This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Instead of drilling facts, grab sidewalk chalk and head outside for a rousing game of this Math Run game. Play the Math Run game with your child.

Teach your third grader about the concepts money and purchasing with this "Mock Card Shop" activity.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

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.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.