With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Word color association is just a fancy way to talk about the way we connect colors with words.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

This science fair project idea provides evidence that air is everywhere and takes up space.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

This science fair project idea investigates the hardness property of minerals.

Demonstrate how to tell the age of an egg without having to crack it open.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This science fair project idea produces varying pitches of sound.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

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.