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Unit 2 Review
Unit 2 Review
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Earth Space Science- Unit 2 Review
Flashcards
11 cards
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Practice quiz
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Questions
11
Answers
1
Stars are MOSTLY composed of...
Oxygen
Nitrogen
Hydrogen and Helium
Neon
2
How are distances measured in space?
Light- Years
Kilometers
Yards
Astronomical Unit
3
A star is 1,500 light-years away,how long did it take for light from that star to reach earth?
15 years
150 years
1,500 years
15,000 years
4
Which of the following structures is the largest?
Galaxy
Planet
Universe
Solar System
5
The sun is an example of a...
Blue giant
Main Sequence
Dwarf star
Red giant star
6
How many galaxies are in our universe?
Millions
Billions
Hundreds
Thousands
7
What is a large collection of stars, gas, and dust that is held together by gravity?
Galaxy
Planet
Universe
Solar System
8
What is the correct order of stars from largest to smallest?
Blue, Red, Yellow, Orange
Red, Orange, Yellow, Blue
Red, Yellow, Orange, Blue
Red, Orange, Blue, Yellow
9
What is absolute magnitude(brightness)?
Brightness as seen from Earth
How dim a star is
Brightness of a star from a standard distance
Brightness of a star using a telescope
10
Which star color is the hottest?
Yellow
Red
Blue
White
11
What type of galaxy is the Milky Way galaxy?
Spiral
Elliptical
Lenticular
Irregular
