Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

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.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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.

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!

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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

I scream, you scream, we all scream for homemade spearmint ice cream!

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.