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.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

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.

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

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

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

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

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

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Invite your kindergarten marine biologist to practice in scientific identification and categorization while creating a lovely treasure box.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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!

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!