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.

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

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

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.

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.

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

Help your child make an attractive frozen holiday ornament to hang outside during winter months.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Help your preschooler practice observing and experimenting with this exciting activity where they'll get to examine objects below the water's surface!

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

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

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

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!

Learn all about balance and motion as your child designs a corn maze!

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

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

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

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!