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 average distance of Mercury from the Sun?
A) 58 million kilometers
B) 4,900 kilometers
C) 48 kilometers per second
D) About half the size of Earth

Question 2. Which of the following is NOT a characteristic of Mercury's surface?
A) Flat plains
B) Long, steep cliffs
C) Pits called craters
D) Smooth, like glass

Question 3. What is the atmosphere like on Mercury?
A) Thick and keeps in heat well
B) Thin and does not keep in heat well
C) Rich in oxygen
D) Made up of a mixture of gases

Question 4. What is the temperature on Mercury during the day?
A) 400°?C
B) -173°?C
C) About the same as Earth's temperature
D) Varies greatly depending on the location

Question 5. On Mercury, is a "day" longer or shorter than a "year"?
A) Longer
B) Shorter
C) About the same length
D) It depends on the location