Examine the effect of pressure on carbonation in soda.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this design challenge, your child will create a parachute for a small toy using typical household items.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

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

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair project idea explores the different properties & interactions of sugar molecules.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

In this science fair project, students make their own rain gauge to measure rainfall.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Learn all about balance and motion as your child designs a corn maze!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.