The solar system
4 marks · NormalThe universe contains many structures.
Answer the following questions about these structures.
State what a galaxy is.
Name the galaxy in which our solar system is found.
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(a) A galaxy is a large group of millions or billions of stars held together by gravity.
(b) Milky Way
Also accept: Milky Way for b
Common mistakes: Confusing galaxy with solar system
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Marking points
B1 (a) · 2 marks · States a galaxy contains millions or billions of stars (1), held together by gravity (1).
B2 (b) · 2 marks · Correctly names the Milky Way as our galaxy (2); accept correct spelling only.
Worked solution
a) A galaxy is a large group of stars (millions or billions) held together by gravity.
b) Our solar system is found in the Milky Way galaxy.