Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

This science fair project idea provides evidence that air is everywhere and takes up space.

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

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

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Help your child learn about animal classification with this fun and delicious activity.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

This science fair project idea determines what household items are good conductors of electricity.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

This science fair project idea identifies trees using a dichotomous key.