Earth, Moon, and Sun End-of-Unit Assessment

Front

Why does Leticia’s diagram show that it’s brighter on the left half of the Moon?

Back

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.

Front

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

Back

Yes, always in Diagram 2, but never in Diagrams 1 or 3.

Front

How does light travel?

Back

Light travels in straight lines only.

Front

How long after seeing a full moon will it be visible again?

Back

About one month.

Front

What does the Moon look like from above when sunlight comes from the left?

Back

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.

Front

Which diagram is accurate and why?

Back

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.

Front

If Suki looks for the Moon again in one month, what will he see?

Back

Suki could see either a crescent or a quarter moon; it depends on the time of year.

Front

Why is there a dotted circle drawn in the diagram showing Earth and the Moon from above?

Back

To show that the Moon is always moving around Earth in a circle.

Front

Which diagram accurately shows the Moon from above with sunlight coming from the left?

Back

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.

Front

Why did the light part of the Moon appear to get smaller over time in two photographs taken several days apart?

Back

Between the first photograph and the second photograph, Earth’s shadow moved and was blocking more of the Moon so the artist was able to see less of it.