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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Using a toy race car kids create a visual model of the Doppler Effect.

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

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.