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Kitchen Science Experiments

Fun Science Experiments Using Kitchen Chemicals

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Not all science requires expensive and hard to find chemicals or fancy laboratories. You can explore the fun of science in your own kitchen. Here are some science experiments and projects you can do that use common kitchen chemicals.

Rainbow Density Column

Rainbow in a Glass Density Column
Anne Helmenstine
Make a rainbow-colored liquid density column. This project is very pretty, plus it's safe enough to drink.

Experiment Materials: sugar, water, food coloring, a glass

Baking Soda & Vinegar Volcano

Adding baking soda causes the volcano to erupt.
Anne Helmenstine
This is the classic science fair demonstration in which you simulate a volcanic eruption using kitchen chemicals.

Experiment Materials: baking soda, vinegar, water, detergent, food coloring and either a bottle or else you can build a dough volcano

Invisible Ink Experiments

This smiley face was made with invisible ink. The face became visible when the paper was heated.
Anne Helmenstine
Write a secret message, which becomes invisible when the paper is dry. Reveal the secret!

Experiment Materials: paper and just about any chemical in your house

Rock Candy Crystals

Rock Candy Swizzle Sticks
Laura A., Creative Commons
Grow edible crystals. You can make them any color you want.

Experiment Materials: sugar, water, food coloring, a glass, a string or stick

Rubber Eggs and Chicken Bones

If you soak a raw egg in vinegar, its shell will dissolve and the egg will gel.
Anne Helmenstine
Turn a raw egg in its shell into a soft and rubbery egg. If you're daring you even bounce these eggs as balls. The same principle can be used to make rubber chicken bones.

Experiment Materials: egg or chicken bones, vinegar

Magic Colored Milk Experiment

Milk and Food Coloring Project
Anne Helmenstine
Nothing happens if you add food coloring to milk, but it only takes one simple ingredient to turn the milk into a swirling color wheel.

Experiment Materials: milk, dishwashing liquid, food coloring

Make pH Indicator

Red cabbage juice can be used to test the pH of common household chemicals.
Anne Helmenstine
Make your own pH indicator solution from red cabbage or another pH-sensitive food then use the indicator solution to experiment with the acidity of common household chemicals.

Experiment Materials: red cabbage

Pepper and Water Science Experiment

All you need is water, pepper, and a drop of detergent to perform the pepper trick.
Anne Helmenstine
Pepper floats on water. If you dip your finger into a water and pepper, nothing much happens. You can dip your finger into a common kitchen chemical first and get a dramatic result.

Experiment Materials: pepper, water, dishwashing liquid

Make Hot Ice

You can supercool sodium acetate and cause it to crystallize on command.
Anne Helmenstine
You can make 'hot ice' or sodium acetate at home using baking soda and vinegar and then cause it to instantly crystallize from a liquid in 'ice'. The reaction generates heat, so the ice is hot. It happens so quickly, you can form crystal towers as you pour the liquid into a dish.

Experiment Materials: vinegar, baking soda

Honeycomb Candy

Honeycomb candy has an interesting texture.
Anne Helmenstine
Honeycomb candy is an easy-to-make candy that has an interesting texture caused by carbon dioxide bubbles that you cause to form and get trapped within the candy.

Experiment Materials: sugar, baking soda, honey, water
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