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Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this project students experiment with making music using only glasses of water.

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Science fair project that examines condensation and the conditions needed in order for dew to form.

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.

Test whether plants can grow without sunlight and water.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Discover whether a metal will expand under hot water.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project idea examines the reason boats are shaped and engineered.

In this design challenge, your child will make a bottle rocket using typical household items.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.