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.

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.

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

Try this arts and crafts activity with your preschooler: make bread from yeast dough to teach her about the science behind bread baking.

If you find yourself with a pair of kids' rain boots too cute to toss and too worn to wear, try making this fun and easy planter.

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!

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Help your child hunt and capture bugs to observe to practice important science skills and satisfy her curiosity simultaneously!

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

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

Let your young adventurer go bug hunting in the great outdoors with their very own bug net!

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!

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.

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!

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

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:

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