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Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea determines the most effective method of preserving food.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Examine the effect of pressure on carbonation in soda.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this science fair project, students make their own rain gauge to measure rainfall.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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