In this project children practice the scientific method while playing with puffy paint.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This project determines what category of person is most likely to be ticklish.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This project investigates the affect of storage temperature on microwave popcorn.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

In this project students experiment with making music using only glasses of water.

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

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

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

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