This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Make this easy composting dessert and then enjoy the yummy results!

Looking for a fun way to encourage imaginative play? Try crafting these animal dice with your preschooler.

Help your child make a beautiful homemade sandcastle that will last!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How can you tell the difference between a spider and an insect? Your child will find out as he makes a tray of yummy creepy crawly snacks.

Make these homemade shell fossils and introduce your child to the wonders of science!

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

Summer is a great time to work on pre-kindergarten skills that will serve your child well in her first year at school, while having some fun in the sun!

When the wind starts blowing, you and your child can plant a sponge garden in the comfort of your own kitchen. Here's how:

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

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

Have your child make a special mobile inspired by the weather outside. Learn about seasons, the environment, and art in 3D.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

Help your preschooler craft a homemade wind spinning device--a surefire to make your backyard sparkle, and teach her a bit about weather!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.