Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

This science fair project idea investigates how color affects temperature.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This experiment evaluates whether there is a relationship between grade point average (GPA) and dating status.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Do males really prefer listening to male than female singers? Find out when exploring this science fair project!

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.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Explore the effect of wind speed on the burning rate of a candle.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This project examines various algorithms to determine the ideal algorithm for a strategy game.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.