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The Best Science Experiments for Kids

February 12, 2023

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A collection of the very best science experiments for kids at home, including rainbow milk, fluffy slime and make-your-own fizzy potions!

Updated March 2023

Basically these are our favorites out of all the science experiments we’ve tried so far. The ones we absolutely loved and the ones we’ve repeated (and repeated and repeated).

Most of these are pretty simple. The few that are a tad more involved or require materials you need to track down are included because they are well worth it.

BEST Science Experiments for Kids

rainbow milk experiment — Photo by Jean Van’t Hul

1. Rainbow Milk Science Experiment for Kids

Also called milky fireworks, erupting colors, magic milk, tie-dyed milk– this is very possibly both the easiest and most beautiful science experiment out there.

baking soda experiment — Photo by Rachel Withers

2. Baking Soda & Vinegar Science Experiments

Try this classic, hands-on learning activity combining science and art. Baking soda and vinegar are an easy science experiments for kids.

Dissolving Candy Art with a Variety of Candies around the perimeter of a square plate — Photo by Jean Van’t Hul

3. The Rainbow Skittles Experiment

A mesmerizing variation of the popular rainbow skittles experiment, this dissolving candy art & science activity uses a variety of colorful candies to make designs that quickly fill in with coloring from the dissolving candy.

child-playing-with-oobleck — Photo by Andrea Martelle

4. How to Make Oobleck

Oobleck is a non-Newtonian fluid –– it changes from a solid to a liquid –– which makes it a very engaging sensory play material for kids and it’s so easy to make, too!

Three painted daisies in jars of food coloring — Photo by Jean Van’t Hul

5. Painted Daisies: Simple Science Experiment for Kids

Try this simple science activity where flowers show us how they absorb liquid and reflect it on its petals.

melting ice experiments — Photo by Jean Van’t Hul

6. How to Do a Melting Ice Experiment

If you haven’t tried melting ice with salt and watercolors yet, you must! Watch as salt melts tunnels through the ice! The food coloring or liquid watercolors help you see the tunnels better and make the whole experiment as much of an art activity as a science experiment.