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In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Find out which kind of bubble wrap fares best when put in impact.

Find out whether putting something on top of a plant will inhibit its growth.

Do different types of oil mix or stack? Find out in this science fair project idea!

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

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science fair project idea compares biodiversity between drops of water.