Front

What causes tides?

Back

Tides are caused mainly by the Moon’s gravitational pull.

Front

What is the role of gravity in tides?

Back

Gravity is the force that pulls water towards the Moon and the Sun, creating tides.

Front

Which season occurs in the Northern Hemisphere during Position 4?

Back

Fall.

Front

What is the tilt of the Earth's axis?

Back

The Earth's axis is tilted 23.5 degrees off center.

Front

Which season occurs in the Northern Hemisphere during Position 3?

Back

Summer.

Front

What are the two main types of tides?

Back

Spring tides and neap tides.

Front

What is a spring tide?

Back

A spring tide is a tide with the greatest difference between high and low water, occurring during the full moon and new moon.

Front

What is a neap tide?

Back

A neap tide is a tide with the least difference between high and low water, occurring during the first and third quarters of the moon.

Front

How do the Sun and Moon affect tides?

Back

The gravitational pull of the Moon has a stronger effect on tides than the Sun, but the Sun's gravity also contributes.

Front

What is the equinox?

Back

An equinox is a time when day and night are of approximately equal length, occurring in spring and fall.