Karen Latchana Kenney

Much of what you experience from the things you see to the sounds you hear travels to you in waves. But how do sound and light waves work? For thousands of years, scientists have been testing hypotheses about waves and learning from the results of observations and experiments. These tests ultimately lead to more questions: How can we see colors? Why can light travel in a vacuum while sound can't? How does the pitch of a sound change as it gets closer...

Forces and motion are at work all around you when you kick a ball, ride a bike, or drop a book. But what exactly are forces? And how do they make things move? For thousands of years, scientists have been testing hypotheses about forces and motion and learning from the results of their experiments. These lead to more questions: Why do you speed up when you're biking down a hill? Why are heavier objects harder to pull? Why doesn't the moon float off...

Share your passions with the world by recording them and posting them online! Learn the first steps of recording videos and find out how to hone your moviemaking craft and safely share your work. Lights, camera ... action!