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Oceanography Unit Review 1. 2. 3. Read the question Write your answer on the white board Write ONLY the answer Question #1 What kind of particle can be lifted by wind? Answer: Dust Question #2: What is the movement of a particle by a series of “jumps”? Answer: saltation Question #3: What is sand made of? Answer: quartz Question #4: What is it called when wind removes the top layer of fine, very dry rock or soil particles, leaving only large rocks behind? Answer: deflation Question #5: What are mounds of wind-blown sand? Answer: dunes Question #5.5 What is a thick yellowish deposit of wind-blown dust called? Loess Question #6: What is it called when waves or rocks break up other rocks? Answer: abrasion Question #7: What kind of weathering occurs when salt and air react with rocks? Answer: chemical Question #8: Some beaches are black because the source rock is what? Answer: Volcanic rock Question #9: The area people use for recreation is called what? Answer: berm Question #10: Waves that run parallel to the shore are called? Answer: longshore Question #11: The sea is currently rising at a rate of what? Answer: 1 mm per year Question #12: What is it called when the mouth of a river gets submerged by ocean water? Answer: estuary Question #13: What is brackish water? Answer: Mix of saltwater and freshwater Question #14: What are the long, narrow offshore islands that run parallel to the shore called? Answer: Barrier islands Question #15: What is the body of water between the barrier islands and the shore? Answer: lagoon Question #16: What are the conditions that animals in a coral reef need? Answer: Warm, shallow, water Question #17 How much of our planet is water? Answer: 71% Question #18: What are the four major oceans? Answer: Pacific, Atlantic, Indian, Arctic What is the study of the physical characteristics, chemical composition, and life forms of the ocean called? Oceanography What are underwater research vessels called? Submersibles What do scientists use to map the ocean floor? (what type of system) SONAR What does SONAR stand for? SOund Navigation And Ranging What is the big, flat part of the ocean floor called? Abyssal Plain What is an underwater mountain range called? Mid-Ocean Ridge What is the feature formed on the bottom of the ocean floor when one plate goes under another plate? Trench What is the part of the ocean that is the boundary between continental crust and oceanic crust? (where continental crust “becomes considered” oceanic crust) Continental slope What is an underwater volcano called? Seamount What are the three most common gases dissolved in the ocean water? Nitrogen, Oxygen, and Carbon Dioxide Where is the highest salinity ocean water? At the equator What is the zone of ocean water where the temperature drops drastically from warm to cold? Thermocline What are the two things that affect density? Salinity and Temperature Ocean water has the color it does because of its ability to _______________ . Reflect light What is a steady movement of water in one direction called? Current What is the driving force of ocean currents? Wind What are the three things that affect currents? Wind, rotation of Earth, shape of continents What is the name of the effect of the currents that occurs because of Earth’s rotation? Coriolis Effect Where do warm currents flow? AWAY FROM the equator Where is the crest of a wave? At the top Where is the trough of a wave? At the bottom What is it called when water hits the shore and is carried back to the deep ocean by an irregular current? Undertow What is the swift movement of water caused by the return of water to the ocean through channels in a sandbar? Rip current What are the daily changes in the level of the ocean surface? Tides Gravitational pull is strongest on which side of the earth? The side facing the moon What is the difference between the levels of the high and low tides at specific locations? Tidal range What kind of tide occurs during the new and full moon? (when the sun, moon and earth are aligned) Spring tides What kind of tide produces the smallest tidal range? Neap tides Which direction does a flood tide flow? TOWARD the shore This concludes today’s review activity. Have fun studying!!