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35+ Valentine Science Activities Kids Will LOVE

Help your kids learn to love science this Valentine’s Day! We’ve put together a list of 35+ Valentine science activities from our favorite kid bloggers to help you make this day fun and educational. From fizzy hearts to tasty rock candy and fun love potions, you’re sure to find an activity your little one will fall for. Let us know which activities you try!

35+ Valentine Science Activities for Kids

Related: Love Birds Valentine’s Day Craft

Valentine Science Experiments for Kids

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Density Jar Experiment | Lemon Lime Adventures

Salt and Ice Experiment | Wee Warhols for Red Ted Art

Fizzy Exploding Hearts | Preschool Powol Packets

Valentine’s Day Hydrogen Peroxide Yeast Experiment (Elephant Toothpaste) | Little Bins for Little Hands

Love Potion Valentine Experiment | Mommy’s Bundle


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Magnetic Valentine Hearts | Adventures of Adam

Fizzing Heart Cloud Dough Experiment | Powerful Mothering

Heart Salt Sculptures | Fantastic Fun and Learning

Flying Cupids Static Electricity Experiment | Science Kiddo

Heart Marshmallow Toothpick Structures | Buggy and Buddy


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Pink Volcano Experiment | Teach Me Mommy

Marbled Milk | Science Kiddo

How to Make Rock Candy | Powerful Mothering

Candy Heart Rainbow Science | Fantastic Fun and Learning

Frozen Vinegar Hearts | Inspiration Laboratories


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Fizzy Science Experiment | NurtureStore

Cherry Explosion Sweet Smelling Fizzy Science | There’s Just One Mommy

Magnetic Heart Jar | JDaniel4’s Mom

Ice Heart Science and Art Activity | The Science Kiddo

Interlocking Crystal Hearts | Go Science Kids

Dissolving Candy Hearts Experiment | Lemon Lime Adventures


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3D Heart Model | Schooling a Monkey

Valentine’s Slime | Little Bins for Little Hands

Building Structures with Candy Hearts | Lemon Lime Adventures

2 Ingredient Glitter Slime | Inspiration Laboratories

Dissolving Skittles Experiment | Science Sparks for Red Ted Art


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Love Potion Experiment for Preschoolers | Preschool Powol Packets

Valentine’s Coded Messages | Inspiration Laboratories for Red Ted Art

Valentine’s Oil and Water Density Experiment | Little Bins for Little Hands

Melting Hearts Frozen Dough | Lemon Lime Adventures

Pink Glitter Slime | The Moments at Home


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Melting Hearts Preschool Science Experiment | Crafty Kids at Home

Bird Watching/Counting + Treats to Make for the Birds | Share It Science

Heart Shaped Bubble Wands | Go Science Kids

Growing Big Crystals | STEAM Powered Family

Magic Erupting Color Reveal Experiment | Schooling a Monkey

Best Friend Valentine's Day Party

Monday 29th of January 2018

[…] Valentines Science Activities […]

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Friday 19th of January 2018

[…] 35+ Valentine Science Activities for Kids at Glue Sticks and Gumdrops […]

Kimm at Reinvented

Friday 3rd of February 2017

Wow, I think my teenagers would love these too! ;) Who am I kidding, I think I might try them myself.

maggy, red ted art

Monday 30th of January 2017

Wow! Such an extensive list of ideas!! Thank you so much for including our projects!

Donella Crigger

Thursday 2nd of February 2017

You're so welcome!