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 percentage of Earth's surface is covered by water?
A) 50%
B) 75%
C) 90%
D) 100%

Question 2. What is the water cycle?
A) The process of moving water from Earth's surface into the atmosphere and then back to the surface again
B) The process of purifying water for drinking
C) The process of producing electricity using the power of flowing water
D) The process of watering crops and lawns

Question 3. How does the water cycle begin?
A) With rain falling from the sky
B) With water vapor changing into droplets of water in the cool air high above the ground
C) With heat from the Sun causing water to evaporate from the surface of lakes, streams, oceans, and plants
D) With water seeping into the ground

Question 4. What are large groups of droplets of water in the atmosphere called?
A) Rain
B) Clouds
C) Water vapor
D) Oceans

Question 5. How does the water cycle end?
A) With the water seeping into the ground
B) With the water evaporating into the atmosphere
C) With the water falling into oceans and lakes, entering rivers, and seeping into the ground
D) With the water being used for drinking, washing, and cooking