Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea investigates how magnetism can defy the force of gravity.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science fair project idea explores the egg's thin membrane.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.