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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 the height at which a pendulum is released affects the length of time it continues.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This project examines whether people's taste perception is influenced by what they see.

Discover whether a metal will expand under hot water.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

The purpose of this science fair project is to build a basic radio.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

This science fair project idea experiments with spinning color wheels and optical illusions.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.