Astronomy Unit Review

Astronomy Unit Review Part 2

Learning Target: I can show what I have learned in this unit by answering as many questions correctly as possible.

Multiple Choice

What are the changing shapes of the moon called?

• changes

• changing tides

• phases

• growing

Multiple Choice

The diagram shows the phases of the Moon as it revolves around Earth. Based on the diagram, what is true about the Moon as it revolves around the Earth?

• The Moon has its own light.

• The Moon appears to change shape.

• The Moon shines due to light coming from Earth.

• The Moon is visible from Earth during all of its phases.

It’s Just a Phase

●The revolution of the Moon
around the Earth makes the
moon appear as if it is changing
shape in the sky.

●Moon Phases are produced by the
alignment of the Moon and the
Sun in the sky. They depend on
how much of the illuminated
side of the Moon is visible from
earth.

●It depends on the moon’s
location. It changes everyday!

Multiple Choice

What is the phase where the side of the Moon facing the Earth appears dark?

• New Moon

• Quarter Moon

• Full Moon

• Crescent

New Moon

The portion of the moon we
see from Earth is completely

dark.

A New Moon occurs when the
lit half of the moon is facing

away from Earth.

Multiple Choice

The side of the Moon facing Earth appears complete lit.

• New Moon

• Full Moon

• Quarter Moon

• Crescent Moon

Full Moon

​A Full Moon is when the entire lit half of the Moon is facing Earth.

The moon appears as a full circle.

​

Multiple Choice

The side of the Moon facing Earth appears half lit.

• New Moon

• Full Moon

• Quarter Moon

• Crescent Moon

​Quarter Moon

​The moon appears as a half lit circle with either the left or right half lit.

Multiple Choice

There is a Full Moon on November 24th. When will the next Full Moon most likely be?

• January 30

• December 1

• December 15

• December 24

​Let's talk about the Lunar Cycle!

• The rays of light from the Sun reflect off of the Moon's surface, causing it to appear lit up.

• We see the Moon from Earth as it orbits or revolves us.

• It takes 29.5 days for the Moon to complete its lunar cycle (one revolution).

Multiple Choice

The length of a tree's shadow is the shortest that it will be all day. What time of day is it?

• morning

• afternoon

• Noon

• 7:00 pm

Multiple Choice

What times of day are shadows the longest?

• sunrise/sunset

• morning/noon

• noon/afternoon

• midnight

Shadows

Morning - The Sun appears low in the sky (in the East), so objects cast long shadows.

Noon - The Sun is overhead and causes objects to cast short shadows or no shadows at all.

Afternoon - The Sun appears low in the sky (in the West), so objects cast long shadows.

Multiple Choice

What causes day/night to occur?

• Earth's tilt

• Earth's revolution around the Sun

• Earth's rotation about its axis

• The Moon's revolution around the Earth.

​Rotation

• The Earth is like a ballerina.

• It has an invisible axis that it rotates on.

• As it rotates, day and night occur based off of which side of Earth is facing the sun.

Multiple Choice

How long does it take Earth to complete 1 rotation about its axis?

• 24 hours

• 365 days

• 29.5 days

• 80 days

Multiple Choice

How long does it take Earth to complete 1 revolution/orbit around the Sun?

• 24 hours

• 365 days

• 29.5 days

• 80 days

Multiple Choice

When Earth rotates, the part of Earth facing the Sun is experiencing ________.

• summer

• day

• night

• winter

Multiple Choice

What causes seasons to occur?

• Earth's titled axis and its revolution about the Sun.

• Only Earth's revolution around the Sun.

• Earth's rotation about its axis.

• The Moon's revolution around the Earth.

Multiple Choice

The N. Hemisphere is tilted towards the Sun and receives more direct sunlight. What season are they experiencing?

• spring

• fall

• winter

• summer

Multiple Choice

The N. Hemisphere is tilted neither towards or away from the Sun (equal sunlight). What season are they experiencing?

• spring or fall

• winter

• summer

• none of these

Multiple Choice

The N. Hemisphere is tilted away from the Sun and receives less direct sunlight. What season are they experiencing?

• spring

• fall

• winter

• summer