MC Part 1
MC Part 2
MC Part 3
MC Part 4/OE
100
Leticia is a space scientist who made this diagram of the Moon and Earth as seen from above (top view), with sunlight coming from the left, as shown by the arrows. Why does Leticia’s diagram show that it’s brighter on the left half of the Moon?
Because Leticia’s 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.
100
Three students made the diagrams above to show what they think the Moon looks like when it is seen from above (top view). In these diagrams, the sunlight is coming from the left, as shown by the arrows. Which diagram is accurate and why?
Diagram C is accurate because the half of the Moon that is facing the sun is lit by the sun, and the other half is dark.
100
Three student astronomers made the diagrams above to show what they think the Moon looks like when it is seen from above. In these diagrams, the sunlight is coming from the left, as shown by the arrows. Which diagram is accurate and why?
Diagram B is accurate because the half of the Moon that is facing the sun is lit by the sun, and the other half is dark.
100
Three students made the diagrams above to show what they think the Moon looks like when it is seen from above (top view). In these diagrams, the sunlight is coming from the left, as shown by the arrows. Which diagram is accurate and why?
Diagram C is accurate because the half of the Moon that is facing the sun is lit by the sun, and the other half is dark.
200
Tania went outside and made two observations of the Moon that were several days apart. Her observations are shown in the diagram above. The light part of the Moon appeared to get larger over time. Why did this happen?
Between the first observation and the second observation, the Moon moved so that Tania was able to see more of the half that faces the sun.
200
A student astronomer went out and took photographs of the Moon that were several days apart. Images that look like her photographs are shown above. The light part of the Moon appeared to get smaller over time. Why did this happen?
Between the first photograph and the second photograph, the Moon moved so that the student astronomer was able to see less of the half that faces the sun.
200
Astronomers made two observations of the Moon that were several days apart. Their observations are shown in the diagram above. The light part of the Moon appeared to get larger over time. Why did this happen?
Between the first observation and the second observation, the Moon moved so that the astronomers were able to see more of the half that faces the sun.
200
An artist took two photographs of the Moon that were several days apart. Images that look like his photographs are shown above. The light part of the Moon appeared to get smaller over time. Why did this happen?
Between the first photograph and the second photograph, the Moon moved so that the artist could see less of the half that faces the sun.
300
The diagrams above show Earth and the Moon in different positions, as seen from above (top view). Sunlight is coming from the left, but these diagrams do not show what parts of Earth or the Moon are light or dark.
3. Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?
Yes, always in Diagram 2 and sometimes in Diagram 3.
300
The diagrams above show Earth and the Moon in different positions, as seen from above (top view). Sunlight is coming from the left, but these diagrams do not show what parts of Earth or the Moon are light or dark.
Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?
Yes, always in Diagram 2 and sometimes in Diagram 1.
300
The diagrams above show Earth and the Moon in different positions, as seen from above (top view). Sunlight is coming from the left, but these diagrams do not show what parts of Earth or the Moon are light or dark.
Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?
Yes, always in Diagram 3 and sometimes in Diagram 1.
300
The diagrams above show Earth and the Moon in different positions, as seen from above (top view). Sunlight is coming from the left, but these diagrams do not show what parts of Earth or the Moon are light or dark.
Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?
Yes, always in Diagram 3 and sometimes in Diagram 2.
400
How does light travel?
Light travels in straight lines only.
400
Which of these things is true about the Moon?
A)The Moon is always moving around Earth in a circle.The Moon is always moving around Earth in a circle.
B)The Moon is always in the same position in Earth’s sky.The Moon is always in the same position in Earth’s sky.
C)The Moon is always moving in many changing patterns around Earth.The Moon is always moving in many changing patterns around Earth.
D)The Moon is always moving back and forth across Earth’s sky.The Moon is always moving back and forth across Earth’s sky.
A)The Moon is always moving around Earth in a circle.
400
Suki looked up one night and saw a crescent moon.
If Suki looks for the Moon again in one month, what will he see?
Suki will see a crescent moon again.
400
Double Jeopard Question!
Felipe believes that whenever the Moon is in the position that is shown from above (top view) in Diagram A, the Moon always looks completely bright in the view from Earth, as shown in Diagram B.
Is Felipe correct? If he is correct, explain why the Moon always looks bright from Earth in that position, and explain how he should show light on the Moon in Diagram A. If he is incorrect, explain how else the Moon can look when it is in that position.
Felipe is not correct. Sometimes, when Earth is in a straight line between the sun and the Moon, it blocks the sun’s light from hitting the Moon, and there is no light on the Moon at all. His model is not always correct, only sometimes.
500
Shira looked up one night and saw a full moon. How long will it be before she can see a full moon again?
About one month.
500
Someone said that light bent around a corner to reach an object. Is this possible?
No, light travels in straight lines only.
500
The diagram above shows Earth and the Moon from above (top view). Why is there a dotted circle drawn in this diagram?
To show that the Moon is always moving around Earth in a circle.
500
Double Jeopardy Question!
Tanisha says that the Moon looks dark from Earth when the Moon is in two different places: always when it is closest to the sun, as in Top View #1, and always when it is furthest from the sun, as in Top View #2.
Is Tanisha correct? If she is correct, explain why the Moon always looks dark from Earth in both of these positions. If she is incorrect, explain when the Moon looks dark from Earth and how the light on the Moon should look in each of Tanisha’s diagrams.
Tanisha is partly correct. The sun illuminates the half of the Moon that is facing the sun, and from Earth we can see the part of the lit half that is facing us. The Moon always looks dark from Earth in Top View #1 because the illuminated half is facing away from Earth. But in Top View #2, it only looks completely dark sometimes, when Earth is in a straight line between the sun and the Moon so that Earth blocks the sun’s light. In Top View #1, the half of the Moon that is facing the sun should be illuminated. Tanisha’s diagram of Top View #2 is sometimes correct; during an eclipse, the Moon could be completely dark.