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.

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.

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

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?

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.

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?

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

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.

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, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!