This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

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

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea explores whether color affects a person's emotional state.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project teaches students about wilting and browning of salad greens.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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?

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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.

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