Oceans: salinity, waves, tides, and currents

Front

What is the largest ocean on Earth?

Back

Pacific Ocean

Front

What are the two types of ocean tides?

Back

high tide and low tide

Front

What creates ocean waves?

Back

wind blowing across the surface of the water

Front

About how much of the Earth is covered with water?

Back

70%

Front

Which term describes the amount of salt in the water?

Back

salinity

Front

What is salinity?

Back

The amount of salt dissolved in water.

Front

What is a tide?

Back

The rise and fall of sea levels caused by the gravitational forces of the moon and sun.

Front

What is a current?

Back

A continuous, directed movement of seawater generated by various forces.

Front

What is the difference between high tide and low tide?

Back

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

Front

What causes ocean currents?

Back

Wind, the Earth's rotation, and differences in water temperature and salinity.