Ocean Tides

Front

What are ocean tides?

Back

Ocean tides are the regular rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun on Earth.

Front

How many high and low tides occur in one day?

Back

2 high tides and 2 low tides.

Front

What causes tides on Earth?

Back

Tides are primarily caused by the gravitational pull of the Moon and the Sun on Earth's oceans.

Front

Why does the Moon have a greater influence on Earth tides than the Sun?

Back

The Moon is closer to the Earth.

Front

What is a spring tide?

Back

A spring tide is a tide that occurs when the Sun, Moon, and Earth are aligned, resulting in higher high tides and lower low tides.

Front

How often do spring tides occur?

Back

Spring tides occur approximately every two weeks.

Front

What is a neap tide?

Back

A neap tide is a tide that occurs when the Sun and Moon are at right angles to each other, resulting in lower high tides and higher low tides.

Front

How often do neap tides occur?

Back

Neap tides occur approximately every two weeks, alternating with spring tides.

Front

What phase of the moon is associated with spring tides?

Back

Spring tides occur during the new moon and full moon phases.

Front

What phase of the moon is associated with neap tides?

Back

Neap tides occur during the first quarter and third quarter phases of the moon.