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Unit 3 Review Solar System and Universe Flashcards | StudBud
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Unit 3 Review Solar System and Universe
Unit 3 Review Solar System and Universe
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#science #5thgrade
Flashcards
10 cards
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Questions
10
Answers
1
Together, a star and all the planets and other objects orbiting it form a(n)
asteroid
solar system
galaxy
comet
2
A chunk of rock or iron that orbits the sun is called an (n)
galaxy
star
asteroid
comet
3
Why are models useful for the study of the solar system?
because models are always accepted by all scientists
because models can be used to describe how things work
because models describe the way things actually are
because models cannot be proven wrong
4
A group of solar systems that are held together by gravity & classified by shape is called a(n)
solar system
comet
galaxy
star
5
What kind of objects make up most of the visible matter in a galaxy?
dust
stars
planets
asteroids
6
What is the main difference between the orbits of the inner and outer planets?
outer planets rotate as they orbit the sun, inner do not
outer planets take longer to orbit the sun than inner do
inner planets have round orbits, outer do not
inner planets travel a greater distance than the outer
7
How does the Milky Way appear in the night sky from Earth?
a large cloudy band of stars spreading across the sky
a faint band of clouds among the stars
a small, very dim group of stars
a large number of stars in a broad, spiral shape
8
How are the stars distributed in an elliptical galaxy?
The center is very dense, and density decreases farther out
stars are spread throughout in bands that look like arms
The stars are evenly distributed through the galaxy.
Stars near the outside, dust clouds in the center
9
A huge ball of very hot, glowing gases in space that can produce its own heat and light.
galaxy
star
asteroid
comet
10
Which of these planets has is very large, has a thick atmosphere, and a low density?
Earth
Mercury
Mars
Saturn
