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8th Science
Chapter 8, CC 3, A Beka Book
| Term | Definition |
|---|---|
| Water cycle | The movement of water form the earth's surface, into the air, and back to the surface |
| The water cycle is the mechanism that God designed to water the earth. | :)<3:) |
| Rain | Drops of liquid water falling from clouds to the air |
| The most common form of precipitation is ___. | rain |
| To meteorologists, the term ___ refers to precipitation consisting of drops of water larger than .5 millimeters in diameter. These drops are called ___. | rain, raindrops |
| Snowflakes | Grown ice crystals |
| Bergeron Process | Cold cloud process; helps meteorologist understand why snow can fall on a mountain slope while rain falls on an adjacent valley |
| Collision-coalescence process | In clouds with temperatures above freezing, such as the Tropics, rain seems to form by this process |
| Drizzle | Any liquid precipitation less that .5 millimeters in diameter |
| Freezing rain | This phenomenon occurs when supercoooled raindrops touch a freezing surface and turn into ice |
| A storm of freezing rain | Ice storm |
| Ice pellets | Tiny balls of ice |
| Sleet | Precipitation of ice pellets |
| Snow | Consists of snow flakes that fall to the ground |
| Dendrite | The most familiar snowflake shape |
| Light snow = visibility of over __ mile. Moderate snow = visibility between __ and __ mile. Heavy snow = visibility of less than __ mile. | 1/2; 1/4,1/2; 1/4 |
| Flurries | Brief period of light snowfall that result in little or no accumulation |
| Snow squall | A brief but intense snowfall |
| Heavy snowfall | Accumulates 4 inches in 12 hours or 6 inches in 24 hours |
| Blizzard | Occurs when heavy snow and winds of at least 35 miles per hour prevail for three hours |
| Whiteout | Visibility of almost zero |
| A layered ball of ice | Hailstone |
| Hail | Consists of layered balls of ice that form in strong thunderstorms which occur most often in the spring and summer |
| A hailstone's layers may take the form of a transparent ice called ___ or a milky ice called __. | glaze, rime |
| When an area receives abnormally low precipitation over a relatively long period, causing a water shortage that affects the people, crops, and environment, the area is having a ___. | drought |
| A(n) ___ ___ is defined by comparing an area's current precipitation with the area's typical precipitation and by analyzing how long the dry period lasts. | meteorological drought |
| A(n) ___ ___usually occurs when precipitation cannot supply enough moisture to the ground to support an area's crops. | agricultural drought |
| A(n) ___ ___ occurs when a meteorological drought affects and area's groundwater, streams, lakes, and reservoirs. | hydrological drought |
| When meteorological, agricultural, or hydrological droughts occur, they may produce a ___ ___. | Socioeconomic drought (based on the water shortage's effect on people) |
Created by:
nelsonclan
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