Science (4th) Ch. 7 Lesson 2: The Water Cycle vocab/notes

Question 1

when a liquid changes slowly into a gas

Answer 1

evaporation

Question 2

water in the form of a gas

Answer 2

water vapor

Question 3

the process of a gas changing to a liquid

Answer 3

condensation

Question 4

a collection of tiny water droplets or ice crystals in the atmosphere

Answer 4

cloud

Question 5

to change from a liquid to a solid

Answer 5

freeze

Question 6

water in the atmosphere that falls to Earth as rain, snow, hail, or sleet

Answer 6

precipitation

Question 7

the constant water movement of water between Earth’s surface and the atmosphere

Answer 7

water cycle

Question 8

to change state from a solid to a liquid

Answer 8

melt

Question 9

Earth’s water has been recycled for __________ of years.

millions thousands billions

Answer 9

billions

Question 10

What is the energy source that drives the water cycle?

Answer 10

the sun

Question 11

Water moves between ______ and the _______ during the water cycle.

Answer 11

Earth

air

Question 12

What is the process in which water vapor rises into the atmosphere?

Answer 12

evaporation

Question 13

Water vapor is when water is in a _____ state.

Answer 13

gas

Question 14

Put in order the steps of the water cycle:

• The water evaporates and rises as water vapor.
• The droplets grow heavy and fall to Earth.
• The Sun’s energy heats the surface of the water.
• Clouds form from droplets of liquid water.
• As the water vapor rises higher, it cools and condenses.

Answer 14

1. The Sun’s energy heats the surface of the water.
2. The water evaporates and rises as water vapor.
3. As the water vapor rises higher, it cools and condenses.
4. Clouds form from droplets of liquid water.
5. The droplets grow heavy and fall to Earth.

Question 15

What is formed when water vapor cools and condenses on a surface?

Answer 15

dew

Question 16

What are the 3 types of clouds?

Answer 16

1. cumulus
2. stratus
3. cirrus

Question 17

What type of clouds are puffy, white clouds that look like cotton balls?

Answer 17

cumulus clouds

Question 18

What type of clouds form in layers?

Answer 18

stratus clouds

Question 19

What type of clouds are thin, feathery and found very high in the sky?

Answer 19

cirrus clouds

Question 20

Fog is an example of this kind of cloud.

Answer 20

stratus clouds

Question 21

This type of cloud does not produce precipitation.

Answer 21

cirrus clouds