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Science Sunday: Changing the Effects of Air

Hi everyone and welcome back to another edition of Science Sunday. Today we are talking about how we can change the effects of air once we change the temperature of the air. What do you think happens when the temperature of the air gets warmer or colder? Specifically, we are talking about air molecules. When …

Science Sunday: Experimenting with a Fire Extinguisher

So we have included a fire extinguisher in this Science Sunday edition, but this experiment actually has nothing to do with fire at all. In this fire extinguisher, there is a lot of carbon dioxide under an extreme amount of pressure. We are going to use that built-up pressure to push a coloring pencil through …

The Antarctic Florist Kingdom

Today Antarctica is a frozen desert. The few plants that survive here- mosses, lichens, liverworts, algae, a single species of hair grass, and a flowering pearlwort- are restricted to the ice-free areas of the Antarctic Peninsula.  But as the movie Dinosaurs of Antarctica shows us, the southernmost continent was not always so cold and barren.  …

Science at Play: CD Spinners & Rattlebacks

We all know how tops spin equally well whether they’re spinning clockwise or counterclockwise. But is there something that will only spin in one direction? How would that work? Today we are talking about rattlebacks and the interesting physics phenomenon behind them. Watch the full Science At Play segment below to learn more.  Materials …