In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project idea examines whether people can decode scrambled messages.

This project examines how temperature affects the volume of gas in balloons.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

This project examines whether sugar substitutes are as sweet as real sugar.

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

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Demonstrate which cooking method gets rid of the most fat.

Discover how and which salt melts ice the quickest.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea produces varying pitches of sound.