Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

In this science fair project, students create their own miniature salt flats at home.

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.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

When the wind starts blowing, you and your child can plant a sponge garden in the comfort of your own kitchen. Here's how:

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Science fair project that uses distillation to convert salt water into fresh water.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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.