原版英语RAZ 教案K51-Model Rockets (3).pdf

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1、www.readinga-Visit www.readinga- for thousands of books and materials.LEVELED BOOK KWritten by Joanne MatternModel RocketsA Reading AZ Level K Leveled BookWord Count:407Model Rocketswww.readinga-nose coneengine mountrocket engineengine hookfinsrecovery waddinglaunch lugparachutebody tubeshock cordsh

2、ock cord mountshroud linesModel RocketsWritten by Joanne MatternModel RocketsLevel K Leveled Book Learning AZWritten by Joanne MatternAll rights reserved.www.readinga-CorrelationLEVEL KJ1718Fountas&PinnellReading RecoveryDRAPhoto Credits:Front cover;pages 10,15:Sarah Cebulski/Learning AZ;back cover:

3、Michael Doolittle/Alamy;page 3:Drew Myers/Corbis;page 4:Dale,Greg/National Geographic Creative;page 5(left):SuperStock/SuperStock;page 5(right):SuperStock/Corbis;page 6(top):ZUMA Press,Inc/Alamy;page 6(bottom):Mark Richard/PhotoEdit;page 7(main):Tony Freeman/PhotoEdit;page 7(inset):Allison Diaz/MCT/

4、Landov;page 9:Fancy Collection/SuperStock;pages 11,13(bottom):Craig Frederick/Learning AZ;page 12:Tim Wynkoop/Express-Times/Landov;pages 13(top),14(both):Brian Cahn/ZUMA Press/CorbisPage 3:A father and daughter work together to build a large model rocket.Page 4:A father and son watch a model rocket

5、blast off from a launch pad.34Table of ContentsLiftoff!.4The History of Rockets .5Parts of a Model Rocket .6At the Launchpad .10Clubs and Competitions .12Glossary .16Liftoff!Three .two .one .liftoff!A model rocket shoots into the sky.The rocket can fly up to 1,500 feet (457 m)high!Watching these sma

6、ll rockets fly can be fun and exciting.Model rockets arent just for fun,though.They also teach us about science and space.Model Rockets Level K34Table of ContentsLiftoff!.4The History of Rockets .5Parts of a Model Rocket .6At the Launchpad .10Clubs and Competitions .12Glossary .16Liftoff!Three .two

7、.one .liftoff!A model rocket shoots into the sky.The rocket can fly up to 1,500 feet (457 m)high!Watching these small rockets fly can be fun and exciting.Model rockets arent just for fun,though.They also teach us about science and space.Model Rockets Level K56The History of RocketsPeople in China in

8、vented rockets about eight hundred years ago.They filled tubes with gunpowder and shot them at their enemies.Later,scientists built rockets that could go into space.Starting in the 1950s,people began building model rockets for fun.Parts of a Model RocketA model rocket kit comes with all the parts a

9、rocket needs.Kids have been building and painting model rockets for decades.The pieces of a model rocket need to be carefully put together(top).A finished rocket is ready to fly(bottom).Model Rockets Level K56The History of RocketsPeople in China invented rockets about eight hundred years ago.They f

10、illed tubes with gunpowder and shot them at their enemies.Later,scientists built rockets that could go into space.Starting in the 1950s,people began building model rockets for fun.Parts of a Model RocketA model rocket kit comes with all the parts a rocket needs.Kids have been building and painting m

11、odel rockets for decades.The pieces of a model rocket need to be carefully put together(top).A finished rocket is ready to fly(bottom).Model Rockets Level K78A model rockets body is a long tube made of cardboard or plastic.The nose cone fits into the top of the tube.The size and shape of a rockets b

12、ody and nose cone can change how it flies.Fins help the rocket fly straight.The engine burns fuel to push the rocket into the air.A parachute helps the rocket fall safely back to Earth.Steps in a Model Rockets Flight2 The engine pushes the rocket faster and higher.3 The engine stops and the rocket c

13、oasts upward.4 The rocket engine makes a small upward explosion that pops the nose cone off,pulling the parachute out.5 The parachute opens and slows the rockets fall.6 The rocket returns safely to Earth.7 The rocket touches down.Once the parachute is repacked and the engine is replaced,the rocket c

14、an fly again.1 The engine starts and the rocket lifts off.Nose cones and rocket bodies come in many shapes and sizes.Model Rockets Level K78A model rockets body is a long tube made of cardboard or plastic.The nose cone fits into the top of the tube.The size and shape of a rockets body and nose cone

15、can change how it flies.Fins help the rocket fly straight.The engine burns fuel to push the rocket into the air.A parachute helps the rocket fall safely back to Earth.Steps in a Model Rockets Flight2 The engine pushes the rocket faster and higher.3 The engine stops and the rocket coasts upward.4 The

16、 rocket engine makes a small upward explosion that pops the nose cone off,pulling the parachute out.5 The parachute opens and slows the rockets fall.6 The rocket returns safely to Earth.7 The rocket touches down.Once the parachute is repacked and the engine is replaced,the rocket can fly again.1 The

17、 engine starts and the rocket lifts off.Nose cones and rocket bodies come in many shapes and sizes.Model Rockets Level K910People like to make their rockets look great.Many people paint their rockets with different colors and designs.Every rocket is one of a kind!At the LaunchpadThe only place to la

18、unch a rocket is in an open space.The launch area needs to be far away from people and buildings.A large field or a playground is a good spot.First,set up the launchpad.Place the rocket over the guide wire on the pad.The guide wire keeps the rocket pointing straight up when it lifts off.Connect the

19、launch controller to the rocket engine.Then step back and press the button on the controller to start the engine.Whoosh!The rocket flies up and away.A girl connects the wire that will allow the controller to start the rocket engine.Painting a rocket is often the final step of building.Model Rockets

20、Level K910People like to make their rockets look great.Many people paint their rockets with different colors and designs.Every rocket is one of a kind!At the LaunchpadThe only place to launch a rocket is in an open space.The launch area needs to be far away from people and buildings.A large field or

21、 a playground is a good spot.First,set up the launchpad.Place the rocket over the guide wire on the pad.The guide wire keeps the rocket pointing straight up when it lifts off.Connect the launch controller to the rocket engine.Then step back and press the button on the controller to start the engine.

22、Whoosh!The rocket flies up and away.A girl connects the wire that will allow the controller to start the rocket engine.Painting a rocket is often the final step of building.Model Rockets Level K1112Clubs and CompetitionsPeople who fly model rockets often join model rocket clubs.Schools or hobby grou

23、ps can have information about model rocket clubs.A science center or museum might have a model rocket club,too.Staying SafeModel rockets are fun,but they can be dangerous.Follow these rules to stay safe:Use only safe materials and engines in your rocket.Always launch your rocket outside in an open a

24、rea.Make sure there is no dry grass or any other fire hazard at the launch site.Make sure everyone is at least 15 feet(4.5 m)away before you launch your rocket.Count down before you launch.Ask an adult for help if you have any questions.A Cub Scout launches a model rocket as his den leader watches d

25、uring an event in New Jersey.Even in a large launch area,a rocket can get stuck in a tree as it floats back to the ground on its parachute.If a rocket gets stuck in a tall tree or on a power line,it should be left there for safety reasons.Model Rockets Level K1112Clubs and CompetitionsPeople who fly

26、 model rockets often join model rocket clubs.Schools or hobby groups can have information about model rocket clubs.A science center or museum might have a model rocket club,too.Staying SafeModel rockets are fun,but they can be dangerous.Follow these rules to stay safe:Use only safe materials and eng

27、ines in your rocket.Always launch your rocket outside in an open area.Make sure there is no dry grass or any other fire hazard at the launch site.Make sure everyone is at least 15 feet(4.5 m)away before you launch your rocket.Count down before you launch.Ask an adult for help if you have any questio

28、ns.A Cub Scout launches a model rocket as his den leader watches during an event in New Jersey.Even in a large launch area,a rocket can get stuck in a tree as it floats back to the ground on its parachute.If a rocket gets stuck in a tall tree or on a power line,it should be left there for safety rea

29、sons.Model Rockets Level K1314Many people enter model rocket competitions.They set off rockets and see which one flies the highest and the fastest.Model rocket competitions are held all over the world.In the United States,students between twelve and eighteen can enter the Team America Rocketry Chall

30、enge.Every spring,one hundred teams compete to become the best in the country.The winners go on to compete against other teams from around the world.A team from Michigan gets its rocket ready during a competition.One hundred teams competed in this rocketry challenge in Virginia.Getting started with

31、model rockets doesnt have to take a lot of money.A basic kit can cost as little as$10 or$20.The rockets used in the Team America Rocketry Challenge carry eggs.If the egg breaks,the team loses!Model Rockets Level K1314Many people enter model rocket competitions.They set off rockets and see which one

32、flies the highest and the fastest.Model rocket competitions are held all over the world.In the United States,students between twelve and eighteen can enter the Team America Rocketry Challenge.Every spring,one hundred teams compete to become the best in the country.The winners go on to compete agains

33、t other teams from around the world.A team from Michigan gets its rocket ready during a competition.One hundred teams competed in this rocketry challenge in Virginia.Getting started with model rockets doesnt have to take a lot of money.A basic kit can cost as little as$10 or$20.The rockets used in t

34、he Team America Rocketry Challenge carry eggs.If the egg breaks,the team loses!Model Rockets Level K1516Model rockets are a fun way to learn about science.Who knows how high a model rocket can take your imagination?Glossarycompetitions rivalries between (n.)businesses,teams,or individuals for someth

35、ing desired(p.13)designs(n.)the appearance or style of something built or made (p.9)engine(n.)a machine,usually with moving parts,that uses power to create motion (p.8)hobby(n.)an activity done for fun and relaxation(p.12)model(n.)a usually smaller version of an object made to look like the real thi

36、ng(p.4)parachute(n.)a large canopy made of fabric that greatly slows the movement of someone or something through the air(p.8)Kids watch as a rocket soars high into the sky.Model Rockets Level K1516Model rockets are a fun way to learn about science.Who knows how high a model rocket can take your ima

37、gination?Glossarycompetitions rivalries between (n.)businesses,teams,or individuals for something desired(p.13)designs(n.)the appearance or style of something built or made (p.9)engine(n.)a machine,usually with moving parts,that uses power to create motion (p.8)hobby(n.)an activity done for fun and

38、relaxation(p.12)model(n.)a usually smaller version of an object made to look like the real thing(p.4)parachute(n.)a large canopy made of fabric that greatly slows the movement of someone or something through the air(p.8)Kids watch as a rocket soars high into the sky.Model Rockets Level Kwww.readinga

39、-nose coneengine mountrocket engineengine hookfinsrecovery waddinglaunch lugparachutebody tubeshock cordshock cord mountshroud linesModel RocketsWritten by Joanne MatternModel RocketsLevel K Leveled Book Learning AZWritten by Joanne MatternAll rights reserved.www.readinga-CorrelationLEVEL KJ1718Foun

40、tas&PinnellReading RecoveryDRAPhoto Credits:Front cover;pages 10,15:Sarah Cebulski/Learning AZ;back cover:Michael Doolittle/Alamy;page 3:Drew Myers/Corbis;page 4:Dale,Greg/National Geographic Creative;page 5(left):SuperStock/SuperStock;page 5(right):SuperStock/Corbis;page 6(top):ZUMA Press,Inc/Alamy

41、;page 6(bottom):Mark Richard/PhotoEdit;page 7(main):Tony Freeman/PhotoEdit;page 7(inset):Allison Diaz/MCT/Landov;page 9:Fancy Collection/SuperStock;pages 11,13(bottom):Craig Frederick/Learning AZ;page 12:Tim Wynkoop/Express-Times/Landov;pages 13(top),14(both):Brian Cahn/ZUMA Press/CorbisPage 3:A fat

42、her and daughter work together to build a large model rocket.Page 4:A father and son watch a model rocket blast off from a launch pad.www.readinga-Visit www.readinga- for thousands of books and materials.LEVELED BOOK KWritten by Joanne MatternModel RocketsA Reading AZ Level K Leveled BookWord Count:407Model Rockets