Today, you'll be learning more about mass extinctions—the major events in the history of life on earth where enormous numbers of species went extinct at the same time. Scientists use these mass to divide the earth's history into different time periods, like the ones on the geologic time scale you learned about yesterday.
Here's today's assignment:
1. First, clink on the link below to read the article and answer questions on the handout:
National Geographic: Mass extinctions article
2. Next, click on the links below to watch each of these videos about the two biggest mass extinctions of all time. If you have earbuds/headphones, this is the perfect time to use them—plug them in to the CPU and listen to the videos in peace! During/after watching each video, answer the questions on the handout associated with each one.
1st video: Permian-Triassic Mass Extinction: The mother of all die-offs
2nd video: Cretaceous-Tertiary Mass Extinction: Bye-bye, dinosaurs :(
Just like yesterday, take the handout home with you; they'll both be handed in on Monday. If you didn't complete the assignments in class, you can finish them up at home or in the library.
Have a great weekend!
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