A Peek at the Past: Gradualism vs. Punctuated Equilibria
Students consider two sets of simulated fossils (caminalcules) that are provided as cutouts. They arrange them on two time scales. One set produces a visual example of gradualism, the other shows punctuated equilibria.
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Understanding the Greenhouse Effect
The greenhouse effect is important, for without it, life on Earth would not exist. An activity that includes modeling the greenhouse effect and acting out the Earth's energy balance makes up the first part in a series of seven lessons....
7th - 9th Science CCSS: Adaptable