This experiment comes from a suggestion made by B. Eschner. It started with his observations as he washed a plastic bag. It developed into a demonstration of water pressure, which then turned into a wonderful explanation of why things float. The more I played with it; the more I liked it. I hope you will have as much fun (and learn as much) as I did.
One of the most misunderstood things about the topics of earthquakes is the Richter Scale. While it is a very important measurement, it actually gives us very different information from what most people think.
I have loved dinosaurs since I was 4 years old. They lead me to my interest in science, caused me to study geology in college, and lead me to my first job as a geology instructor at the Memphis Pink Palace Museum. They were incredible creatures, ranging in size from tiny to huge. How big were dinosaurs? Here is a way that you can find out.
I hope that you made your own Whistle Stick, and have been playing...., I mean experimenting with it. I also hope that you spent some time thinking about the science behind the sound that it makes, because that is what we are going to explore this time. For your exploration, you will need:
This experiment comes from a question sent to me a homeschooling mom named Elaine. It is based on a "classic" experiment often seen in textbooks to show that air has weight. While it starts simple, it takes some twists along the way that often cause people to misunderstand what is actually happening.