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Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Will the shape of an ice cube impact how fast the ice melts?

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science project allows students to study the psychology of happiness.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This classic children's game demonstrates how sound travels through air vs. through a solid.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

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

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

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

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

Construct and experiment with a periscope using reflected light rays to gather an image.