All together now! Physical science pupils observe the effects of temperature and amount of substance on pressure and volume of a gas. The interactive resource guides learners through the Combined Gas Law, where they observe changing...

Why do the bases in DNA pair up the way they do? Unravel the mystery of the double helix in a virtual lab. Young scientists follow in the footsteps of Watson and Crick to determine the free energy associated with DNA base pair binding....

Up, down, back, and forth. When you make a pendulum out of a spring, there's a lot to observe. Aspiring masters of motion examine the combined kinetic energies of spring and pendulum motion using a detailed interactive. Learners observe...

In this significance of science in society activity, 8th graders read 3 paragraphs, then interactively answer 9 comprehension and grammar questions, with immediate online feedback; video at the beginning is not longer available, but the...

In this online interactive philosophy learning exercise, students respond to 10 short answer and essay questions about Galileo's contributions to science.