Science Class Connect Rules • Respect the classroom and our privileges – Do not pollute the chat box – Stay on topic – Science class connects are not free chat sessions • Respect the teacher and your peers – Be appropriate and use good language – Be kind to others – Class connects are a time to learn • Have fun! – Science is cool and full of lots of fun lessons and labs! If you are unable to follow these three rules your privileges will be taken away! JEOPARDY!!!! What happened at the end of both the Paleozoic and Mesozoic eras? A. The ice age B. The breakup of a supercontinent C. A mass extinction of plants and animals D. The appearance of birds The class says: The answer is: C. A mass extinction of plants and animals What concept did James Hutton and Charles Lyell contribute to geology? A. A new form of radiometric dating B. Discovery of fossils in the La Brea Tar Pits C. The principle of uniformitarianism D. Names for the geologic time scale periods The class says: The answer is: C. The principle of uniformitarianism Put the following eras in order from oldest to most recent: Mesozoic, Precambrian, Cenozoic, Paleozoic A. Mesozoic – Paleozoic – Precambrian – Cenozoic B. Cenozoic – Paleozoic – Mesozoic – Precambrian C. Paleozoic – Precambrian – Mesozoic – Cenozoic D. Precambrian – Paleozoic – Mesozoic - Cenozoic The class says: The answer is: D. Precambrian – Paleozoic – Mesozoic - Cenozoic When scientists talk about uniformitarianism, what do they say? A.The rates of geologic change increase with time. B.Geologic processes are different over time. C.Geologic processes operating now are the same as those in the past. D.The rates of geologic processes slow down with time. The class says: The answer is: C. Geologic processes operating now are the same as those in the past. Which answer below has the rock layers listed from oldest to youngest? A.H, I, G, F B.I, H, G, F C.F, G, H, I D.F, I, G, H The class says: The answer is: C. F, G, H, I Which is an example of a relative dating method? A.Determining the types of rocks in rock layers of a canyon. B.Determining the order of rock layers in a canyon. C.Identifying the fossils in a layer of rock. D.Using radioisotopes to determine the age of a rock The class says: The answer is: B. Determining the order of rock layers in a canyon Dinosaurs were alive in which geologic era? A.Paleozoic B.Precambrian C.Cenozoic D.Mesozoic The class says: The answer is: D. Mesozoic We are in the Cenozoic era now. What happened in this era that did not happen in others? A. Shellfish evolved B. Modern birds evolved C. Dinosaurs dominated the planet D. Trilobites evolved The class says: The answer is: B. Modern birds evolved