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In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Use a dichotomous key to identify plants or animals.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project investigates why the number of visible stars changes from place to place.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

In this fun experiment, we'll find out how color affects heat absorption!

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.