Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Spherical Earth wikipedia , lookup
History of geomagnetism wikipedia , lookup
Schiehallion experiment wikipedia , lookup
Physical oceanography wikipedia , lookup
Geochemistry wikipedia , lookup
History of Earth wikipedia , lookup
Age of the Earth wikipedia , lookup
Plate tectonics wikipedia , lookup
Large igneous province wikipedia , lookup
2nd Quarter Exam Study Guide 6th Grade Science Name ____________________ 1. A collision between two pieces of continental crust at a converging boundary produces what type of geological feature? 2. What was Alfred Wegener's hypothesis of continental drift? 3. In the process of sea-floor spreading, where in the Atlantic Ocean does molten material rise from the mantle and erupt creating a large mountain chain? 4. The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of _____________________________________. 5. The place where two plates are moving toward one another is called a ________________ boundary. 6. As depth beneath Earth's surface increases, what happens to the temperature and pressure? 7. What is the mid-ocean ridge? 8. Put the following Earth’s layer is order from the center outward: mantle, inner core, outer core, crust 9. The point beneath Earth’s surface where rock breaks under stress and triggers an earthquake is called the _________________. 10. The San Andreas Fault in California is an example of a _______________ fault. 11. When earthquakes under the ocean cause the ocean floor to rise suddenly, a _______________ can occur. 12. Most geologists think the movement of Earth's crustal plates is caused by ________________ currents. 13. What indirect method of observation do geologists most often use to study Earth's interior? 14. Volcanic belts form along the boundaries of ________________ plates. 15. Before lava reaches the surface, the molten material is called ___________________. 16. A mass of rock formed when a large body of magma cools inside the crust is called a _____________. 17. If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano? 18. The huge hole left by the collapse of a volcanic mountain is called a ________________. 19. The formation of the Hawaiian Islands is one example of a _________________. 20. In volcanic areas, groundwater heated by magma is a source of what type of energy? ________________ 21. What is the major ingredient of magma? _____________ 22. What was Pangaea and who named it? 23. Old Faithful, located in Yellowstone National Park, is an example of a ______________. 24. Any trace of an ancient organism that has been preserved in rock is called a _____________. 25. When earthquakes under the ocean cause the ocean floor to raise suddenly, what kind of natural disaster can occur? 29. Magma usually forms in what layer of the Earth? 30. Which of the following correctly shows how convections currents in the mantle of the earth cause deepocean trenches to form? Only one is correct! 31. Describe the three stages of life for a volcano. 32. Why do different liquids have different viscosities? Use the diagram to answer each question. 33. Name the type of volcano in diagram A and describe how it forms. 34. Name the type of volcano in diagram B and describe how it forms. 35. Name the type of volcano in diagram C and describe how it forms. 2nd Quarter Exam Study Guide 6th Grade Science Name ________KEY____________ 1. A collision between two pieces of continental crust at a converging boundary produces what type of geological feature? MOUNTAIN RANGES 2. What was Alfred Wegener's hypothesis of continental drift? EARTH’S CONTINENTS WERE ONCE A SOLID LANDMASS THAT BEGAN BREAKING APART ABOUT 2 MILLION YEARS AGO 3. In the process of sea-floor spreading, where in the Atlantic Ocean does molten material rise from the mantle and erupt creating a large mountain chain? THE MIDATALNTIC RIDGE (mid-ocean ridge) 4. The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of __PLATE TECTONICS______. 5. The place where two plates are moving toward one another is called a _CONVERGENT___ boundary. 6. As depth beneath Earth's surface increases, what happens to the temperature and pressure? PRESSURE AND TEMPERATURE BOTH INCREASE 7. What is the mid-ocean ridge? THE LONGEST MOUNTAIN CHAIN ON EARTH; RESULTS FROM THE NEW OCEAN FLOOR WHICH DEVELOPS AT DIVERGENT BOUNDARIES 8. Put the following Earth’s layer is order from the center outward: mantle, inner core, outer core, crust INNER CORE, OUTER CORE, MANTLE, CRUST 9. The point beneath Earth’s surface where rock breaks under stress and triggers an earthquake is called the __FOCUS_____. 10. The San Andreas Fault in California is an example of a __STRIKE-SLIP_____ fault. 11. When earthquakes under the ocean cause the ocean floor to rise suddenly, a _TSUNAMI__ can occur. 12. Most geologists think the movement of Earth's crustal plates is caused by _CONVECTION_ currents. 13. What indirect method of observation do geologists most often use to study Earth's interior? SCIENTISTS STUDY SEISMIC WAVES 14. Volcanic belts form along the boundaries of _TECTONIC_ plates. 15. Before lava reaches the surface, the molten material is called _MAGMA__. 16. A mass of rock formed when a large body of magma cools inside the crust is called a _BATHOLITH_. 17. If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano? THE VOLCANO IS PROBABLY GOING TO ERUPT SOON 18. The huge hole left by the collapse of a volcanic mountain is called a _CALDERA__. 19. The formation of the Hawaiian Islands is one example of a _HOT SPOT_. 20. In volcanic areas, groundwater heated by magma is a source of what type of energy? _GEOTHERMAL__ 21. What is the major ingredient of magma? _SILICA___ 22. What was Pangaea and who named it? WEGENER GAVE THIS NAME TO THE SUPERCONTINENT SINGLE LANDMASS, WHICH EXISTED ON EARTH ABOUT 2 MILLION YEARS AGO BEFORE IT STARTED BREAKING UP 23. Old Faithful, located in Yellowstone National Park, is an example of a _GEYSER__. 24. Any trace of an ancient organism that has been preserved in rock is called a _FOSSIL___. 25. When earthquakes under the ocean cause the ocean floor to raise suddenly, what kind of natural disaster can occur? TSUNAMI 29. Magma usually forms in what layer of the Earth? MANTLE 30. Which of the following correctly shows how convections currents in the mantle of the earth cause deepocean trenches to form? Only one is correct! MUST BE AT A SUBDUCTION ZONE 31. Describe the three stages of life for a volcano. ACTIVE- CURRENTLY ERUPTING OR SHOWING SIGNS OF ERUPTING SOON DORMANT – ASLEEP; MAY ERUPT SONETIME IN THE FUTURE BUT HASN’T IN THE LAST 200 YEARS EXTINCT – DEAD; NOT LIKELY TO EVER ERUPT AGAIN 32. Why do different liquids have different viscosities? BECAUSE OF DIFFERENT COMPOSITION, TEMPERATURE, AND PRESSURE. For magma, we’re talking silica content, temperature, and the amount of gas present Use the diagram to answer each question. 33. Name the type of volcano in diagram A and describe how it forms. A = CINDER CONE VOLCANO – FORMS FROM EXPLOSIVE ERUPTIONS WITH PYROCLASTIC FLOW 34. Name the type of volcano in diagram B and describe how it forms. B = COMPOSITE VOLCANO FORMED BY ALTERNATING QUIET LAVA FLOWS AND EXPLOSIVE CINDER AND ASH FLOWS 35. Name the type of volcano in diagram C and describe how it forms. C = SHIELD VOLCANO FORMED FROM REPEATED QUIET ERUPTIONS WITH LAVA FLOW