Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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

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

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.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science fair project idea explores whether talking to a plant will help it grow.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

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

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Help your child learn about animal classification with this fun and delicious activity.

In this project, a mnemonic is used to test how it increases memory.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

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