This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project idea explores the egg's thin membrane.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

This science fair project idea explores how length affects the weight a bridge can hold.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

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

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

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

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea investigates the hardness property of minerals.