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

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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

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.

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.

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.

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.