4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

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

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

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

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

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

This science fair project idea compares biodiversity between drops of water.

Help your child celebrate the summer and the sun by making a sandy seascape.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

This easy at-home experiment is a great way to "see" science.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

This science research project challenges students to think of more effective lobster farming methods.

This science project allows students to study the psychology of happiness.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.