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

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

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

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.

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

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.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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.

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

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

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.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

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!

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.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!