This fun game helps children learn to estimate the most basic unit of time--a minute--without a clock.

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

Make edible amber fossils with your second grader to explore the fascinating world of science!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.