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BJU Science 5
Chapter 5 Weather
| Question | Answer |
|---|---|
| Precipitation falls from the _______. | sky |
| Dew and frost are formed from water _______ in the air. | vapor |
| Dew appears when water vapor _______ on the surface of objects. | condenses |
| As the sun warms the earth, some of the water ______ into the atmosphere. | evaporates |
| Water vapor in the atmosphere is called _______. | humidity |
| ________ humidity is the amount of water vapor in the air compared with the amount that the air could hold at that temperature. | Relative |
| Relative humidity is identified as a _______. | percentage |
| The Bible character Gideon sought God's will by observing _____. | dew |
| If the air temperature borders on freezing, a winter storm may have a mixture of freezing rain and _____. | sleet |
| _____ forms when ice crystals in the clouds join together and fall to the earth. | Snow |
| The air between the couds and the earth must be at or below _______ for snow to fall. | freezing |
| The size of snowflakes varies depending on the ______ and the amount of moisture in the air. | temperature |
| As temperature drops, snowflakes become ________. | smaller |
| ______ usually falls during warm weather. | Hail |
| All the water on the earth follows a ________, or repeated path. | cycle |
| Water falls to the earth as _______. | precipitation |
| Some water returns to the atmosphere through ______. | evaporation |
| Most of the water in the air is evaporated _____ water. | ocean |
| When conditions are right, the water in the air changes to droplets and forms clouds through ______. | condensation |
| Water vapor, or water in the air, cools at high _____. | altitudes |
| Water vapor cools around dust particles and forms water droplets or ice _____. | crystals. |
| _____ pulls the larger water drops and ice crystals toward the earth and causes precipitation. | Gravity |
| ____ is any type of moisture that falls from the atmosphere and reaches the ground. | precipitation |
| Rain, sleet, snow, and hail are all types of ________. | precipitation |
| _____ forms when water droplets in the clouds join together to form larger drops. | Rain |
| Raindrops can be big or small. Their sizes are determined by ____ temperatures, winds, the types of _____ fronts, and the types of clouds. | air |
| _____ rain forms an icy glaze that coats objects on the ground, such as tree branches and fences. | Freezing |
| _____ occurs when liquid raindrops fall through air that is below freezing. | Sleet |
| _____ winds are influenced by temperature changes in a small area or place. | Local |
| During the day, both land and water absorb, or take in, heat from the ______. | sunlight |
| At night, the land and water _____ as heat moves toward the atmosphere. | cool |
| Places where water and land meet often have local winds called sea _______ and land _____. | breezes |
| Valley _____ and mountain _____ are types of local ______. | winds |
| Air is less ______ at the higher altitudes of a mountain. | dense |
| Cooler, denser air from the valley moves up the mountain to replace the warmer, rising air. These winds are called ______ winds. | valley |
| ____ winds occur as cooler, denser air flows down the mountain to replace the warmer valley air. | Mountain |
| A wind ____ is an instrument that shows the direction wind is blowing from. | vane. |
| The speed of wind is measured using an _____. | anemometer |
| When two unlike air masses meet, the boundary between the masses is called a _____. | front |
| A cool air mass may push itself under a weaker warm air mass. This is called a ____ front. | cold |
| A _____ front occurs when a warm air mass moves over a slower cool air mass. | warm |
| A cold front usually moves ______ through an area. | quickly |
| A warm front moves ______ and may take several days to leave an area. | slowly |
| When a warm front passes, the following days may have warm, ____ weather. | moist |
| After a cold front passes, the weather is usually cooler and ____ than before. | drier |
| Sometimes air masses push against each other but do not move. When this happens, the boundary is called a ________ front. | stationary |
| A ______ front may stay in the same place for several days. It usually causes cloudy skies and rainy conditions. | stationary |
| Air near the _____ of the earth is warmer. | surface |
| Air at _____ altitudes is cooler. | high |
| Air is ______ near the equator. | warmer |
| Air is ______ at the poles of the earth. | cooler |
| Changes in temperature cause ______. | wind |
| Warmer air ______. | rises |
| Cooler air moves ______ the earth to replace the warmer, rising air. | toward |
| The uneven heating of the earth causes ______ winds. | global |
| _____ winds move in large, circular belts around the earth. | Global |
| Global winds include trade winds, the prevailing westerlies, and the polar easterlies. Winds are identified by the direction from which they ____. | blow |
| The prevailing easterlies, or trade winds, blow from the _____ toward the equator. | east |
| Christopher Columbus used the prevailing easterlies when he sailed to the New World. These winds became known as the ____ winds. | trade |
| The prevailing westerlies blow northward from the ______. | west |
| Near the North Pole and the South Pole, the polar easterlies blow from the _____ and move away from each pole. | east |
| You are surrounded by air that is usually _________. | moving |
| Moving air is called ____. | wind |
| Heat from the sun comes through the ____. | atmosphere |
| A large body of air that has about the same temperature and moisture is called an air _____. | mass |
| An air mass over a cool area will become _____. | cooler |
| An air mass over an ocean will collect ______. | moisture |
| As a cool air mass moves over a hot desert, it will become warmer and ______. | drier |
| The air pressure of a dense, cool air mass is called ____ pressure. | high |
| The air pressure of a light, warm air mass is called ____ pressure. | low |
| Hot air balloons use changes in air _____ to move up and down. | density |
| _____ is the condition of the atmosphere at any moment in time. | Weather |
| The ____ contains many particles and water droplets that affect the weather. | troposphere |
| The ____ is the next layer above the troposphere. | stratosphere |
| The air in the stratosphere continues to get _____ as you travel away from the surface of the earth. | thinner |
| God made the stratosphere to _____ the earth. | protect |
| During the day, the ______ shields the earth from the harmful effects of the sun. | stratosphere |
| At night the stratosphere holds in some of the ______ that the sun provided during the day. | heat |
| The ____ layer is in the upper part of the stratosphere. | ozone |
| Ozone is a form of ______. This layer of gas is one way the stratosphere protects the surface of the earth from the sun's harmful rays. | oxygen |
| Meteors heading toward the earth burn up in the ______. | mesosphere |
| Many of our weather and communication satellites are in the ______. | thermosphere |
| The _______ is the layer of the atmosphere farthest from the earth. This layer gradually fades into space. | exosphere |
| Some people compare the atmosphere to a _____. | greenhouse |
| God designed the _________ to completely surround the earth to protect the earth and provide the proper weather needed for each area of the earth. | atmosphere |
| God designed the atmosphere to have several _____. | layers |
| Together, the layers of the atmosphere protect the earth and give it a controlled ______. | climate |
| The _____ is the layer of the atmosphere that is closes to the earth. | troposphere |
| Mt. Everest, reaches only about halfway into the ______. | troposphere |
| About ____ of the air in the atmosphere is in the troposphere. | half |
| Weather occurs in which layer of the atmosphere? | troposphere |
| The air in the troposphere holds in the radiant heat from the ____ and keeps the surface of the earth warm. | sun |
| At higher altitudes, the air in the troposphere gets thinner and _____. | cooler |
| _____ pulls the atmosphere close to the surface of the earth. | Gravity |
| At any moment there are _______ of pounds of air pressing on you. | thousands |
| The weight of the air pressing on you is called air ______. | pressure |
| As the air is pulled toward the earth by gravity, it causes great _____. | pressure |
| _____ is the measurement of the distance above sea level. | Altitude |
| A ______ is an instrument used to measure air pressure. | baromoter |
| Changes in air pressure may mean that a _____ is coming. | storm |
| The earth has a special covering, called the atmosphere that protects its ______. | surface |
| The thin blanket of gases and dust particles that surrounds the earth is called the _____. | atmosphere |
| The atmosphere lets in the right amount of _____ from the sun and provides the air we breathe. | energy |
| The atmosphere prevents _______ weather differences on the earth. | extreme |
| One part of the atmosphere is _____. _____ is a mixture of nitrogen, oxygen, carbon dioxide, and other gases in the atmosphere. | air |
| Plants need the nitrogen and carbon dioxide in the atmosphere to produce _____. | food |
| People and animals need _____ from the atmosphere to survive. | oxygen |
| _____ meets the needs of all living things. | God |
| Another part of the atmosphere is _____ particles. | dust |
| Dust helps water droplets and ice crystals in the clouds form rain, snow, and other types of ______. | precipitation |
| One of the principles of air flow is called the _______ principle. Scientists use this principle to design airplane wings that give the lift needed for airplanes to fly. | Bernoulli |
| The scientists who study the atmosphere and weather are called _____. | meteorologists |
| Much of the work of a meteorologist involves gathering date, or information about the _____. | atmosphere |
| The Bible tells us that the people of Christ's day had observed that the weather would be fair if the evening sky was red but would be _______ if the morning sky was red. | stormy |
| A weather ______ is a prediction of future weather conditions. | forecast |
| ____ designed and maintains the weather patterns. | God |
| An organization that tracks the weather in the United States is the _____ Weather Service. | National |
| Sometimes the National Weather Service issues a weather _____. This means that the conditions are right for a type of severe weather but that the weather is not currently happening. A _____ alerts people to get ready for the possible storm. | watch |
| Once a storm begins, and people report seeing the storm, the National Weather Service issues a weather _____. | warning |
| A _____ is a funnel-shaped cloud of swirling winds that reaches down to the ground. | tornado |
| Winds that form over the ocean is called a _______. | hurricane |
| A _____ is a snowstorm with strong, freezing winds and blowing snow. | blizzard |
| A heat ___ is a period of time with higher-than-average temperatures. | wave |
| A ____ occurs when a large, swift-moving warm air mass meets a cold air mass. | thunderstorm |
| During a storm, air temperatures change rapidly. This causes strong air movements among the clouds. The resulting friction creates _____. | lightning |
| _____ is a type of static electricity that can move either between clouds or between the clouds and the earth. | lightning |
| Rapid heat change produces vibrations in the air that we hear as _____. | thunder |
| _____ form from condensed water vapor or ice crystals. | Clouds |
| One way clouds are classified is by its ______. Clouds can also be classified according to altitude. | shape |
| There are ____ basic shapes of clouds. | three |
| Clouds can be classified by its shape or by its ______. | altitude |
| The prefix ______ is added to the names of some clouds. This prefix shows that the clouds are part of the middle altitude. They are neither very high nor very low clouds. | alto |
| A form of the word _____ is added to the names of clouds that produce precipitation. | nimbus |
| _____ clouds look like flat blankets are usually the lowest clouds in the sky. | Stratus |
| When a stratus cloud lies on the surface of the earth it is called _____. | fog |
| _______ clouds often produce light rain. | Nimbostratus |
| ____ clouds are large, fluffy-looking clouds with flat bottoms. These clouds mostly form in the middle of the troposphere. | Cumulus |
| The tall, dark clouds that produce thunderstorms are called ______ clouds. | cumulonimbus |
| The thin, curly-looking clouds seen high in the sky are called _____ . clouds. | cirrus |
| Because they are high in the troposphere, ____ clouds are made of ice crystals rather than water droplets. | cirrus |
| Cirrus clouds often indicate that a _____ front is moving into the area. | warm |
Created by:
fargirls