Sun, Earth, Moon

What is Earth's axis?

• Earth's axis is the imaginary vertical line that separates the eastern and western hemispheres.

• Earth's axis is the imaginary line around which Earth spins

• Earth's axis is the imaginary horizontal line that separates the northern and southern hemispheres

• Earth's axis is the imaginary line around which Earth spins around the Sun

What does Earth's rotation cause?

• eclipses

• seasons

• day and night

• year

What do scientists believe is the cause of Earth's magnetic field?

• They believe Earth's tilted axis along with Earth's rotation generates a magnetic field.

• They believe the Earth's revolution around the Sun generates a magnetic field.

• They believe the movement of material inside Earth's core generates a magnetic field.

• They believe the movement of material inside Earth's core along with Earth's rotation generates a magnetic field

What's the difference between Earth's magnetic north pole and Earth's rotational north pole?

• The magnetic axis is inclined at an angle of 11.5° to the rotational axis.

• There is no difference; they are lined up along the same axis.

• The rotational axis is inclined at an angle of 11.5° to the magnetic axis.

• The magnetic axis is inclined at an angle of 90° to the rotational axis.

When the northern hemisphere experiences summer, it's __________.

• tilted away from the Sun

• closer to the Sun

• lined exactly perpendicular to the Sun

• tilted toward the Sun

The solstice is ______________.

• the seasons

• the point at which the Sun is closest to Earth

• the point at which the Sun reaches its greatest distance north or south of the equator

• the point at which the Sun reaches its greatest distance east or west of the prime meridian

The same side of the Moon always faces Earth __________.

• because the motion of the Moon's revolution around Earth and its rotation on its axis take the same amount of time

• because the motion of Earth's revolution around the Sun and its rotation on its axis take the same amount of time

• because the motion of Earth's revolution around the Sun and the Moon's rotation on its axis take the same amount of time

• because the motion of the Sun through the solar system and Earth's rotation on its axis take the same amount of time.

How many phases of the Moon are there?

• 5

• 6

• 7

• 8

Which phase of the Moon occurs when the moon is between Earth and the Sun?

• full

• new

• waxing gibbous

• waning crescent

What only can occur during a full moon?

• lunar eclipse

• solar eclipse

• waxing crescent

• third quarter moon