Water Cycle
What process happens when liquid water changes into water vapor?
Evaporation
What change of state happens when liquid water becomes a solid?
Freezing
What are clouds made of?
Tiny water droplets and/or ice crystals
What does weather describe?
The condition of the atmosphere at a certain place and time
In a precipitation table, how do you find the month with the most precipitation?
Find the largest number
What process happens when water vapor cools and changes into tiny liquid droplets?
Condensation
What change of state happens when ice becomes liquid water?
Melting
Water vapor rises, cools, and changes into droplets. What begins to form?
Clouds
Name one factor scientists can observe to describe weather.
Temperature, cloud cover, precipitation, or wind
In a precipitation table, how do you find the month with the least precipitation?
Find the smallest number
What is the process called when water falls from clouds as rain, snow, sleet, or hail?
Precipitation
Does evaporation happen when water gains heat or loses heat?
Gains heat
Why does precipitation eventually fall from a cloud?
The droplets or ice particles become too heavy to stay in the cloud.
If you want to know whether precipitation will fall as rain or snow, which weather factor is most important to know?
Temperature
January has 4.7 cm of precipitation and February has 5.9 cm. Which month received more?
February
Plants release water vapor from their leaves through what process?
Transpiration
Water vapor cools and becomes liquid water. What process occurred?
Condensation
What are the four main forms of precipitation?
Rain, snow, sleet, and hail
City A is 90°F and City B is 75°F. Which city is warmer?
City A
May has 13.6 cm of precipitation and October has 12.0 cm. Which month received more?
May
If evaporation completely stopped, what part of the water cycle would eventually stop because clouds would no longer receive new water vapor?
Precipitation
A student wants to demonstrate evaporation. Should the student place liquid water in sunlight or in a freezer?
Place liquid water in sunlight
Frozen precipitation falls through a warm layer and melts, then passes through a cold layer near the ground and freezes again. What form of precipitation is most likely?
Sleet
A city was warmer than another city on all four days of a weather table. What conclusion can you make?
That city had warmer temperatures overall during those four days.
Why should you check every row of a weather or precipitation table before answering a question?
Because you need to compare all the data before choosing the greatest, least, warmer, cloudier, etc.