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Science Test 4
Oceans
Question | Answer |
---|---|
What are waves? | up and down motion of the ocean caused by wind |
What is a storm surge? | large waves caused by strong, gusty winds |
What do steady winds over the surface of the ocean cause? | surface current |
What happens when salty, dense water mixes with less salty, less dense water? | deep-ocean current |
What are the daily changes in the ocean's water level? | tides |
What causes tides? | gravitational pull of the moon |
What is the water cycle? | constant recycling of liquid to gas and back to liquid |
What is the process of liquid changing into gas? | evaporation |
What is the process of gas changing to a liquid? | condensation |
Water droplets that fall from the clouds form ____. | precipitation |
What is the place where land meets the ocean? | shore zone |
What is the shallow area of the ocean floor called? | continental shelf |
What part of the ocean resembles a steep side of a hill? | continental slope |
What is the large flat area at the bottom of the ocean floor called? | abyssal plain |
What is a deep canyon in the ocean floor called? | trench |
What is the mountain range on the ocean floor? | mid-ocean ridge |
What can form on the ocean floor when one plate slides beneath another? | trench |
What area of the ocean is the richest in resources? | shore zone |
What two factors affect the density of ocean water? | temperature and amount of salt |
What motion describes the way waves move? | up and down |
What is erosion? | carrying of sand and sediment away from the shore |
Why is the gravitational force of the moon on the oceans stronger than the force of the sun? | the moon is closer to Earth |
What is deposition? | dropping or carrying of sand and sediments onto the shore |