Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project examines how seeds hitchhike on animals and clothing.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea investigates the hardness property of minerals.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!