3 Edible Science Experiments to do with Kids at Home

3 Edible Science Experiments to do with Kids at Home

Have you ever thought of your kitchen as a science laboratory? For many parents, getting children involved in science at home presents a unique challenge. Parents can feel that they do not have the equipment or the knowledge to do science experiments at home. What they need to realize is that the kitchen is their very own home science laboratory!

Cooking and preparing food involves many chemical changes and examples of scientific processes. With a minor amount of mess and no major explosions, you can use food preparation to teach children about science, and many of these edible “science experiments” might just end up being delicious.

Here are 3 edible experiments that will teach your children important chemical and scientific concepts:

1. Dissolving and Recovering  - Rock Candy

This experiment allows children to experiment with creating saturated and supersaturatedsolutions, and observing the formation of large crystals from these solutions. You will need:


    • ½ cup water

    • 1 cup granulated sugar

Lab equipment:

    • measuring cup

    • small saucepan

    • wooden spoon

    • clear containers (like small jars or glasses)

    • a small piece of string


    1. Start warming up the water in the saucepan.

    2. Add sugar to the water one spoon at a time while stirring the solution.

    3. Keep adding the sugar until the sugar stops dissolving when you stir. The solution is now saturated.

    4. Keep adding sugar until it is all dissolved.

    5. Bring the solution to a boil and let it boil for about a minute. The solution should be thick and clear with no crystals.

    6. Pour the hot solution into the clear containers.

    7. Fix a weighted string so that it is hangs into the solution


As the solution cools it may become “cloudy”. If you examine it with a magnifying glass, you will see that small crystals are forming in this supersaturated solution.

Over several weeks, bigger crystals will start forming as the water evaporated. You need to make sure that the surface remains clear, so the water can keep evaporating. After the “rock candy” has formed on the string, you can examine the shape of these big crystals and compare them to the shape of smaller sugar crystals.

edible science experiments pin2. Liquids of Different Densities - Salad Dressing

This experiment teaches children that liquids of different densities do not dissolve in each other. They will be able to observe different layers of liquid within a mixture. You will need:


    • ⅓ cup vinegar

    • ⅔ cup salad oil

    • ¼ teaspoon pepper

    • ¼ teaspoon garlic powder

    • ¼ teaspoon paprika

    • ½ teaspoon salt

Lab Equipment:

    • jar with a tight cover

    • watch or clock with a second hand

    • magnifying glass


Add all the ingredients to the jar, and close the lid well. Have your child shake the jar vigorously for a few seconds. Set the jar on the table and watch the two liquids separate.


Use the magnifying glass to examine the size of the bubbles in the liquid. Shake the jar again, and then time how long it takes for the two liquids to separate.

3. How Water Moves up Stems - Striped Celery

An important function of a plant’s stem is to move water from the roots up to the leaves. This experiment will allow children to watch how quickly water moves up a celery stalk. You will need:


    • 3 - 4 celery stalks.  Some should have several leaves, while others have very few

    • water

    • food coloring

Lab Equipment:

    • 3 - 4 clear jars or glasses.


Fill the glasses with water. Set the glasses on the table and add different colors of food coloring to the water. Set one stalk of celery in each glass.


Observe how quickly the colored water moves up the stalks. Which ones move the water most quickly?

Edible science experiments are a great way to engage children in science and teach them that science is relevant to everything in the world around us. For these and more recipes, check out Science Experiments You Can Eat by Vicki Cobb.  

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