Seasons, Tides and Gravity CBA Review

Front

What is a tide?

Back

A tide is the regular rise and fall of sea levels caused by the gravitational forces of the moon and the sun.

Front

What causes high and low tides?

Back

High and low tides are caused by the gravitational pull of the moon and the sun on Earth's oceans.

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 the highest high tides and the lowest low tides.

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 tides occur?

Back

Tides typically occur twice a day, with two high tides and two low tides.

Front

What is the role of the moon in tides?

Back

The moon's gravitational pull is the primary force that causes tides on Earth, as it is much closer to Earth than the sun.

Front

What is the axis of the Earth?

Back

The axis is the imaginary line that runs through the center of the Earth, around which the Earth rotates.

Front

What is the equator?

Back

The equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres.

Front

What season is it in the Southern Hemisphere when it is summer in the Northern Hemisphere?

Back

It is winter in the Southern Hemisphere when it is summer in the Northern Hemisphere.

Front

What is the difference between the Northern and Southern Hemispheres?

Back

The Northern Hemisphere is the half of the Earth that is north of the equator, while the Southern Hemisphere is the half that is south of the equator.