Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

Determine how good we are at direct and indirect observation.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.