Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

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

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

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!

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

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

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Test your skills as a weather forecaster, and learn some science terms on the way!

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!