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

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project idea explores substances that cause a bubble to last longer.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project idea determines if the color of light affects the growth of plants.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

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 project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.