How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Science fair project that determines whether moths are attracted to one color of light more than others.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

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

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

This cool music science fair project idea has kids determine the effect of music on memory. Can music improve our cognitive abilities? Why or why not?

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

This science fair project determines the quality of a given product.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).