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Engineers in training can get started with this simple wheel-and-axle construction activity.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

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.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

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

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

In this science fair project, students test how objects float and sink in liquids of different densities.

Check out this cool science fair project idea to learn why it is important for kids to eat healthy foods like fresh fruits and vegetables.

Make an edible play dough with your child to help her develop her sensory and motor skills.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

This science fair project investigates what type of cookie sheet bakes the best cookies.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

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

This experiment will explore if and where fractals can be found in the natural world.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Help your child make an attractive frozen holiday ornament to hang outside during winter months.

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Science fair project that determines which foods and drinks contain the highest amount of glucose.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.