Vocabulary
Key Concepts
Light and Dark on the Moon
Moon Phases
Lunar Eclipses
100

The border between light and dark on the Moon is called what...?

Terminator

100

Fill in the blank:

"The Moon does not make its own light, the _______ illuminates the moon."

Sun

100

True or False:

The Moon makes it's own light.

FALSE!


BONUS 100 PTS:

Where does the moon get it's light from?

100
Based on the image in the slides,


Name that Moon Phase!

Crescent Moon

100

TRUE OR FALSE:


A lunar eclipse can happen at more than one position?

False.

200

The star that is the main source of light at the center of our solar system is known as what?

The Sun

200

Fill in the blank:

"Light from the sun travels in _______ lines."

Straight

200

Based on the image in the slides,

Which scale is more helpful when figuring out the moon phases on Earth?

Scale A: Not to Scale

200

Based on the image in the slides,


What moon phase would we see from Earth?

Gibbous.


BONUS 100 PTS:

Would it be a waxing or wanning gibbous?

200

What phase must the Moon be in for a Lunar Eclipse to happen?

Full Moon

300

The shapes of the illuminated part of the Moon as it appears from Earth are called what?

Moon Phases

300

True or False:

Even though the moon moves to different positions around Earth, we see the same amounts of the illuminated half of the moon. 

FALSE.

300

Based off of the image on the slides,

Will the total amount of light on the Moon change from Point A to Point B

No, it will stay the same. The moon is always half illuminated from the Sun.

BONUS 100 PTS:

What moon phase would we see from Earth at Point B?

300

Based on the image from the slides,


We currently are seeing a waxing crescent, what moon phase will we see next?

Quarter Moon


BONUS 100 PTS:

Is this a first quarter or third quarter moon?

300

Based on the image from the slides,


Which view correctly shows a Lunar Eclipse?

View B

400

The nearly circular path a smaller object (like the Moon) travels around a larger object (The Earth) is known as...?

Orbit

400

True or False:

Lunar eclipses can only happen when Earth is between the sun and the Moon.

True

400

Based on the image in the slides,

Which diagram shows the correct Top View of our Earth, Moon, and Sun system?

Diagram A


BONUS 100 PTS:

What moon phase would we see from Earth in Diagram A?

400

Based on the image in the slides,


Why does the light part of the Moon appear to get smaller over time?

Between the first photograph and the second photograph, the Moon moved so we see less of the half that faces the sun.

400

Based on the image from the slides,

Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?

Yes, always in Diagram 1 and sometimes in Diagram 3.

500

What is called hen the Moon goes completely dark?

A Lunar Eclipse

500

Fill in the blank:

"It takes about _________ for the Moon to orbit Earth, and for us to see the full pattern of moon phases. This pattern repeats with every orbit of the Moon."

One month.
500

Based off of the image on the slides,

Why does this diagram show that it’s bright on the left half of the Moon?

The diagram is showing that the half of the Moon that is facing the sun is lit by the sun, and the other half is dark.

500

Based on the image in the slides,


Why does the light part of the Moon appear to get larger over time.  

Between the first observation and the second observation, the Moon moved so we are able to see more of the half that faces the sun.

500

Why isn’t there a lunar eclipse every time Earth is in between the sun and the Moon?

There isn’t a lunar eclipse every time Earth is in between the Sun and the Moon because lunar eclipses only happen when Earth blocks sunlight from hitting the Moon. All three objects need to be perfectly aligned. During most orbits, the Moon is either slightly above or below the Earth.

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