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

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.