What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project idea explores substances that cause a bubble to last longer.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this science fair project you will make a model of a cell membrane using very simple material.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

How powerful is the reaction between baking soda and vinegar? Find out here!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Do you think heat can affect a plant's growth rate?

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.