原版英语RAZ 教案N57-Earth's Water (3).pdf

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1、Visit www.readinga- for thousands of books and materials.Earths WaterA Reading AZ Level N Leveled BookWord Count:600Writing Write a speech telling your classmates why it is important to take care of Earths water.Use the information from the book to help you.Present your speech to your class.Science

2、and ArtDraw and label a picture showing water in its three different states:liquid,solid,and gas.Include some vocabulary words from the book in your picture.Connectionswww.readinga-LEVELED BOOK NWritten by Katherine ScraperHKNwww.readinga-Earths WaterWritten by Katherine ScraperWhy is water importan

3、t?Focus QuestionEarths WaterLevel N Leveled Book Learning AZWritten by Katherine ScraperAll rights reserved.www.readinga-Photo Credits:Front cover,title page,pages 3,4(all),5,6(all),10,11,13,14(all):ArtToday;page 7:Learning A-Z;page 8:Marcus Miranda/D;page 9:Guillaume Dargaud;pages 12,15(all):Jupite

4、rimages Corporationconcentratedgasglaciersgroundwater invisibleliquid precipitationsolidwater pollutionWords to KnowCorrelationLEVEL NM2028Fountas&PinnellReading RecoveryDRA3Table of ContentsWater Everywhere .4Different Forms of Water .7Changing Water .11Water Is Important .14Glossary .16Earths Wate

5、r Level N4Water EverywhereWater fills oceans,lakes,and ponds,and it flows in rivers,streams,and underground.It is even in the air.Frozen water is found on some parts of Earth as snow and ice.3Table of ContentsWater Everywhere .4Different Forms of Water .7Changing Water .11Water Is Important .14Gloss

6、ary .16Earths Water Level N4Water EverywhereWater fills oceans,lakes,and ponds,and it flows in rivers,streams,and underground.It is even in the air.Frozen water is found on some parts of Earth as snow and ice.5Water covers over two-thirds of Earths surface.Salt water in the oceans makes up most of E

7、arths water.Earth has much less fresh water.Many plants and animals need fresh water to survive.The dark parts in this picture of Earth are water.Earths Water Level N6Some of this fresh water is aboveground,while other fresh water is groundwater underneath Earths surface.What are some ways you use E

8、arths water?5Water covers over two-thirds of Earths surface.Salt water in the oceans makes up most of Earths water.Earth has much less fresh water.Many plants and animals need fresh water to survive.The dark parts in this picture of Earth are water.Earths Water Level N6Some of this fresh water is ab

9、oveground,while other fresh water is groundwater underneath Earths surface.What are some ways you use Earths water?7Different Forms of WaterLiquid water is the most common state of water on Earth.When you pour liquid water into a container,it takes the shape of that container.Liquid water is always

10、moving,even if you cant see it move.Water moves in rivers and streams due to currentsthe constant flow of moving water.Lakes and ponds are standing bodies of water.The liquid water in them moves slowly.Surface and underwater currents cause ocean water to move,with waves forming and crashing.Winds,th

11、e Moon,and the Sun affect the strength of ocean currents.Each of these containers holds four cups of water.Earths Water Level N8Not all water is liquid.When liquid water gets very cold,it freezes and forms ice.Ice is another state of watersolid water.Ice can float on liquid water.People form ice int

12、o different shapes.Youve probably made ice cubes to cool down a drink.Artists even carve ice sculptures.Ice can be carved into many shapes.7Different Forms of WaterLiquid water is the most common state of water on Earth.When you pour liquid water into a container,it takes the shape of that container

13、.Liquid water is always moving,even if you cant see it move.Water moves in rivers and streams due to currentsthe constant flow of moving water.Lakes and ponds are standing bodies of water.The liquid water in them moves slowly.Surface and underwater currents cause ocean water to move,with waves formi

14、ng and crashing.Winds,the Moon,and the Sun affect the strength of ocean currents.Each of these containers holds four cups of water.Earths Water Level N8Not all water is liquid.When liquid water gets very cold,it freezes and forms ice.Ice is another state of watersolid water.Ice can float on liquid w

15、ater.People form ice into different shapes.Youve probably made ice cubes to cool down a drink.Artists even carve ice sculptures.Ice can be carved into many shapes.9Much of Earths frozen water is at the North and South Poles,the coldest areas on Earth.The most common places to find glaciers are at th

16、e poles.These huge masses of ice store much of Earths fresh water.Sheets of ice cover Earths South Pole.Earths Water Level N10Some of Earths water is in an invisible state as a gas called water vapor.While its always invisible,water vapor is all around us.When it is hot outside,more water vapor fill

17、s the air than when it is cold outside.Humidity is the amount of water vapor in the air.On hot and humid days,the air feels thick with lots of water vapor concentrated in the air.What states of water can you see in this picture?9Much of Earths frozen water is at the North and South Poles,the coldest

18、 areas on Earth.The most common places to find glaciers are at the poles.These huge masses of ice store much of Earths fresh water.Sheets of ice cover Earths South Pole.Earths Water Level N10Some of Earths water is in an invisible state as a gas called water vapor.While its always invisible,water va

19、por is all around us.When it is hot outside,more water vapor fills the air than when it is cold outside.Humidity is the amount of water vapor in the air.On hot and humid days,the air feels thick with lots of water vapor concentrated in the air.What states of water can you see in this picture?11Chang

20、ing WaterEarths water is always changing from one state to another.When frozen water is heated,it melts and becomes liquid water.When liquid water is cooled,it freezes and becomes ice.The sunlight heats up the snow,and the snowman melts.Earths Water Level N12Liquid water can become a gas,too.Have yo

21、u ever seen a puddle of water dry up on a hot day?Energy from the Sun changed the liquid to a gas in a process called evaporation.Evaporation happens every day as the Sun beats down on Earths bodies of water.When water vapor in the air cools down,it changes from a gas to a liquid.This process is cal

22、led condensation.Energy from the Sun causes water to evaporate.11Changing WaterEarths water is always changing from one state to another.When frozen water is heated,it melts and becomes liquid water.When liquid water is cooled,it freezes and becomes ice.The sunlight heats up the snow,and the snowman

23、 melts.Earths Water Level N12Liquid water can become a gas,too.Have you ever seen a puddle of water dry up on a hot day?Energy from the Sun changed the liquid to a gas in a process called evaporation.Evaporation happens every day as the Sun beats down on Earths bodies of water.When water vapor in th

24、e air cools down,it changes from a gas to a liquid.This process is called condensation.Energy from the Sun causes water to evaporate.13Clouds are made up of tiny drops of water formed by condensation.The tiny drops stick together,creating larger,heavier drops.If the drops become large enough,they fa

25、ll as rain,snow,or another type of precipitation.Some rain and melted snow soak into the ground,becoming groundwater.Precipitation and groundwater fill rivers,lakes,streams,and ponds.Water evaporates from bodies of water around the world.Later,it condenses and falls in other places on Earth.Clouds d

26、rop water on the desert as rain.Earths Water Level N14Water Is ImportantRain keeps plants alive and allows them to grow.People and other animals need water to survive.We also use it for other purposes,such as fighting fires.13Clouds are made up of tiny drops of water formed by condensation.The tiny

27、drops stick together,creating larger,heavier drops.If the drops become large enough,they fall as rain,snow,or another type of precipitation.Some rain and melted snow soak into the ground,becoming groundwater.Precipitation and groundwater fill rivers,lakes,streams,and ponds.Water evaporates from bodi

28、es of water around the world.Later,it condenses and falls in other places on Earth.Clouds drop water on the desert as rain.Earths Water Level N14Water Is ImportantRain keeps plants alive and allows them to grow.People and other animals need water to survive.We also use it for other purposes,such as

29、fighting fires.15It is important to take care of Earths water.People are the main cause of water pollution,although sometimes it occurs naturally.Littering and dumping trash lead to dirty and unusable water.Polluted water makes people,plants,and animals sick.Would you want to drink and play in pollu

30、ted water?pollutednot pollutedEarths Water Level N16Glossaryconcentrated(v.)gathered or collected together (p.10)gas(n.)matter that can freely change shape and size;often it cant be seen(p.10)glaciers(n.)large amounts of ice and snow that are found year-round and that slowly move downhill(p.9)ground

31、water(n.)water held underground in soil or rock,often feeding springs and wells(p.6)invisible(adj.)unable to be seen(p.10)liquid(adj.)able to flow and change shape while keeping its size(p.7)precipitation(n.)water that falls to the ground,such as hail,sleet,rain,or snow(p.13)solid(adj.)having a firm

32、 or hard form or shape(p.8)water pollution(n.)the presence of dirty or harmful materials in Earths bodies of water(p.15)15It is important to take care of Earths water.People are the main cause of water pollution,although sometimes it occurs naturally.Littering and dumping trash lead to dirty and unu

33、sable water.Polluted water makes people,plants,and animals sick.Would you want to drink and play in polluted water?pollutednot pollutedEarths Water Level N16Glossaryconcentrated(v.)gathered or collected together (p.10)gas(n.)matter that can freely change shape and size;often it cant be seen(p.10)gla

34、ciers(n.)large amounts of ice and snow that are found year-round and that slowly move downhill(p.9)groundwater(n.)water held underground in soil or rock,often feeding springs and wells(p.6)invisible(adj.)unable to be seen(p.10)liquid(adj.)able to flow and change shape while keeping its size(p.7)prec

35、ipitation(n.)water that falls to the ground,such as hail,sleet,rain,or snow(p.13)solid(adj.)having a firm or hard form or shape(p.8)water pollution(n.)the presence of dirty or harmful materials in Earths bodies of water(p.15)www.readinga-Earths WaterWritten by Katherine ScraperWhy is water important

36、?Focus QuestionEarths WaterLevel N Leveled Book Learning AZWritten by Katherine ScraperAll rights reserved.www.readinga-Photo Credits:Front cover,title page,pages 3,4(all),5,6(all),10,11,13,14(all):ArtToday;page 7:Learning A-Z;page 8:Marcus Miranda/D;page 9:Guillaume Dargaud;pages 12,15(all):Jupiter

37、images Corporationconcentratedgasglaciersgroundwater invisibleliquid precipitationsolidwater pollutionWords to KnowCorrelationLEVEL NM2028Fountas&PinnellReading RecoveryDRAVisit www.readinga- for thousands of books and materials.Earths WaterA Reading AZ Level N Leveled BookWord Count:600Writing Writ

38、e a speech telling your classmates why it is important to take care of Earths water.Use the information from the book to help you.Present your speech to your class.Science and ArtDraw and label a picture showing water in its three different states:liquid,solid,and gas.Include some vocabulary words from the book in your picture.Connectionswww.readinga-LEVELED BOOK NWritten by Katherine ScraperHKN