AMAZING ANIMALS
Read the story below.
Social Studies
AMAZING
ANIMALS
Lesson 2
Smart as a Chimp
Guess what animal I'm thinking of? This animal
likes to laugh and tickle its friends. It also uses
tools to find food. When this animal is sick, it takes
medicine to feel better. No, I'm not thinking of
people. I'm thinking of a chimpanzee. How can
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chimpanzees do all of these things? They can
MP3 because they're intelligent animals. Chin1panzees
like to eat ants. But their arms are too big to reach
inside the ants' nest.
So, what they do is find thin sticks or twigs .
Chimpanzees put the twig inside the nest. Ants
cling to it. When the chimpanzee pulls the stick out,
there are many yummy ants to eat. Chimpanzees like
to eat nuts too. But opening a nut is not easy. How
16 Lesson 2
0 Reading Comprehension Choose the best answer.
1. This story is about _____
a. chimpanzees b. tickling
c. laughing d. using tools
2. Chimpanzees use twigs to _____
a. scratch their backs b. find water
c. reach inside birds' nests d. reach inside ants' nests
3. Chimpanzees use _____ to crack open nuts.
a. rocks b. twigs
c. medicine d. powerful muscles
4. Because of chimpanzees we know _____
a. how to be silly b. which plants to use for medicine
c. how to eat ants with a stick d. which bananas taste the best
@ General Understanding Circle T for true or F for false.
1. Chimpanzees hug each other, wrestle for fun, and laugh. T F
2. Chimpanzees know which insects to eat to make their
stomachs feel better. T F
3. Chimpanzees are very serious. T F
4. Like us, chimpanzees are furry. T F
Amazing Animals • Social Studies 21
Word List
o discover fd1,i.. ,, ,, v. MP3
to find something
- He discovered treasure under the sea.
o switch '" 11, v.
to change one thing for another
- She switched a green apple with the red apple.
o repeat 11pi:11 v.
to do again
- She repeated the exercise three times.
0 experiment f1l-.,pc1-111J.l11l n.
a test to see what happens
- She did an experiment in science class.
o select ,i101-., v.
to choose
- Always select healthy food.
0 bucket b ,1-.11 n.
a container for holding something
- He filled a bucket with cold water.
0 professor p1 ,,.::, )I' n.
a university teacher
- You must study hard to be a professor.
o shock 11- v.
to surprise someone greatly
- We were shocked at the news.
22 Lesson 3
- - --
I AMAZING ANIMALS -
Read the story below.
Math
AMAZING
ANIMALS
Lesson 3
What's after Seven?
Have you ever needed help with math? The next
ti111e you need help, ask Ashiya the elephant! Ashiya
counts very well. She also doesn't make many
mistakes. Let's go to Japan and learn more about
how amazing Ashiya is. Ashiya lives at the Ueno
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Zoo in Tokyo. This is where it was discovered that
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Ashiya could do math. Many animals, not just
elephants, can count things. But other animals can
only count to about three or four. Ashiya can count
up to seven! She is a very smart elephant.
How do we know if Ashiya can really count? We
can't just give her a math test, can we? Actually,
that's exactly what happened. A university
professor thought of the idea to test Ashiya using
apples. The professor put two buckets in front of
Ashiya. Ashiya couldn't see inside the buckets
24 Lesson 3
discover bucket
repeat shock
though. She could only see if things were dropped experiment switch
professor select
inside of them. The workers slowly put five apples !--.
into one of the buckets. One by one, they dropped in
the apples. In the second bucket, they put in seven
apples. If Ashiya really can count, then she will pick
the bucket with more apples. The workers repeated
the experiment many times.
Sometimes, they would even switch the buckets.
They were trying to confuse Ashiya. But even so,
Ashiya almost always selected the basket with more
apples. She scored an 87 percent on her math test.
There could be only one reason for this. Ashiya must
have been counting the apples as they were dropped
into the bucket. She must also know that seven
apples are more than five apples. Everyone was
shocked . They couldn't believe that an elephant
could do math!
Amazing Animals • Math 25
Exercise 1
Math Complete each sentence with a word from the box.
AMAZING
ANIMALS
Lesson 3 discovered buckets repeated shocked
experiment switch selected professor
: .
1. He will the old bucket with a
new one.
2. The wants to give the
elephant a math test.
3. The workers gold and
diamonds in the cave.
4. They the same test three
times.
5. Fill the with water from the
well.
6. The scientist is doing an 111
the lab.
7. Ashiya the one with more
apples in it.
8. Are you that an elephant can
count?
26 Lesson 3
Exercise 3
Math Choose the word that best completes the
AMAZING
sentence.
ANIMALS
Lesson 3
1. We will the president by a vote.
a. select b. care c. find d. wait
2. The bad news all the family members.
a. borrowed b. spend C. cried d. shocked
3. He filled with hot water.
a. a bucket b. an air C. an1ce d. a news
4. The scientist proved his idea by doing
a. a book b. an experiment C. a walk d. a brain
5. I will never a mistake again.
a. repair b. repeat c. release d. ready
6. I my glass with his.
a. told b. cleaned c. switched d. made
7. She became a at the university.
a. soldier b. nurse c. owner d. professor
8. The lost cat was at the park.
a. stayed b. pleased c. discovered d. bathed
28 Lesson 3
Dynamic Earth
In lessons 4-6 you will read about dynamic Earth. Have
you ever seen a volcano? Hot lava comes from volcanoes.
In the Arctic it is always cold. Sometimes it is always dark
too. Fossil fuels come from under the Earth. They make
our cars go. Think about how the Earth changes. What
makes it change?
Science
Lessor 4 Fire under the Earth
Social Studies
Lesson 5 Never a Warm Day
Health
Lesson 6 Fossil Fuels
gush r� \'1 lltV·C-07
0 V.
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to flow suddenly in great volume
- Suddenly water gushed out.
0 liquid :1ik\\ 1d n.
water or oil
- Water is a liquid that is good for our body.
Q ancient [<:1111 Ill' 8.
very old
- We found some ancient buildings.
Q erupt f1r;pl V.
to throw out violently
- The volcano is erupting now.
o lava 1,, ,1 n.
hot melted rock that comes out of a volcano
- This rock is made from lava.
0 recently '•i:, •llh ad.
not long ago
- Recently my friend gave me a kitten.
I c..-i.
0 active ii·kt11 a.
to be busy doing something
- The active woman can do many things.
0 dormant d ',:rl'l >Ill a.
sleeping
- The dormant volcano can erupt at any time.
32 Lesson 4
0 magma [mxgm;i] n.
hot melted rock found inside the earth
- When magma erupts, it is called lava.
0 surface [sJ:rfis] n.
the outside of an object
- An astronaut is walking on the surface of the moon.
0 volcano [volkcinou] n.
a mountain with a hole in the top
- Smoke is coming out of the volcano.
0 nearby [niarbai] a.
not far away
- We went to a nearby restaurant for dinner.
0 astronomer [Jstrcin.imJr] n.
a scientist who studies outer space
- An astronomer is looking at the stars with a telescope.
0 fountain [fauntin] n.
a stream of water going into the air
- Children are playing in the fountain.
0 melt [mdl] v.
to become liquid by heating
- The metal melted at a high temperature.
0 quiet [kw{ii,11] a.
without much noise or activity
- Keep quiet in the classroom.
Dynamic Earth • Science 33
Word List
0 possible [p{i,,1b 1 1] a. MP3
can be done
- It is possible to score high if you study hard.
Q require [ril.:11;\i,1,j V.
to need
- Being a firefighter requires training.
0 urban [.1:rb,111] a.
connected with a city
- Most people in Korea live in urban areas.
0 industrial [ind ,,tri.11] a.
having to do with factories
- Industrial robots work like men.
0 remains [ri111ci111] n.
all that is left
- The remains of an ancient insect were found.
0 form [Lnm] V.
to come together
- Clouds are forming in the sky
0 process [pr6,c·,] n.
a series of actions or changes
- Let 1s learn the process of making bread.
0 replace [ripl.:i,] V.
to change something for something else
- I replaced the old light bulb with a new one.
48 Lesson 6
- - - -
DYNAMIC EARTH
Read the story below.
Health
DYNAMIC EARTH
Lesson 6 Fossil Fuels
What do plants have to do with pollution? Aren't
plants good for the Earth? The plants we see around
us help keep the air clean. But plants from 300
million years ago are polluting the planet. How is
this possible ? Let's learn about how plants fro1n
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long ago can cause pollution today.
MP3
We require a lot of energy to heat our homes, run
our cars, and light our cities. Most of this energy
comes from fossil fuels like coal, oil, and natural gas.
Burning fossil fuels may give us the energy we need,
but this also creates a lot of air pollution. When
fossil fuels are burned, they release harmful gases
that mix with our clean air.
50 Lesson 6
possible require
urban industrial
This is a big problem in urban areas where there are remains form
process replace
many people. Huge amounts of fossil fuels are
burned in big cities. Industrial cities like London,
England in the late 1800's had so much smoke in the
air that it was hard to see the sun. Many people got
sick and had trouble breathing. So what does all this
have to do with plants?
Well, fossil fuels are formed from plants. Over
time, plant remains change into coal, oil, and natural
gas. But this process takes millions of years. That
means fossil fuels can't be replaced quickly or
easily. Today we are using fossil fuels faster than
they are being made. One day, the Earth will run out.
Let's conserve our fossil fuels to make sure this
doesn't happen.
Dynamic Earth • Health 51
Exercise 1
Health Write the word next to its meaning.
DYNAMIC EARTH
Lesson 6
possible require urban industrial
remains form process replace
1. to come together
2. all that is left
3. can be done
4. to need
5. to change something for
something else
6. a series of actions or changes
7. having to do with factories
8. connected with a city
52 Lesson 6
Exercise 3
Health Circle the word that has the same or almost the
DYNAMIC' EARTH
Lesson 6 same meaning as the underlined word or words.
1. Scientists disagree about how the universe was created.
a. served b. required c. cleared d. formed
2. This is the picture of the Tokyo metropolitan area.
a. urban b. subway c. rural d. police
3. This sport demands both speed and strength.
a. amends b. requires c. releases d. remains
4. He was sick yesterday. So I took the place of him.
a. placed b. changed c. formed d. replaced
5. Now we will see the series of steps of getting a driver's license.
a. run b. process c. point d. possible
6. I will use public transportation if I can.
a. like b. replaced c. impossible d. possible
7. This city is small but has many factories.
a. forest b. rural c. industrial d. possible
8. The captain ordered to throw out any object that is left unused.
a. remain s b. objective c. process d. plants
54 Lesson 6
Read the story below.
Science
Do You Hear That?
SOUND
Lesson 7
What's that sound? That's an easy question. Maybe
you hear a bell or the phone ringing. But what if I
asked you what is sound? That question may seem
much harder, but it's really not. Think of sound as
energy that we can hear.
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MP3
Sound is made when things vibrate , or move back
and forth quickly. All sorts of things vibrate and
make sound. We make sounds when we talk and
sing. So how do we vibrate? Well, there are parts
inside of our necks that vibrate. Let's try an
experiment. Put your hand on the side of your neck.
Now start talking. You can feel these parts vibrating
as you speak. We 1nake music by making things
60 Lesson 7
- �
ROBOTS
�-��-----...,_.----__.......•
Read the story below.
Social Studies
ROBOTS
Lesson 11 Early Robots
Many people think of robots as modern 1nachines,
but they have been around for a long time. Many
early robots were toys. They couldn't do very much.
But as time went on, robots began doing some
impressive things.
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The first robot was
MP3 made by a Greek
inventor. He built a
pigeon that looked
real. The bird could
even turn. It rotated
if you moved a
wooden bar. This
kind of robot might
seem silly to us. But
long ago this was a strange and wonderful thing.
In 1515, the King of France wanted to see something
new and surprising. His workers built him a robot
lion. On the outside, it looked like a simple wooden
lion. On the inside though, there were round gears ,
just like a watch. When these gears moved, the lion
could walk around. It could even raise its paw .
After a few steps, the lion's chest would open. Inside
94 Lesson 11
Read the story below.
Science
IMAGINARY
CHARACTERS
Lesson 13
Computer Movies
Have you ever seen an old horror movie? Did the
monsters in the movie look real? Many of those
creatures were just people wearing costumes . They
didn't look scary at all. That's why today, movies are
being made with computer graphics.
Before
computers, it was
hard to put an
. .
1magmary
monster in a
movie. Usually
the creature
looked phony .
The audience wasn't fooled and this made the movie
less fun to watch. But with computer graphics, all
this changed. The monsters in movies started to look
realistic . Movies became scarier and more exciting.
In the movie, Jurassic Park, the heroes have to run
away from a hungry dinosaur. Audiences were so
frightened that they were on the edge of their seats.
It looked like a real dinosaur was chasing the people
in the movie! Of course, there wasn't really a 30 foot
11 2 Lesson 13
----
··- ---------·------------------- ---
- -- -�------- ---- ---- --- -
- - �-�---
costume horror
realistic phony
tall T-Rex running after the actors. But the audience frightened lifelike
distinguish creative
believed that there was. The dinosaur looked
amazingly lifelike . It could breathe, swallow, and
even move its eyes. No one could distinguish what
was real from what wasn't.
Computer graphics also let us make more creative
movies. The Day after Tomorrow is a movie about
the earth freezing. Before computer graphics,
making a movie like this would have been very
difficult. How do you cover the whole world with
snow? This kind of scenery is only possible with
computer graphics. Nowadays, it seems like there is
no limit to the kinds of movies that we can make.
Thanks to computer graphics, we can make a movie
about almost anything.
Imaginary Characters • Science 113
Science Complete each sentence with a word from the box.
IMAGINARY
CHARACTERS
Lesson 13 horror costume phony realistic
frightened lifelike distinguish creative
1. The bad boys made _______ phone
calls at the fire station.
2. An expert can ________ real pearls
from imitations.
3. I don't believe that you can fly. Please be more
4. This fake flower is really ________
5. The old woman likes to wear a traditional
________ all the time.
6. She was ________ to see a stranger in
the dark alley.
7. A good writer has a great ________
talent.
8. I was filled with _______ at the sight
of the dead body.
11 4 Lesson 1 3
Science Choose the word that best completes the
IMAGINARY sentence.
CHARACTERS
Lesson 13
1. I wear a traditional Korean _____ on new year's day.
a. cost b. costume c. custom d. curtain
2. His painting looks like a photograph. It's _____
a. unreal b. expensive c. dirty d. realistic
3. He used new technology to make his video _____
a. forgettable b. lifelike c. likewise d. frigid
4. She is very _____ . She is full of new ideas.
a. upset b. conservative c. careful d. creative
5. He saw a dead man. His eyes were wide with _____
a. smile b. love c. fatigue d. horror
6. The little girl was by an angry dog.
a. enlightened b. tired c. frightened d. preserved
7. I can't between the twins.
a. distinguish b. gush c. different d. differ
8. Everyone thought the diamond is real. But it was _____
a. phony b. genuine c. jewelry d. improved
11 6 Lesson 13
� �
--- �- ------ -----------· -- --
---------�---------
•
compreh ens1on
- - -- - -- �-----�--- - --- - - -
- - - -- - . . - -- . - - --
. -. - - - -- . . -- - - --
-- -
: CHARACTERS�
IMAGINARY �
0 Reading Comprehension Choose the best answer.
1. This story is about _____
a. computer graphics b. monsters
c. horror movies d. unbelievable movies
2. Computer graphics help us _____
a. take better videos b. understand dinosaurs
c. make more phony movies d. make more realistic movies
3. In Jurassic Park the T-Rex _____
a. was real b. could breathe, swallow, and move its eyes
c. was 40 feet tall d. was a person wearing a costume
4. In old horror movies _____
a. monsters were really scary
b. monsters were people wearing costumes
c. monsters were made with computer graphics
d. monsters were very lifelike
@ General Understanding Circle T for true or F for false.
1. Before computers movie monsters looked phony. T F
2. In Jurassic Park the dinosaurs really scared the audience. T F
3. Computer graphics help us create more phony movies. T F
4. The Day after Tomorrow was made without computer graphics. T F
Imaginary Characters • Science 11 7
Read the story below.
Social Studies
IMAGINARY
CHARACTERS
Lesson 14
Mighty Paul Bunyan
It's the year 1895. The lumbe1jacks are all very tired.
They've been in a forest chopping down trees since
1norning. It's a dark night, so they all sit around the
campfire. The men want to hear a story, but not just
any story. They want to hear the tale of mighty Paul
Bunyan. Let's listen along with them.
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Just like the men around the fire, Paul is a lumbe1jack.
He works hard chopping down trees in the wilderness .
But that's not why we call him mighty Paul Bunyan.
We call him that because he is much bigger and
stronger than the other men. Paul Bunyan can clear a
whole forest by himself. Once, Paul laughed so
joyously that he shook the earth.
120 Lesson 14
Review
Match the words with the correct definitions.
creative .. .. a wild and exciting experience
distinguish .. to tell the difference
realistic • a good result
orchard .. a person or an animal in a book or movie
talent .. .. to make someone pleased
drawing .. a picture made with a pen or a pencil
entertain .. .. a natural skill at doing something well
success .. an area where fruit trees are grown
character .. a story
whole .. having new ideas and making new things
tale .. feeling fear
adventure .. a person who cuts down trees
lumberjack .. .. total
frightened .. looking like something real
costume .. something you wear to look special
134 Review
