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This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

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.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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 simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Discover how and which salt melts ice the quickest.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

Discover whether a metal will expand under hot water.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This science fair project idea produces varying pitches of sound.

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this fun activity, your child will create their very own solar oven to bake s'mores!

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.