This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

This project examines how temperature affects the volume of gas in balloons.

Turn any sunny summer day into a fun and special occasion by having a watermelon seed spitting contest!

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.