Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

This project examines how temperature affects the volume of gas in balloons.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Investigate which substances are most effective at removing salt from water.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

Discover how and which salt melts ice the quickest.

This science fair project collects information on the Internet about yourself and others.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

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

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

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

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

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

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

Can you think of a way of cleaning dirty water using the sun? In this activity, you will be making a "solar still" that is able to do just that!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.