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.

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

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:

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!

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

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

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

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

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

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.

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

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 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 adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

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

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Have your little astronaut create her own crater-filled moon with this fun craft project that encourages learning about the final frontier.

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!

Show your preschooler how to construct this very special planter for Mom. It makes a great pick-me-up, and it's easy for kids to make in a flash!

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Here's a simple science activity that will help your child better understand how wells bring us water.

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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