Science Unit C cha4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| a wall of rocks built out into the ocean | jetty
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| up and down movement of surface water | wave
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| repeated rise and fall of the level in the ocean | tide
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| stream of water that flows like a river through the ocean | current
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| self-contained underwater breathing apparatus | scuba
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| area where ocean and land meet | shore
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| small underwater vehicle | submersible
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| rocky point along a shore | headland
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| pool of sea water found along a rocky shoreline | tide pool
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| removal of salt from sea water | desalination
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| sound waves that can be used to map the ocean floor | sonar
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| weight of water pressing on an object | water pressure
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| percent of salt in ocean water | salinity
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| Why do waves form? | wind blows over the surface of the water
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| What does Earth's rotation cause currents to do? | to bend to the right in the Northern Hemisphere and the left in the Southern Hemisphere
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| What causes deep-ocean currents? | differences in water temperature
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| What causes tides? | the pull of gravity of the sun and moon on the earth's waters
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| Which submersible discovered the presence of vents along the mid-Atlantic ridge? | Alvin
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| Which submersible studied the sunken remains of the Titanic | Nautile
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| What does a rip current do? | flows away from the beach
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| When all soft rock is washed away by waves, the rocky point that remains is called a | headland
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| What is used to map the ocean floor? | sonar
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| Why does a tsunami gain strength as it reaches the shore? | friction with the ocean bottom slows the wave as it approaches the shore, causing it to grow
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| Where does salinity of ocean water come from? | minerals weathered from earth's crust
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| How does water in a wave move? | in a circle
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| As you go deeper in the ocean what happens to water pressure? | it becomes greater
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| desalination is | removal of salt from ocean water
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| Name resources that can be found in the ocean | salt, fish, shellfish, sea plants, copper, iron, nickel, cobalt
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| Be familiar with The Cape Hatteras light house and the erosion issues it's gone through. What solution could fix the erosion problem? | The jetties have not helped. The lighthouse might have to be moved.
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| When are tides higher during a full moon or half moon? | neither, explain your answer.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mandygarola
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