our world 5 student s book

Who's going to make notes?. rR: A1a Copycat Animals l he leafy sea dragon is a weird but beautiful copycat.. The iealy sea dragon not only looks like a copycat, it also dances like a c

D GEOGRAPHIC NATIONAL

LEARNING

(ENGAGE

Learning

Our World Student's Book 5

Series Editors: JoAnn (Jodi) Crandall, Joan Kang Shin

Author: Ronald Scro

Publisher Gavin McLean

Commrs11on1ng Editor· Natalie Rot>ert1

Publishing Consultant: Karen Spiller

Editonal Project Manager: ~aren White

Development Ed1t01: Sian Mavo1

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Te,tlCover Design: Christopher Roy and Scott Baker

Composinon: lntegra Software Services inc

Cover Photo: C'Wes C Skiles1Nat1onal Geographic

Image Collection

On the Cover

THE CASCADE ROOM,

BLUE HOLES OF THE BAHAMAS

FAST FACTS

Protection status: threatened

Location: Dan's Cave, Abaco

Island, Bahamas

Description: Inland freshwater

cave 24 m (80 ft.) under water

T

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24m

l

For Student's Book Audio go to:

Our World Online

Printed in China by RR Donnelley

Print Number: 03 Pnnt Year: 20 I 5

studentowS

NATIONAL GEOGRAPHIC LEARNING

This is our world

Everybody's got a song to sing

Each boy and girl

This is our world!

I soy 'our: you soy 'world'

I say everybody move

I say everybody stop Everybody stop!

This is our world

Everybody's got a song to sing

Each boy and girl

This is our world!

Let's It's my turn

Who's going to make notes?

Unit 4 Life Out There Unit 5 Arts Lost and Found Unit 6 Amazing Plants!

Units 4-6 Review Let's[tfl!i Can I borrow your bike, please?

It could work

Unit 7 Volcanoes Unit 8 Reduce, Reuse, Recycle Unit 9 Wonderful Holidays!

Let's Definitely not!

Our presentation is about

Irregular Verbs Cutouts

Stickers

In this unit, I will

• talk about types of extreme weather

• describe the damage storms can cause

• identify ways to prepare for extreme weather

• write a personal narrative

Tick T for True or F for False

l The temperature is

freezing cold

2 This person is walking

carefully on the ice

3 There was a hurricane

4 The trees are covered

a hurricane

,\ee

0 Listen, read and sing rR: A4

Bad Weather

There's bod weather on the way!

There's bod weather on the way!

Is it going to rain? Yes, it is!

Is there going to be a storm? Yes, there is!

Is there going to be thunder and lightning? Yes, there is! There's going to be a storm I'm going to go inside!

Be prepared for emergencies

It's always good to be safe, you'll see

Get supplies and a torch, too

Seek shelter It's a safe thing to do!

Is there going to be a blizzard? Yes, there is!

Is there going to be a hailstorm? Yes, there is!

There's going to be a blizzard I'm going to go inside!

Be prepared for emergencies

It's always good to be safe, you'll see!

Get supplies and a torch, too

Seek shelter It's a safe thing to do!

Is there going to be a hurricane? Yes, there is!

Is the wind going to howl? Yes, it is!

Are the waves going to rage? Yes, they ore!

There's going to be a hurricane Let's evacuate!

Be prepared for emergencies

It's always good to be safe, you'll see

Get supplies and a torch, too

Seek shelter It's a safe thing to do!

Seek shelter It's a safe thing to do!

Work with a friend Ask and answer

1 Do you remember a bad storm in your town?

2 What did you do to prepare?

3 What did you think and feel during the storm?

a hurricane

,\ee

~ Listen and repeat Then, read and write rR: AG

a shelter

When a weather forecaster predicts bad weather, you can make a

pran to prepare To protect yourself from wind and

ra111, you should go to a lf the electricity goes

_ in a safe place so that you have food to eat

listen and stick Find out what to do next Place your stickers in the

correct order Work with a friend

Summarise the weather forecast TR: A1

If the weather is cold, I put my winter coat on

If I see lightning, I go inside

If a sandstorm comes, I close all the windows

Match and make logical sentences Then, write five sentences

of your own in your notebook

l see lightning when I'm swimming

it rains

a storm comes the temperature rises

a flood comes

it snows

l look for a boat

l wear gloves and boots

l try to stay cool

l get out of the water

I go inside the house

l take an umbrella

Play a game Cut out the cards on page 161 Play with a friend

Take turns Match and make sentences Keep the cards

If it rains, I take an umbrella

G TR:AS Write What are you going to do? Write sentences

Is it going to rain tomorrow? No, it's going to snow tomorrow

I'm going to listen to the weather forecast at eight o'clock

Hes going to put on his snow boots

Write What is the weather going to be like?

1 Ifs going to be sunny on Sunday

2 -

3 -

4 -

5 -

6 -

Work with a friend Read Ask and answer Take turns

1 Wh) can't \\e go to the park tomorrow? (rain)

2 \•Viii she get wet walkinq in the rain? (take an umbrella)

3 \\'h\ is she closing the \\ indows? (rain)

4 When will he get a new raincoat? (today)

Work with a friend What about you? Talk abou

Ask and answer

A blizzard is coming

odav a"c: r"""""ll"'"\r"r

\.I V

ersona

personal narrati\e tells a story It describes something that happened A good writer describes details using the senses - sight, sound, taste, smell and touch Readers should reel like they were really there You can use words like

after before next and 1t,e11 Lo show the sequence or even ls

Read Read the personal narrative How does the writer

describe the hurricane? How does the writer describe what she hears and sees? How does she feel? Circle the words that relate to the senses and emotions Underline the words and expressions that show the sequence of events

-

Safe, not sorryl

Last year, the weather forecaster told us

that a hurricane was coming A hurricane is

a/ways scary, but quite exciting, too When a

hurricane comes, we k.now what to do We have

a family plan First, I had to help my dad put

heavy wood over the windows It was hard work

When the hurricane came, we could hear the strong winds outside We could hear the heavy

rain coming down Then, suddenly, we heard a

really loud noise And then something hit our

house really hard! Everyone was worried What

was that noise? After the storm, we walked

outside We could see part of a tree on our roof!

I was so happy that the windows were all fine

Next time, I won't say the wood is too heavy

Share your ideas with another group Are they the same or different? Decide which ideas everyone thinks are best

Write Write about an extreme weather experience Give details using

the senses Help the reader feel what you felt

~ Work in a small group Share your writing

0 describe the damage

the windier 1t 1s! ··· ·- ·

storms can cause

0 identify ways to prepare

for extreme weather

0 write a personal narrative

In this unit I will

• describe animal features

• describe how animals protect themselves

• talk about ways animals imitate others

• write a paragraph of classification

Tick T for True or F for False

Listen and read TR: A10

Listen and repeat TR: A11

Some animals can look like other animals or even like a plant! These

copycats are trying to hide from or trick, a hungry predator They

can look like another more dangerous animal or like another animal

the predator does not like eating

This cheetah's black spots act as camouflage

This way, the cheetah does not frighten its prey

when it is time to hunt

These butterflies a,, e "'C: +:i-,e same

species but the~ resemble eac other The top '"'re tastes

T 11e othe - o colours and

This colourful frog has stripes on its skin The bright colours tell hungry predators that the frog is poisonous

Thi-, insect i, a, ~ rcen ;t, a leaf

It imitates the characteristics of colour and shape of k,t\ t'~ to help

it hide from pred.mu

Listen, read and sing R: A12

It's a wild world!

It's hard work staying of ive

Animals do amazing things

Camouflage and imitate

Resemble and escape

The hunter and the hunted,

predator and prey,

must hunt or hide to stay olive,

each and every day

A pretty frog con be

as deadly as a poisonous snake

It's got stripes to tell

its enemies to stay away!

CHORUS

It's a wild world'

Work with a friend Ask and answer

l VVfwt pred0lors hav

L VV/mt i-, their pre •

G AR TR:A13

That katydid is as green as the leaf it sits on

That butterfly is not as pretty as the blue one

Poison dart frogs are as dangerous as some snakes

Read and write Work with a friend Take turns Compare

Compare the animals Choose one word from each group

4 a bee sting/ bad / a wasp sting

5 a lion / not loud / a howler monkey

a seal

an alligator

a bee

a wasp

Work in a group Take turns Make sentences Use the as+

sentence to start the next sentence

The hippo is as big as the car

r

Tile car ,S as gree

as me Hog

27

0 Listen and repeat Then, read and write rR: A14

GRA AR TR: A16

The butterfly The jaguar attacks

fish confuses its

predators with a spot

like an eye

The cobra defends

itself The mongoose

avoids its bite

The deer escapes

by running away

1 All predators attack prey

3 The tails of Calabar Pythons look like heads This _

predators so that they will not know where to strike!

that chases it

listen Stick True or Folse Work with a friend

Compare your answers TR: A1s

The spot on the tail looks like an eye

The sentence is true

You're right! My turn

28

The jaguar is dangerous, isn't it?

Those snakes are scary, aren't they?

This insect looks like a stick, doesn't it?

Giraffes don't eat meat, do they?

It's got a big nose, hasn't it?

That f rag wasn't poisonous, was it?

The cat escaped from the dog, didn't it?

The dogs were loud, weren't they7

The cats weren't friendly, were they7

They've got long ears, haven't they?

f» Read Complete the sentences

(!> Play a game Cut out the question tags on page 163

Listen Which tag completes the sentence? Glue nine to c your game TR: A11

ete

Listen and read rR: A1a

Copycat Animals

l he leafy sea dragon is a weird but beautiful copycat

From its name you would think it imitates a dragon, wouldn't

you? But it only gets that name from its runny shape

I he lcar) sea dragon imitates what is around it It lives in

eawccd, and so its body looks like a piece or seaweed The

ca dragon imitates the shape and colour or seaweed, and it

even looks like noating seaweed when it moves It doesn't use

the parts or its body that look like seaweed to swim It uses

r111s that are transparent, so it's hard to see them move

The iealy sea dragon not only looks like a copycat, it also

dances like a copycat A male and female sea dragon will copy

each other's movements for hours!

The mimic octopus is the only sea creature that can

imitate many different species It not only changes its colour,

it also changes its shape It has arms as thick as pencils When

it spreads them wide, they look like the spines of a lionfish

It can hide some or its arms in the sand, and leave two arms

out Then, with its white and brown stripes and the two arms,

it looks like a sea snake! It can also pull its arms together

and swim on the sea floor so, to a predator, it looks like a

poisonous flatfish!

Like other octopuses, the mimic octopus has eight arms

and three hearts It swims by shooting out jets of water

through a siphon It also has a large brain for its size What a

clever octopus!

One kind of spider tricks predators by imitating an ant It holds two legs up

to look more like an ant when it walks

A mimic octopus imitating a

poisonous flatfish

Read and write Work with a friend Compare your answers

1 What docs the leafy sea dragon imitate?

2 Whal docs the leafy sea dragon use Lo swim?

3 Whal docs the mimic octopus look like?

4 Whal docs the mimic octopus do with its arms?

Work with a friend Choose the leafy sea dragon or the mimic octopus

to talk about Your friend will listen and complete the first row Then listen to your friend and complete the second row

Habitat Shape Colour

I

Movement

An octopus

(?) Work in groups of three Take turns Summarise the reading

leafy sea dragon

The leafy sea dragon

is a copycat animal But it doesn't look like a dragon

Paragraphs of Classificiltion

parc1graph of classification describes characteristics that members of a group share You can define, compc1re and contrast details to show how things belong to a group or class You can use words such as both, cacti oJ;

like, bur and unlike

Read Read about two types of copycat animals How does the writer classify them? What words does the writer use to show their characteristics? Underline the words and expressions

One or two ways to imitate

Some animals copy other animals to avoid attack They copy the things that predators avoid,

such as a bad taste or a dangerous weapon Some

species copy the appearance of another animal,

but not its other characteristics For example, the

viceroy and the soldier butterfly resemble each

other They also both taste horrible to predators

These types of animals imitate in two ways The

ash borer moth looks like a wasp, but it does not

have a sting Predators avoid it, but it can't sting

them The ash borer moth belongs to the class of

animals that only copies appearance

I

ash borer moth viceroy butterfly

Write Write about animals that belong to a certain group or class

Describe the characteristics that they share

a) Work in a small group Share your writing

Why is it important to protect diverse species

of animals?

How does biodiversity affect your community?

Work in a small group Discuss a local species of animal Think of ways to protect it Discuss and write the best ideas in the box

Work with another group Share your ideas

Are they the same or different? Which ideas does everyone like best?

A tarsier

There is a leaf-tailed gecko on a tree t, unk

in the rainforest It uses camoufluge to survive Can you see it?

f

•

In this unit, I will

• identity musical instruments

• talk about musical styles

• express preferences

• write a paragraph of contrast

Circle the correct answer

l The man is holding

,O Listen and read rR: A19

Listen and repeat rR: azo

There are three main types of musical instruments Stringed instrument

make music when you pluck the strings Wind instruments make sounds

when you blow air into them Percussion instruments make different

ounds v hen vou hit them or shake them

Music has its own language Each single sound is a note Play two notes

or more at one time to make a chord A string of notes and chords

played one after the other makes a melody The thump, thump, thump

that makes you want to dance is the beat Combine them all, slow and

fast over time, and you have rhythm

Do you want your band to play better? You have to practise!

Play songs again and again until they sound really good

When your band sounds good, you can perform for an audience Invite your friends to the concert! lf you don't play an instrument but you have a good voice you could

be the lead singer!

Work with a friend What di you learn? Ask and answer

How manv types of ere are three rne

39

0 Listen, read and sing

: AZl

Have you ever listened to hip-hop?

Have you ever listened to drums?

I listen to all kinds of music

It's amazing fun

Listen to the saxophone

Listen to the beat

Listen to the melody

The flute 1s ploymg

The piano 1s, too

Con you?

CHORUS

Listen to the rhythm

Listen to that bond!

Smg the notes (la, la la}

and clap your hands Have you ever played a note?

Have you ever played a chord?

Have you ever played a rhythm:

1, Z, 3 4?

CHORUS

Work with a friend Ask and answer

l Who are vour favourite 1t1tl.')ici~J1h?

2 \'Yhat insl rtJ1ne11t-i do I hcv pl:1vt

3 \'Yhv do vou like !heir tnu'iic?

4 Do you play a rnusic:il in"il nnnet11?

GRAMMAR TR:AZZ

Have you ever listened to hip-hop?

Have you ever danced to hip-hop?

Have you ever been to a concert?

Has Lisa ever heard an orchestra perform?

Yes, I have

No, I haven't

No, I never have

No, she has never heard an

orchestra perform

() Read Complete the sentences

1 This song is new J have never heard (hear) it before

2 J (go) to see an opera l don't think I'd like it

concert piano have jazz lessons S, rig

Chinese opera

listen and repeat Then read and write rR: AZ3

5 We call this music with a strong beat and fast rhythm _

4i) Work with a friend Talk and stick Put the types of music in order

(1 = most favourite) Discuss your favourite music and give examples

of songs and performers

GRAMMAR TR:A24

He sings more loudly than me

I play the guitar as well as my brother

~ Read and write Make comparisons Use five words from the list

beautifully

She plays the violin better than he does

He practises the piano less often than me

fast hard often slow well worse

1 He's good He plays the guitar more often than he plays the drums

2 That's not good The orchestra sounds the band

3 She practises than he does She plays at least twice a day

4 l dance to hip-hop l dance to roe"

Play a game Play with a friend

Take turns Spin and make sentences with a comparison

My sister sings better than me

Listen and read rR: Azs

People made music before they could write about it The oldest instrument ever

found is more than 35.000 years old its a flute lnstruments of this type arc called

wind instruments Like the sound of the wind, the music comes from moving air

ome wind instruments have cl special piece for your mouth The piece also helps to

make the sound Each instrument has a shape that makes its sound different Some

wind instrument'> have holes for Iinqcrs Others have buttons to press Holes and

buttons let you change the way the air travels lo change the melody

Another way to make music is with strings When you slide a finger over a string,

or pluck it, it makes music Most stringed instruments have thick or thin strings, and

long or short strings, to make different notes

The shape of the body of a stringed instrument also helps to make the sound

Musicians use cl bow to play some stringed instruments The bow is a piece of wood

with hairs or a string stretched between its ends

You can also make music by hitting or shaking something that makes a sound

Percussion instruments can be made from many things That's because most things

make a sound when you hit them An empty space inside the instrument makes the

sound louder Percussion instruments with strings make music when the strings are

hit./\ drum is a percussion instrument A piano is a percussion instrument, too

When piano keys are pressed, hammers inside the piano hit the strings to make music

1500 BCE

Guitars and tambourines (Anatolia)

50 CE

Oboe (Rome}

Choose the best answer

1 /\ drum ic:; cl

cl stringed instrument

2 If you press cl key on cl wind instrument, the sound chc1nqc'-> because

cl your finger is heavy

b it holds the inst rumen t t i~J h tly

c the path for the air chanqc

J /\n empty space inside percussion instrurncnt-, make'> the sound ~

Match the instruments and their types Work with a friend

Tick the correct column

Drums Flute Guitar Piano Saxophone

Mozart composed his first song when he was four years old

agraphs of Contrast

Par;igr;iph , of contrJ':>t vhow the differences between tilings You can use f;ich c111d de ,cripti\e detc1ils to contrc1st different chvracteristics You can

aha uvc \,arch like but, alrhough, unlike 1/!hilc, instead and in contrast Lo

how things arc not the same

Read Read the paragraphs about two ways to compose music How

does the writer show they are different? Underline the words used

Composing, then and now

In the past, composers traditionally created their music with paper and pen But now, technology - such

as computers and phone apps - is changing how music

more and more are using these new tools Before, a

composer would write notes on lined measures of music

In contrast, apps let the composer hum a melody and

Many people think that composing music was more difficult in the past When composers wanted

stop and rub out the notes It was a slow, messy

process Some new apps, unlike old rubbers,

show music as a moving stream of co/our To

the music with his or her fingers on the screen

While traditional composers are busy deaning

ink from their fingers, modern composers can

write more songs instead!

Music can make people feel happy

~ Write Write about two styles of music or two musical instruments

How are they different? Use words and expressions that show contrast

~ Work in a small group Share your writing

Make an instrument

1 Work in small groups and research home-made

musical instruments

2 Collect recycling and make a musical instrument

3 Join other groups with instruments and

practise together

4 Have a concert!

We made percussion and wind

instruments They sound g1 eat!

Review

Carla is doing a survey about music What are her questions? What

do Laura and Andrew answer? Complete the table rR: AZ6

Laura titJft}ij(, ;t::A~drew

Match the copycat animal Find the photo that matches the text

0 Do a survey Ask two other students the same questions Make notes

Work in groups of three One of you is going on holiday to a place with extreme weather How are you going to prepare? Take turns to

ask questions and give advice

/

'

hurricane sandstorm flood hailstorm heatwave ever blizzard never tornado plan tropical storm

1 This animal's skin is as rough as a tree And it is brown like a tree, too!

That helps it hide from predators

2 This animal has feathers as brown as the colour of wood lf it hears you,

it does not move lt makes its body stiff 1t looks just like a branch!

3 This animal imitates the colour of a dead leaf lt uses the leaf as camouflage

Even if you look for it, you will never see it!

0 Continue the story Work in groups of four Choose a story Read i

aloud Then, add your own sentence to the story Take turns 1 ne share your story with another group

I'm going to take very warm gloves!

If you go to Antarctica, you need more than warm gloves!

1t is raining hard Paolo runs under a tree

Maria is standing there, too They can hear thunder Then, there is a flash of lightning! Maria says

.l\ few friend

a beautiful \ oice -\lb talk about \\ hat music to o.a

Who's going to make notes?

listen and read rR: A21

Marco: Whose turn is it?

Amy: H's my turn

Marco: Well, hurry up!

Amy: Yes, I won!

Marco: Now we're tied

Amy: No! What do you mean?

Marco: Well, l won last time!

Whose turn is it?

That's not true

That's not possible

Work with a friend Use the table Take turns to talk about

Listen and read TR: A2e

Sonia: So, I'll be Lhe reporter Who's going to make notes?

Olga: I'll do that

Sonia: Thanks Can you watch Lhe lime, Hans?

Hans: OK Er, what page are we on?

Olga: We're on page 25 We're sharing ideas about music

Hans: Thanks, Olga

Who's going to

7

- Can you

7

I'll do that

I'll (watch the time)

I'll be _ How long have we got? we've gal _

What page are we on? We're on page

Which page is it?

1 They are a doing a role play b doing a crossword

2 They arc a doing a role play b doing a crossword

Work in groups of three Prepare and practise discu Choose one task Discuss how you are going to do it

1 Make a musical invtrumcnt from rccvclcd object

2 Make ;1 collaqc about copvcat ~111in1JI

3 Make ;1 po-tcr about the we.uhct

What are we doing? ""ere -~

0 listen to two discussions Circle what the students are 001ng

g a no-:er

S

In this unit, I will

• discuss life in space

• discuss space exploration

• express my opinion

• write a persuasive paragraph

Circle the correct letter

1 What are they looking at?

3 Why are they wearing coats?

a They are b 1t is cold

on the moon

0 Listen, read and sing rR: A32

•

Outer

Deep in outer space

Deep in outer space deep in outer space

oriewtiete ,n the utuv erse

ve migt1r find a moon

vtiete flowers qtov

but I wish we'o get there soon!

CHORUS

But right here on planet Earth

/if e 1s all around

Our world is full of colour

texture, fight and sound

We can go on o JOUt ne_

nght outside our door

and see the wonders of Iif e on Ear th

and so mua: mor

pa

CHORUS

Deep ,n outer space

Work with a friend Talk about lit

in outer space Take turns

• 1llOOJ1

pla11c1

• tern

• IJIIIV('J'~l

There might be lite on other planets

0 Read Tick the true sentences

1 Some stars may have planets like Earth

2 We mav find extraterrestrials on a distant planet

3 A meteor might hit Earth

4 The Milky Way might be a galaxy

5 Earth may have an atmosphere

6 You may become an astronaut

Complete the sentences

are may be may discover

Do you think astronauts might go to

the moon again?

Yes, but it may be very simple life

oxyqcn on planets in othc: ~F1l~1\Jl'\

_ no 0XY!Jen 011 the Moon

~ - 011 o: lier pl;111d~

in I'1csp:iu:sl;1Iio11 Im

0U1er solar svs1e11h in Ilic 1111ivc:rst

G One day, scic111 isrs life on otlter pl:1ne1 "'

62

What do you think? Write sentences

1 extraterrestrial / green skin

Work in groups of three Take turns vake a se~t2'""c2 a ,

universe Your friends will add more 1r\+o, ,,at "'"'

wuh an atrn

SETI: Search for

ExtraTerrestrial Intelligence

1 A powerful rocket is needed to send anything into space

2 People live and work in a They pcrf orm experiments in space

3 Extraterrestrials probably would not speak English It would be difficult

other galaxies

5 One day we may land a _

6 Someone who travels in space is an _

for life in

on the moon a~Fl i 11

listen and stick Work with a friend Take turns describing

the rocket launch rR: A3s

GRAMMAR TR:A36

Did everyone see that comet?

Someone will go to Mars one day

(!} Read and write Complete the paragraph

anyone everyone

Everyone likes lo debate about life on other planets

knows for sure if there is life out there or not lf

-

- tells you that they know, that person really doesn't xnow:

Are you who likes to debate? l will debate about life i

answer, but has an opinion!

Work with a friend What about you?

1 Does anyone in your fanulv think there is life on other nlanets?

2 Name one thing everyone in your farnily does belie\ e

3 Name one thing no one in your family beliex es

4 Name a funny habit someone in )OLH family has

Play a game Cut out the cards on page 165 1"1ake sente'"'ces Take turns

Does anyone want to be an astronaut?

No one can see all the stars in the universe

no one someone

Everyone here 1

a good studen

Listen and read rR: A37

Listening for Life

11 L'\lr,JIL'JJC'>lrial-, /i\l' 0,1 otllc, planet», we can'l sec them Planets in other solar

'>\"ten, , .nr \Cl_\ r:i, ;l\\,l.) \'Ve c;rn't <cc the plar cts even with our biggcsl Lclcscopes

/~ill \,li,1t ii till' l'\t,;itcJJC'-.l1izils, want 10 commu11ic;:1lc with us? \Nhal if they arc

s,ciidin(J

11 , 111c-,s,nqL''-.1 I his, ,i~111:1' would travel through space After many years, it

niiqllt ,c;1cll m11 -,ol~n \~ ,tcm lhr ,i~J 11;11 would be very weak It would be hidden in

tile 11oi'>l' /'1()111 other pl;1ccs, in )fJJCC We would need specic1l tools lo hear it

i , c j c 11 I j , h ,11 C , I· I I Ii a\ C 111 J cl C ~l l O O I f Or Ii S l C n i 17 g lt US e S 4 2 S cl le 11 i l C di She S th a l are

jni11cd toqctilc1 \cic11ti-,l'> pl;111 to have 350 dishes one day They point all the dishes at

1/Jc s,;1111L' pl;irc i11 the -,k_y Then they search for any data they can hear The dishes can

/Jt-;11 \Cl_\ weak -,i911;ils For cvamplc, they could hear a mobile phone on a planet in

ow -,olar \),'->lc111 [Tha! \ if anyone had c1 mobile phone 011 Jupiter!) The dishes pick up

noivc from radios 011 Earth too Scientists must be careful to avoid this noise

\,Ye have not heard from an extraterrestrial yet But is it possible that they are

listening to us? If they are, most could not have heard us yet We have used radios for

fewer than 100 years That isn't much time for the big distances in the universe

ln that time, our signal could only reach a small number of stars

Extraterrestrials from nearby solar systems would not

hear us for thousands of years

Tick T for True or F for False

1 E Lratencstrials have listened to our radio waves for over 100 years

2 SETl dishes listen for life by listening for radio signals

J Scientists point the SETl dishes in lots of directions

4 Radio waves from Earth are a problem for SETl scientists

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Should we search for life? Write why and why not

I think it's a good idea to search

for life because I think it's a1 bad idea to search for

Ute b~cause

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-t-

T -

Work with a friend Look at the table

and discuss Support your opinion

I think it's a good thing to search for life because we can learn lots of things from extraterrestrials

Earth Vve like to think that we are at the centre of things! But

the Sun He was right And the Sun orbits the centre of the galaxy The

we have a/ways been people who search

China who travelled as far as Arabia and 1 •

the Horn of Africa in the 1400s Frederick

in 1911 We search on Earth and in space

Write Do you think we should search for life in space? Take a position Think about cost, usefulness, urgent problems on Earth and so on Use facts to persuade

Work in a small group Share your writing

discuss life in spa

discuss space exploration

001n1on

In this unit, I will

• talk about why it's good to hold on to traditions

• explain how the past makes me who I am

• write a blog

Look and answer

I What is this person wearing?

Knowing your history is important

Holding on to your culture is an excellent thing! Knowing your history is important

It's up to you to keep your culture strong!

What speoal art does your culture bring to our world? What special thing does your family bring to our world? Weaving? Learn to do it!

Storytelling? Learn to tell it!

What brings your culture pride?

CHORUS

What special art does your culture bring to our world? What special thing does your family bring to our world? Embroidery? Learn to sew it!

Sculpture? Learn to sculpt it!

What brings your culture pride?

Vour grandparents may seem old to you, but they know a thing or two!

CHORUS

Work with a friend Ask and answer

I What special art does your culture bring