Front

What does the term 'perpendicular' mean in the context of the Earth-Sun relationship?

Back

It refers to the orientation of Earth's axis being tilted relative to the plane of the ecliptic.

Front

What is the axis of the Earth?

Back

An imaginary pole running through the center of Earth from the north pole to the south pole.

Front

Why does the northern hemisphere experience summer while the southern hemisphere experiences winter?

Back

Earth's tilt positions the northern hemisphere to receive more of the Sun's direct rays.

Front

How long does it take for the Earth to complete one rotation?

Back

24 hours.

Front

How long does it take for the Earth to complete one revolution around the Sun?

Back

365 days.

Front

What is rotation in the context of Earth?

Back

The constant spinning of Earth on its axis.

Front

What is revolution in the context of Earth?

Back

The movement of Earth through space around the Sun.

Front

What is the tilt of Earth's axis?

Back

23.5 degrees from the perpendicular of the plane of the ecliptic.

Front

What causes the seasons on Earth?

Back

The tilt of Earth's axis and its revolution around the Sun.

Front

What is the significance of the plane of the ecliptic?

Back

It is the imaginary plane that extends through Earth's orbit around the Sun.