This science fair project idea explores whether talking to a plant will help it grow.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This project examines what types of objects burn and which burn faster and cleaner.

This science fair project idea investigates how magnetism can defy the force of gravity.

The objective of this science project is to determine the length of time for different seeds to germinate.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Find out whether putting something on top of a plant will inhibit its growth.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Find out which type of sponge holds the most water.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

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

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.

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