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In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea discovers the principle of conservation of mass.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

This science experiment tests if dog saliva can really help heal wounds.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

In this activity your child will create their very own marble maze!

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science fair project idea investigates whether plants can survive being frozen.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Here's a guide to starting a community clean-up project from scratch.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.