Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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

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 explores whether cats can be trained in the same way that dogs can.

Discover which fabrics shrink the most in the wash and why.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This science fair project idea identifies trees using a dichotomous key.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Construct and experiment with a periscope using reflected light rays to gather an image.