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

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

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

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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

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 interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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

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

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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!

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!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.