Download Weather and water review answer key

Water and Weather Notes/Review
1.
Explain the Water Cycle. Be sure to name the three stages and what happens at each.
A continual process in which water goes through 3 stages, evaporation, condensation, and
precipitation. The sun warms the water and it evaporates into the atmosphere. Water
Vapor rises into the atmosphere is cools and condenses (condensation) forming a cloud.
When the cloud gets too much water and can’t hold it any longer it precipitates back to
earth.
2. Explain the purpose of each weather instrument.
a. Rain Gauge Measures the amount of rain that falls in a specific area
b. BarometerMeasures the amount of air pressure in an area
c. AnemometerMeasures the wind speed in an area
d. Wind Vane Measures the wind direction in an area
e. ThermometerMeasures the temperature in an area
3. What is the freezing point of water? 32 degrees F, 0 degrees C
4. What is the boiling point of water? 212 degrees F, 100 degrees C
5. What causes water to change from a solid to a liquid or a gas? heat
6. What are the types of precipitation that we studied? Rain, sleet, hail, snow
7. How are clouds formed? Air rises (evaporates) into the atmosphere and as it climbs higher it cools
(condensation) into water droplets that form clouds
8. What role does the sun and bodies of water play in the water cycle? Why are they important?
The sun warms the water helping it to evaporate from different bodies of water. The bodies of
water collect the water after it precipitates (collection). Without the sun and water there
wouldn’t be evaporation.
9. What is the difference between weather and climate?
Climate is what you expect, weather is what you get.
10. Describe what happens with each type of precipitation. Here are some descriptions…
a. This form of precipitation leaves the cloud as a liquid, then goes through a cross section of
the atmosphere that’s really cold and freezes into ice pellets. This describes sleet
b. This form of precipitation hits the ground as liquid water. This describes rain
c. This form of precipitation begins as ice crystals that form in a cloud and stay that way
until they hit the earth. This describes snow
d. This form of precipitation gets bounced back and forth in the clouds, and then finally
leaves the cloud once the air is too heavy for the updrafts to carry them in the form of a
solid. This describes hail
e.
This form of precipitation falls as water, but turns into ice after hitting a surface.
Freezing rain
11. What are the three states that water moves through? Solid, liquid, gas
12. A Stationary Front forms when either a cold or warm front stops moving. Clouds and
precipitation may form at these fronts.
13. An area of High air pressure usually brings fair weather.
14. A cold air mass advances towards a warm air mass at a Cold Front. This is when strong storms
and thunderstorms can occur. Snow can occur in colder weather as well. When the front passes,
the temperature cools
15. A front is a place where different air masses meet.
16. Climate is the average type of weather that occurs in a place over a long period of time.
17. An area of low air pressure usually brings storms.
18. At a warm front, a warm air mass advances towards a colder air mass. Sheets of gray clouds
form at these fronts. They also bring rain. After this front passes, the temperature rises.
19. Weather is the condition of the atmosphere at a certain time and place.
20. An air mass is a large volume of air with the same temperature and humidity throughout. There
are four basic types: cold and dry, cold and humid, warm and dry, and warm and humid.
Weather and Water Understandings (overall concepts that you have learned)

The water cycle involves liquid water being evaporated, water vapor condensing to form rain or
snow in the clouds which falls to the earth as precipitation.

Water can evaporate from plants, animals, puddles and the ground in addition to bodies of water.

Bubbles that form and rise when water is boiling consists of steam (or water vapor).

The gas escaping from boiling water is water vapor. When this vapor condenses in the air it is
visible as tiny water droplets.

Water left in an open container evaporates, changing from liquid to gas.

Condensation is water vapor in the air, which cools sufficiently to become a liquid. This usually
happens when the water vapor comes in contact with a (cool) surface.

Rain begins to fall when water drops in the cloud are too heavy to remain airborne.

Clouds move when wind blows them.

Thunder and lightning are the visible and auditory effects of a massive charge transfer between
clouds.