Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!