Workbook Answer Key - Pearson

Workbook 3 Answer KeyUnit 1Lesson 312 sight3 taste 4 hearing 5 touch22 mouth 3 eyes31 sight taste 2 touch sight hearing42 touch 3 taste 4 hearing 5 smell52 e6Students’ own answers3 a4 hands 5 ears4 b 5 d1picture 1: sharp jagged large tallpicture 2: smooth rounded small22 pumice32 Basalt41004 Granite907060504012 experiment22 predict3are have wantsthinks is can53 Pumice4 granite80Lesson 143 granite3 senses 4 results 5 predict3 results30204 observe 5 senseswantswants ’ssays100can1 has 2 has has 3 have 4 has two birds andTree B has two birds. 5 Tree A has six birds andTree B has three birds.YOak treeFir treeOlive tree5Oak tree: 40 m Fir tree: 80 m Olive tree: 7 m1 Fir tree 2 Oak tree 3 Fir tree6Students’ own answersUnit 2Lesson 212 hypothesis 3 height5 conclusion4 measurement22 Hypothesis: I predict that the seeds that arewatered will grow.3 Fair test: I put seeds in two pots. Each day, I wateronly one pot.4 Repeat the investigation: I do the same experimentagain.5 Conclusion: Seeds need water to grow.3First, I ask Then, before Then I look Then I do4Hypothesis5Do plants need the sun to grow a hypothesisI predict that the plant in the sun will growfair test I put one plant in the sun and I put one plantin the dark measurements height experimentconclusion: plants need the sun to growFair testRepeat Conclusion12 shovel3 screw 4 scarf22 F32 shovel42 pulley 3 wagon 4 earmuffs 5 scarf 6 shovel51 C6Students’ own answers3 T4 F3 A6 pulley5 T3 pulley2 E5 earmuffs4 scarf4 B5 DLesson 112 material3 light2boots: rubber dress: cotton, corduroysweater: cotton, fleece hat: cotton, fleece, corduroy,rubber32 light42 cotton5Students’ own answers3 soft4 heavy5 light6 soft4 hard3 It’s fleece.4 They’re rubber.Workbook 3 Answer Key1

Workbook 3 Answer Key6bootsdresshat pantsjacketshirt ottonWinterlight72 soft3 cotton4 heavy8Students’ own answersLesson 2Lesson 112 spike3 beak22 b3 d4 a32 T3 F4 T42 It’s52 is6Students’ own answers3 It’s4 claw5 c5 F4 its3 spikes6 e5 it’s4 uses5 fastLesson 214 pulley5 screw22 pulley3 wedge 4 levers32 lever 3 wedge5 simple machine42 can512 air3 nutrients4 sunlight22 soil3 nutrients4 stem32 T4Pine tree: brown2 an inclined plane 3 a pulley52 cones 3 brown7 nutrients6Wedge: knife, teeth, clawsLevers: tongs, shovel6Students’ own answers72 levers82 d92 move / lift a ball legs levers 3 eat meatteeth wedge 4 Students’ own answers3 can’t4 can3 leverslevers4 inclined plane3 a5 can’t 6 canwedgesUnit 312 ocean3 desert4 wetland22 deer32 alligators6 oceans42 oceans5Students’ own answers5 habitats3 coral 4 cactus3 deserts4 T5 sunlight6 seeds5 TPeach tree: fruit, orange4 roots5 soil6 sunlightLesson 34 wedgewedge 4 b3 F5 space4 cactuses 5 deer12 d3 a4 c22 camel32 42 some5Students’ own answers3 hump3 4 cactus5 stalk4 3 a lot of4 littleReview 1–31Across: 1 sight 4 scarf 5 hump 7 hearing9 pulley 10 graniteDown: 1 smell 2 touch 3 ocean 6 wagon8 experiment 11 roots22 desert 3 wetland 4 habitatMystery word forest32 pulley6 soil3 wetlands 4 forests3 pumice4 inclined plane5 clawsWorkbook 3 Answer Key2

Workbook 3 Answer Key41 b wetland c horn d spikes odd one out b2 a granite b pumice c stalk d basaltodd one out c3 a scarf b saw c shovel d screwodd one out aUnit 412 child 3 baby2b childc adolescent32 b3 a42 adolescent5Students’ own answersc4 adultLesson 212 oxygen22 stomach31 b42 Next52 brain 3 oxygen 4 heart6 contracting and relaxing61 2c 3a72345678Students’ own answersd adultb 4b3 adultcd4 childadolescentLesson 11a3b adulthood 422 coordination32 infancy42 their 3 our4 our 5 their52 F5 T3 Fc infancyd childhood 23 physical 4 adolescence3 childhood 4 mental4 T6 theirInfancy Childhood Adolescence Adulthood1 reach maturity? 2 color apicture? 3 jump rope? 4 do homework? 5 cook a meal?7 crawl?78 4 Muscles2 a3 Last4 First5 Next6 Next 7 Last5 blood2 1b 2a 3d 4csenses send information to brainbrain tells us to catchbreathe airheart pumps blood to lungsblood picks up oxygen in lungsblood takes oxygen to body12 hills3 lake2b lakec mountains3Students’ own answers42 environment 3 glaciers6 rivers 7 lakes5Students’ own answers4 mountainsd hills5 river6 glaciere river f ocean4 mountain5 hills5 island6 frozen12 pond 3 stream7 salty 8 fresh2Landforms: plain, island, hillWater: ocean, lake, river, pond, stream32 plains42 Jasper 3 Mom6 Claudia Infancycrawl3 blood5 skeletonLesson 1 6 have a baby?4 relaxingUnit 56When do youusually 3 jointChildhood Adolescence Adulthoodhave a babycolor adopicturehomework cook ajumpmealrope4 plain3 landform4 stream4 Jasper5 fresh 6 ponds5 ClaudiaMomStudents’ own answersWorkbook 3 Answer Key3

Workbook 3 Answer Key5Students’ own answers6Students’ own answers4Suggested answers:2 John sleeps until 10 A.M.3 John’s mom cooks lunch at 12 P.M.4 John’s family goes home at sunset.5Students’ own answersLesson 212 refuge22 pollution3Students’ own answers42 T 3 T5We ask people to give us their old dog beds and coatsWe turn off the water when we do the dishesWe save a lot of water we recycle the metal cansWe ask the people who work here to put their paperglass and plastic in the recycling bins We also askthem to pick up their trash we turn off all the lights63 pollution4 reuse5 reduce3 reduce4 reuse5 refugeLesson 24 F 5 T2 I can walk to school.3 I can reuse paper.4 I can turn off water.7Students’ own answers8Students’ own answers2 moon 3 stars 4 sun22 stars3 planet32 stars3 sun4Students’ own answers52 sun 3 star6Students’ own answers4 sun 5 stars 6 moon4 moon4 stars 5 moon 6 sun2 moon 3 stars 4 constellation5 phases of the moon22 constellations3Moon and Stars: crater full half new phaseSun: heat light noon sunrise sunset42 look 3 looks6 looks like5Students’ own answers6Students’ own answers2 noon3 sunset4 sunrise 5 heat22 heat3 sunrise4 noon 5 sunset32 noon3 sun4 heat 5 sunset4 phase4 look like5 craters5 look like1b Venus c Earth d Mars e Uranusg Jupiter h Saturn i Neptune21 Mercury 2 Venus 3 Earth 4 Mars6 Saturn 7 Uranus 8 Neptune32 solar system3 sun4 objectf Mercury5 Jupiter5 orbit6 sun4VenusMarsEarth7 moonLesson 113 moonLesson 3Unit days)225686365 Metal Moons(number)021Mountains Heat( C)462558Students’ own answersWorkbook 3 Answer Key4

Workbook 3 Answer KeyReview 4–612Lesson 1Down: 1 infancy 2 ocean 3 refuge4 contracting 7 jointAcross: 6 sunset 8 mountain1stormyrainy22 sleet3 hail2 planet star 3 noon sunrise4 add like after looks 5 Last Next3Students’ own answers42 softly52 wet 3 forcefully 4 sleet7 temperature 8 freezing6Suggested answers: 2 rain is falling forcefully3 it’s stormy 4 there’s hail 5 there’s ecycleamdzdxdwhbo2 c 3 c4 a 5 bUnit 712 c 3 b2Precipitation: rainyTemperature: cool, hot, warm, coldDrought: dry, sunnyhail sleetwethumid4 freezing 5 humid3 loudly6 stormy4 quietly5 softly6 hailLesson 212 c rain gauge 3 d4 a thermometer22 rain gauge32 c41 Provence 2 Normandy52 had6Students’ own answers3 awind vane3 anemometer4 thermometer4 b3 fell4 wasLesson 332 rainbow drought 3 Temperature Precipitation4 rainbows temperature 5 drought rainbow42 temperature 3 thunderstorm5 rainbow 6 Drought5Suggested answers: 2 sunny 3 light 4 an object5 sunlight 6 There are six colors in a rainbow.4 precipitation12 d3 a2Thunderstorm: heavy rain, lightning, (strong winds)Hurricane: strong winds, heavy rainTornado: strong winds32 lightning 3 thunderstorm6 severe weather42 F52 Sit6Suggested answers: 1 Stay in a building.2 Close the windows. 3 Turn off the TV.3 T4 c4 tornado5 shelter4 F3 Cover 4 StayWorkbook 3 Answer Key5

Workbook 3 Answer KeyUnit 8Lesson 312 3 liquid solid22 gas3liquid: lemonade, milk, rainsolid: door, book, shorts, baseballgas: oxygen3 liquid4 solid liquid4 liquid 5 solid 6 solid42 liquid3 solid5Students’ own answers12 gas2Solid: hills, cameraLiquid: lakes, rivers, rainGas: oxygen32 always7 always4 states of matter3 neverKeepsIts OwnShape4 always5 never5Keeps ItsOwn Size6 alwaysTakes the Shape ofIts Container e.g.bowl cup sStudents’ own answersLesson 212 d3 a 4 b2B mixture separateD evaporate32 A42 can52 can changeC clayphysical change3 B 4 D3 can3 a4 b5 b22 a3 b4 a5 c3Students’ own answers42 B3 A4 D5Suggested answers: a liquid to a solida solid to a liquidmeltsUnit 94Solid2 b4 solid 5 solid 6 gasLesson 13 liquid112 soft noise 3 soft noise5 soft noise 6 soft noise8 loud noise22 soft noise3A Little Force: baby brother, momA Lot of Force: father, brother42 I push a toy car. It uses a little force.5Students’ own answers3 force4 loud noise7 loud noise4 loud noiseLesson 112 a3 d22 sound32 instrument42 c52 low6Students’ own answers3 c4 b3 vibrates4 sound3 vibratessound5 volume4 loud4 a3 high and low4 highLesson 24 can’t5 can6 can12 Motion 3 zigzag 4 push 5 pull6 back and forth 7 around and around22 Yes3 can separate 4 can evaporate3 No 4 Yes 5 YesWorkbook 3 Answer Key6

Workbook 3 Answer Key32 toward3 away 4 away42 D5Students’ own answers3 A5 toward4 C12 magnet 3 attracting6 repel 7 pole22 3correct 2 attracts some metal objects42 poles3 attract5b northc south62 attract1 repel71 correctmagnet5 4 repelling 5 attract6 d likee opposite2 can both repel and attract anotherReview 7–9122 thermometer 3 hail 4 lightning 5 drought6 temperature 7 rain gauge.Mystery word weather2 dough 3 noise 4 pole 5 anemometer6 mixture3 b 4 c32 b5 d 6 b42 a b 3 a b 4 a b 5 a b 6 a b Reading SkillsUnit 11 granite 2 pumiceUnit 21 shovelsUnit 3pelican2 movesquirrelUnit 6a Jupiterhealthybodyb 29Unit 71 b 2 aUnit 81 water2 water vaporUnit 91 a little2 a lotWriting SkillsUnit 1Box CUnit 2Pupils’ own answersUnit 3Pupils’ own answersUnit 41 10 hours a nightminutes a week2 2,800 calories a day3 420Unit 5Pupils’ own answersUnit 61 constellationUnit 72 hail3 sawmuscles jointsUnit 5aLesson 33 4 Unit 4Exercise build healthyweight feel goodUnit 81 liquid2 looks like3 lightning2 NUnit 9pull toward4 sunny3 Ypush awayWorkbook 3 Answer Key7

Workbook Workbook 3 Answer Key 4 3 Answer Key 5 Students’own answers 6 Students’own answers esson L 2 1 2 refuge 3 pollution 4 reuse 5 reduce 2 2 pollution 3 reduce 4 reuse 5 refuge 3 Students’own answers 4 2 T 3 T 4 F 5 T 5 W e ask people to give us their old dog beds and coats We turn off the water when we do the dishes