This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

This fascinating science fair project explores eye color genotypes.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

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.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

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

Determine how we can separate the components of a solution

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

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

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

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?

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.