Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science experiment tests if dog saliva can really help heal wounds.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This experiment tests which gender is better at catching how a magician performs his tricks.

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

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

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.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project idea examines whether boys and girls differ in reflexes.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Determine if gender affects the ability to identify different smells.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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.

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

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?