Download EarthViewer Questions

CGC 1D Plate Tectonics and Continental Drift: EarthViewer App for iPad Switch between views by pinching and zooming the timeline (see Tutorial for video example). Drag the bar up and down to change the view the changes *Pinch, zoom and drag to Time Period of the Earth rotate the Earth* Displays graph In-­‐depth Tutorial overlays of a range of descriptions Here data; scroll through the of selected timeline to see the topics Turns on and off different changes over time overlay layers. Flags appear next to the timeline; taping them will open a window showing more information 1. What is the day length during the (time range): a. Cambrian Period ___________________________________________________ hours b. Carboniferous Period _____________________________________________ hours c. Jurassic Period _____________________________________________________ hours d. Cretaceous Period _________________________________________________ hours 2. Explain, in your own words, how did the eon Phanerozoic get its name? _____________________________________________________________________________________________
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_____________________________________________________________________________________________ Geologic Events 3. How long ago did the Earth form? _____________________________________________________ 4. Describe the formation of the Moon. __________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ 5. How long ago were the first plate tectonic movements? ____________________________ a. What evidence did mineralogists use to determine these first plate movements? _____________________________________________________________________ ____________________________________________________________________________________ 6. During which years was the Earth a “Snowball”? (2 events) ____________________________________________ and ___________________________________________ a. What does the term “Snowball Earth” mean? _________________________________ ____________________________________________________________________________________ 7. What event happened approximately 4400 mya? ____________________________________ ____________________________________________________________________________________________ 8. When was the supercontinent Pangaea formed? _____________________________________ a. What 2 continents collided to form Pangaea? _______________________________________ and ________________________________________ b. What continents did Pangaea break up into 100 mya? _________________________________________ _________________________________________ _________________________________________ _________________________________________ _________________________________________ _________________________________________ Biological Events 9. When was the Cambrian Explosion? ___________________________________________________ a. What % of the atmosphere was Oxygen (O2)? ________________________________ b. What % of the atmosphere is O2 today? _______________________________________ 10. What were the first land plants? _______________________________________________________ a. In which period did these first land plants form? _____________________________ 11. How long ago were the first land vertebrates formed? _______________________________ 12. When did Homo Sapiens first appear? (in THOUSANDS OF YEARS) _____________________________________________________________________________________________ Mass Extinctions 13. What is the name of the largest Extinction event in Earth’s history? (2 names) _____________________________________________________________________________________________ a. What is the estimated % of lost species during this extinction? ____________________________________________________________________________________ 14. What was the cause of the Triassic/Jurassic Extinction? ____________________________ ____________________________________________________________________________________________ Impact Events 15. Find the Chicxulub meteorite. a. In what period did the meteorite strike? ______________________________________ b. What are the coordinates of the strike? _______________________________________ c. What modern physical feature did the meteorite strike? ____________________________________________________________________________________ Fossils 16. Find the Archaeopteryx fossil site. a. How old are these fossils? ______________________________________________________ b. Describe the kinds of fossils found here. ______________________________________ ____________________________________________________________________________________
____________________________________________________________________________________ 17. On what continents have scientists found fossils of the seed fern Glossopteris? ____________________________________________ ____________________________________________ _______________________________________ ________________________________________ Plate Tectonics 18. The Earth’s crust is divided into plates. What forces drive the movement of these plates? _______________________________________ and _______________________________________ 19. How were the Himalayan Mountains formed? _______________________________________ ____________________________________________________________________________________________ 20. Name two (2) supercontinents. ____________________________________________ and ___________________________________________ 21. According to the diagram, where is new plate material formed? _____________________________________________________________________________________________ Charts (to be answered using the Phanerozoic Period) 22. Around what time in the Earth’s history were temperatures at their hottest? _____________________________________________________________________________________________ The lowest? ______________________________________________________________________________ 23. In which Period did the Earth have the highest amount of O2 in the atmosphere? ____________________________________________________________________________________________ The least? _______________________________________________________________________________ 24. How long ago did Earth have the highest amount of Carbon Dioxide (CO2)? _____________________________________________________________________________________________ What was the amount of CO2? _________________________________________________________ What was the amount of O2? ___________________________________________________________ What was the temperature? ____________________________________________________________