Glencoe Earth Science

Chapter 24: The Solar System

Section 1 Self-Check Quiz-Eng.

1
Who developed the sun-centered model of the solar system?
A)Nicholas Copernicus
B)Galileo Galilei
C)Johannes Kepler
D)Clyde Tombaugh
2
How many planets are in our solar system?
A)eight
B)ten
C)unknown
D)nine
3
What caused the dense cloud scientists hypothesize created our solar system to increase in temperature as it condensed?
A)increasing mass
B)increasing speed
C)increasing friction
D)increasing density
4
When atoms combine to form heavier atoms, _________ occurs.
A)fission
B)friction
C)fusion
D)refraction
5
What happened to the dust and gas that did not contribute to forming the Sun?
A)It was lost forever.
B)It created the planets.
C)It created other stars.
D)It was all burned up by the Sun.
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