1. Directions

You will read passages on the topic and then answer questions about them. You may find vocabulary at the end of the test. Read the questions carefully before choosing the correct answers.

2. Questions of the test

Question 1. What is the solar system made up of?
A) The Sun and everything that orbits it
B) The eight planets and their moons
C) The Milky Way galaxy
D) All of the above

Question 2. How often does the solar system orbit around the center of the Milky Way galaxy?
A) Once every 100 million years
B) Once every 200 million years
C) Once every 225 million years
D) Once every 250 million years

Question 3. What is the Sun made of?
A) Hydrogen and helium gases
B) Water and oxygen
C) Carbon and nitrogen
D) Iron and gold

Question 4. What do living things on Earth depend on from the Sun?
A) Its size and distance from Earth
B) Its temperature and makeup
C) Its light and heat
D) Its radiation and energy

Question 5. How many planets are there in the solar system?
A) 8
B) 9
C) 10
D) 11