Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Does "short circuit" mean that electricity takes a short course? This science experiment provides steps to help you get to the bottom of this science mystery.

Demonstrate how to tell the age of an egg without having to crack it open.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea determines which flower lasts the longest.

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea explores whether talking to a plant will help it grow.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

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

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

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

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.