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3
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Water can be salt or ___________.
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4
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the up and down movement on the surface of the water
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5
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the cause of most waves and surface currents
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7
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water changing into a gas or water vapor
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8
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the rise and fall of the water level of the ocean
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9
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any moisture that falls from the air and reaches the ground
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10
|
How many high tides and low tides happen each day?
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11
|
water vapor changing into water to form clouds
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12
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largest and deepest ocean
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14
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the usual weather of an area over a long period of time
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15
|
fresh water carries nutrients and __________________ to the ocean.
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16
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the movement of water from the earth to the air and back to earth
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18
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Some surface currents are caused by _________________ changes.
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