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.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Here's a pressed leaf card project that puts science and writing together for your second grader.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

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.