Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

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.

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

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

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

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

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.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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 which determines whether a person's taste in music is dictated by the key that the song is written in.

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

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

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

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.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.