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

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

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.

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

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.