Investigation 2 I-Check L1
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by Kate Brody Webb
| 9 Questions
Note from the author:
Foss
1
1
You are in a spaceship directly above the solar system. The Sun is at the center of the system (the black dot in each drawing). Which drawing below best describes the path of Earth’s orbit around the Sun?
Orbit: a curved path of an object around a planet, star, or moon
A
B
C
2
1
What is the name of the force that holds Earth in orbit around the Sun?
rotation
revolution
gravity
distance
3
1
A group of students were having an argument over why the Sun is so much brighter than other
stars we see in the sky. Which student do you think has the best argument?
(Mark the one best answer.)
The Sun is brighter because it is so hot.
All stars are the same distance away, but the Sun is the biggest so it is the brightest.
The Sun appears brightest because it is much closer to Earth than any other star.
4
1
A
B
C
5
1
How long does it take the Moon to orbit Earth?
orbit: make a complete journey around a curved path
(Mark the one best answer.)
About 1 week
About 1 month
About 1 year
6
1
How long does it take the Moon to cycle from full Moon to full Moon?
cycle: a complete set of phases
(Mark the one best answer.)
About 1 week
About 1 month
About 1 year
7
1
Which model best represents Earth’s rotation?
rotation: the action of rotating around an axis or center
A
B
C
D
8
1
Which model best represents Earth’s revolution?
revolution: the movement of an object in a circular or elliptical course around another
A
B
C
D
9
1
Explain why the Sun, the Moon, and stars all appear to move across the sky each day.

Word Bank
Sun Moon Earth rotation revolution gravity
orbit orientation perspective horizon axis space

The Sun, the Moon, and the stars all appear to move across the sky each day because

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