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science unit c ch4a

5th grade science unit c chapter 4 concepts

QuestionAnswer
Waves form because wind blows over the surface of the water
Earth's rotation causes ocean currents to bend to the right in the Northern Hemisphere.
Differences in __________________ cause deep ocean currents. water temperature
Tides are caused by Earth's rotation and the gravitational pull of the moon and sun.
Scientists discovered the presence of vents along the mid-Atlantic ridge by using the submersible _________________. Alvin
A rip current _____________________________. flows away from the beach.
A headland may be all that remains when ___________________. soft rock erodes.
Sonar is used to _________________. measure the depth of the ocean.
When a submarine explores the ocean bottom, what type of currents affect it? Deep ocean currents
Why does a tsunami pass unnoticed under ships but destroy everything when it reaches the shore? Increased fricition with the ocean bottom decreases the speed of the wave causing it to grow.
The salinity of the ocean water comes from _________________. minerals weathered from Earth's crust.
Water in a wave moves ______________. in a circle.
The deeper you go in an ocean, _______________ the pressure becomes. the greater
Resources such as __________ can be found in the ocean. salt
Because of erosion, a rocky beach may become _______________. A sandy beach
Created by: 529388526
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