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.

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

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

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.

Test whether plants can grow without sunlight and water.

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

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 experiment we will be determining whether birds prefer certain colors of seed.

Discover whether a metal will expand under hot 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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

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

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.

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

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

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

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