed a passion for science and now acts as an advocate for STEM education for kids at her website STEAMsational.com.

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What is STEAM?

STEAM activities for kids promote the idea that science, technology, engineering, art, and math can all work together to help kids become critical thinkers, problem solvers, and innovators!

Join us on our journey to discover just how much fun science experiments can be.

What we do… 

STEAMsational offers STEM and science lesson plans and teaching resources to provide a firm STEM foundation for children in the classroom or home.

All you need to do is find your supplies, gather your scientists, and let the innovation unfold.

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