critical thinking

Strange Refrigerator Magnets

This experiment is one that I stumbled upon while working on another idea. That seems to happen to me frequently. I was planning to magnetize a needle, and as I was sorting through all the magnets on our refrigerator, I got sidetracked into playing with the rubber magnets (which are really plastic, not rubber). The more I played; the more interesting it got.

Newton's Laws

This time we will investigate Newton's laws of motion. While Galileo laid the foundations for them, Newton was the one that put them into the form that we know them today.

Why Wet Things Don't Burn

Sometimes things are so common that we never stop to really think about them. We all know from experience that a piece of paper that is soaked in water does not burn easily. Wet wood does not work well in a campfire. What is it about water that keeps things from burning? Think about it first, and then watch the video.

What is Science?

Why do we have to study science? What good is it? For that matter, what is it? That question, "What is science?", is a very good one, and not easy to answer. Many different definitions have been proposed by different sources. After looking through many of them, I have tried to combine and distill them into a workable definition that we can use in our study of science.