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

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.