Tides

Front

What causes tides?

Back

Gravity is the main force that causes tides.

Front

What happens as the moon revolves around the Earth?

Back

The water follows the motion of the moon, causing high tides and low tides.

Front

How many low tides and high tides occur in a day?

Back

There are 2 low tides and 2 high tides in a day.

Front

What follows the movement of the moon?

Back

The tidal bulge follows the movement of the moon.

Front

What are daily changes in ocean water called?

Back

Tides are the daily changes in ocean water.

Front

What is a tidal bulge?

Back

A tidal bulge is the rise in sea level caused by the gravitational pull of the moon and sun.

Front

What are spring tides?

Back

Spring tides are the highest high tides and the lowest low tides that occur when the sun, moon, and Earth are aligned.

Front

What are neap tides?

Back

Neap tides are the lower high tides and higher low tides that occur when the sun and moon are at right angles to each other.

Front

How does the sun affect tides?

Back

The sun's gravity also affects tides, but its effect is less than that of the moon.

Front

What is the difference between high tide and low tide?

Back

High tide is when the water level is at its highest, while low tide is when the water level is at its lowest.