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

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

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

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.