Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Explore the world from your own home by conducting research about other cultures with your 4th grade child.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This science fair project idea explores whether white light can be separated into different colors.

Test your learner's knowledge of Barack Obama by challenging your child to complete a crossword puzzle about the President after reading a short biography.

Use the holiday gift giving season as an excuse to give your fourth grader a valuable lesson in making and keeping a budget!

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.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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

Car cluttered with old maps now that you've adopted GPS technology? Upcycle them in this fun geography craft.

Practice probability as well as negative and positive numbers in this fun math card game designed for fourth graders.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

In this real-world exercise about the Teal Pumpkin Project, your child will create a persuasive poster to spread the word about the project in the hopes of convincing people to offer non-food trinkets this Halloween season.

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.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Challenge your child to a word count war, and practice good note-taking skills at the same time!

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

This science fair project idea produces varying pitches of sound.