What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This simple experiment serves as an introduction to the greenhouse effect.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Make sourdough bread...and learn some colonial history and modern science in the process!

This basketball project explores the best way to make the perfect shot every time.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea explores whether white light can be separated into different colors.

In this experiment we will be determining whether birds prefer certain colors of seed.