Scientific procedures ensure valid data and valid results. Use a water sampling interactive to teach learners the procedures for collecting water samples. The interactive takes users through the process step-by-step with notes of...

Make your lesson on radioactive decay pop with this lab exercise. Using popcorn kernels spread over a tabletop, participants pick up all of those that point toward the back of the room, that is, those that represent decayed atoms. As the...

It is impossible to cool down a glass of water by adding ice. Young scientists explore heat transfer through videos, experiments, and interactive games. They quickly catch on that the water melts the ice and things aren't always as they...