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.

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

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.