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

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

Word color association is just a fancy way to talk about the way we connect colors with words.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

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.

Use pepper and soap to discover some fun facts about the properties of water.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Start thinking about how the internet works by assembling an Ethernet cable of your own!

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

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

This science fair project will help students learn about non-vascular plants, such as mosses.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.