10/10/11 and 10/12/11

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<ul><li> 1. DATE: 10/12/11A/B DayLEQ: What evidence do we use to supportthe extinctions in the geologic timescale?1. List the following in order, from longest to shortest: PERIOD, EPOCH, EON, ERA2. List the following, from earliest to latest (most recent) Cenozoic, Paleozoic, Mesozoic, Precambrian3. What is the geologic timescale?4. Copy and complete the following sentence: Scientists divide the geologic timescale based on (a certain number of years/important events in earths history).</li></ul> <p> 2. TRACK YOUR PROGRESS: Unit 1 Quiz C-1 = 95-8 = 60 -15 = 25-2 = 90-9 = 55 -16 = 20-3 = 85-10 = 50-17 = 15-4 = 80-11 = 45-18 = 10-5 = 75-12 = 40-19 = 5-6 = 70-13 = 35-7 = 65-14 = 30 3. LETS REVIEW! 4. TIMESCALE:EONERAPERIOD EPOCH 5. Geologic Time ScalePRECAMBRIAN TIME Paleozoic Era Mesozoic EraCenozoic Era 6. Chemical and Mechanical Weathering 7. Todays LEQ: What evidence do we useto support the extinctions in thegeologic timescale?By the end of today, you should be able to1. Describe the two greatest extinctions in the geologic history2. Use evidence to support the causes and effects of extinction on earth3. Describe ways that humans can cause and prevent extinctions 8. KEY VOCABULARY:35. EXTINCTION 9. Activating Strategy http://www.spike.com/video-clips/bbbz0b/ice-age-three-melonsSTOP AND JOTWhat causes animalsto become extinct? 10. Extinction: when an animalspecies disappears from earth 11. 99.9 of all ________% species that haveever lived on earthhave gone extinct!!! 12. Extinctions and the geologic timescale:The geologictimescale isdivided byimportantevents, likeextinctions(NOT by years!) 13. Extinction: when an animal species disappears from earthBefore After1.2.3.4.5. 14. Anticipation Guide: TRUE OR FALSE?1. 50% of the earths species have gone extinct.2. Mass extinctions make it impossible for new life to live on earth.3. Volcanic eruptions and large asteroids or comets are most likely the causes of extinction in many cases.4. A flood is most closely linked to the extinction of the dinosaurs.5. Today, many scientists think the evidence indicates a sixth mass extinction is under way. 15. Mass Extinction Article! 16. Extinction: when an animal species disappears from earthBefore After1. T2. F3. T4. T5. F 17. Lets Check: TRUE OR FALSE?1. 50% of the earths species have gone extinct.2. Mass extinctions make it impossible for new life to live on earth.3. Volcanic eruptions and large asteroids or comets are most likely the causes of extinction in many cases.4. A flood is most closely linked to the extinction of the dinosaurs.5. Today, many scientists think the evidence indicates a sixth mass extinction is under way. 18. Scientists use rockand fossil evidenceto learn about extinctions from the past. 19. Brain Pop: Extinctions 20. Group Research and Presentations Use the article provided to make a poster!Your poster must include:1) a title2) key information from your article3) a brief summary of what you read4) illustrations 21. Summarizer: WHAT TO LISTEN FOR!!!!!!3 causes of extinction3 ways humans can cause extinction3 things you can do to protect species frombecoming extinct 22. Learned: Questions: 23. Group Presentations If YOU are presentingIf YOU are listening You are jotting down key You are explaining yourideas, facts, and questionsposter and the article thatyou may have for the groupyour group read to yourclassmates You are listeningrespectfully You are explaining KEYPOINTSnot just reading You are making sure thatfrom your article!you can answer questions You are making eye contactabout that groupspresentation!and speaking clearly THINGS TO LISTEN FOR!-3 causes of extinction-3 ways humans can cause extinction-3 things you can do to protect species frombecoming extinct 24. Who Can Tell Me How the dinosaurs became extinct Watch this clip. As you watch, fill inthe blank below: The dinosaurs became extinct because _______________________ ______________________________ ______________________________ __. http://www.youtube.com/watch?v=y4COsg8o02Q 25. Summarizer: Use the following template to write aparagraph explaining your opinion about extinctionsin the past and the future:Extinctions can be caused by many things,including _(list at least 3 causes of extinction)_.Humans can contribute to the extinction ofspecies by _(list at least 3 ways humans can causeextinction)_.Some ways that we can protect species fromextinction is by _(list at least 3 things you can doto protect species!)__. </p>