1 WE ARE ALL DIFFERENT Page 24
1. Write T (true) or F (false).
T; F; T; T.
2. Look at the picture above and write the stages.
baby → adolescent → adult → old age Page 25
1. Look at the pictures of David. How is he different today? Write.
M.A.
David is taller and bigger. He has got glasses.
2. How are they feeling? Draw the clown’s faces.
Ss draw a happy face and a sad face.
3. Draw your friends and write.
O.A.
2 THE SENSES AND MOVEMENT Page 26
1. How many bones make up your skeleton?
There are 206 bones in your skeleton.
2. Write T (true) or F (false).
T; T; T; F; F.
Page 27
1. Look and answer the questions.
The biceps move your arms.
The calf muscles move your legs.
The abdominals move your trunk.
2. Which children are using their muscles? Tick (✓).
(Ss tick the first and third picture.)
3 NUTRITION Page 28
1. Answer the questions.
M.A.
Henry needs oxygen to live.
He breathes about 40,000 times a day.
Mark’s food travels nine metres.
He likes fruit.
Tommy is six years old.
Adults have got thirty-two teeth.
Page 29
1. Look and complete the text.
We all need air to live. When you breathe in, air enters your body through your nose and mouth. The air goes into your body through the trachea. Then, the air enters your lungs. When you breathe out, you empty your lungs.
2. Read and circle.
When you are born you have no teeth.
In your first year, your milk teeth grow.
Your milk teeth begin to fall out when you are about six years old.
3. What is a healthy diet? Tick (✓).
We should eat all types of food.
4 PLANTS
Page 30
1. Answer the questions.
M.A.
EXTENSION
There are allotments where people grow different plants.
They grow roses, carnations, tomatoes, carrots and potatoes.
You can grow lettuce, beans and sunflowers.
2. Circle the tools we can use in an allotment.
(Ss circle the spade, wheelbarrow, hoe and watering can.)
Page 31
1. Look and classify the plants.
trees → orange; plum.
bushes → tomato; pepper.
grasses → lettuce.
2. Complete the text.
In spring, flowers grow on the apple tree. In summer, they turn into fruits.
There are seeds inside the apples.
2. Read and circle.
A fir tree keeps its leaves all year round.
It is an evergreen plant.
An almond tree loses its leaves in autumn. It is a deciduous plant.
5 ANIMALS
Page 32
1. Read and match the sentences.
The goliath frog is in danger of extinction.
The goliath frog is very big.
The gold frog is very small.
The gold frog lives in Brazil.
The sharp-nosed frog is very good at
Tree frogs have got sticky toes.
Tree frogs are very good at climbing.
The oriental fire-bellied toad changes its skin colour.
The oriental fire-bellied toad is poisonous.
Page 33
1. Tick (✓) the characteristics of frogs.
They are vertebrates. They are oviparous. They have got bare skin.
They have got legs.
2. Circle the amphibian.
(Ss circle the salamander.)
3. Compare frogs and newts. Read, then circle the correct words.
A newt has got a thin body.
A newt has got a long tail.
A frog has got a fat body.
A frog hasn’t got a tail.
6 ECOSYSTEMS
Page 34
1. Answer the questions.
M.A.
The Amazon rainforest is in South America.
The jaguar and the anaconda snake.
The most dangerous fish in the Amazon River is the piranha because it has got very sharp teeth and eats all kinds of animals.
Page 35
1. Write T (true) or F (false). Then, correct the false statement.
Answer keys
EXTENSION(Ss correct the last statement.):
The Amazon rainforest is in South America.
2. What are the differences between these two ecosystems? Complete the sentences.
In a desert ecosystem there are not many plants, but in a jungle ecosystem there are many trees and bushes.
In a desert ecosystem we can find animals, such as lizards and scorpions.
In a jungle ecosystem we can find animals, such as snakes and monkeys.
7 MATERIALS Page 36
1. Read and tick (✓).
Paper is a man-made material.
It is easy to recycle paper.
Page 37
1. What materials and tools do you need to make recycled paper? Write.
Some old paper, water, a bowl, a mixer, a wooden frame with a net, a cloth, a rolling pin and a clothes line.
2. What are the properties of paper?
Write.
Paper is flexible and soft.
3. Draw a recycling container for paper.
Then, circle the objects that you can put in it.
(Ss draw and then circle the box, newspaper and notebook.)
4. Write T (true) or F (false).
F; F; T; T; T.
8 FORCES AND ENERGY Page 38
1. Read the text and circle the correct words.
People travel to space in spaceships.
Humans have travelled to the Moon.
Spaceships use solar energy when they are in space.
Solar panels use sunlight to produce electricity.
2. Look at the picture of the satellite and write.
This satellite is in space. It is going round the Earth. It has got two solar panels to get energy from the Sun.
Page 39
1. Tick (✓) the characteristics of solar energy.
It doesn’t pollute the air.
It will never run out.
It is renewable.
2. What problems are there for space travellers? Cross out the false statement.
(Ss cross out In space there is no light, so you cannot see.)
3. Sunlight is a renewable energy
source. Write the names of two more renewable sources and two
non-renewable sources.
renewable sources → wind; water.
non-renewable sources → coal;
petroleum.
EXTENSION
4. Draw a spaceship. What energy does it use? Write.
(Ss draw and write This spaceship uses fuel.)
9 MACHINES
Page 40
1. Answer the questions.
M.A.
Marta can see lights, screens and controls.
The computers are for controlling the plane.
The pilot can see where the plane is flying, the cities, the forests and the mountains.
She is a commercial pilot.
2. Read and match the definitions.
take off → to leave the ground.
land → to arrive on the ground after moving down through the air.
Page 41
1. Look at the planes. Which one do you think Marta saw? Circle.
(Ss circle the second plane.) 2. Write T (true) or F (false).
T; F; T; T.
3. What other machines do we use for travelling? Write.
M.A.
cars; bicycles; trains; buses;
motorcycles; ships.
4. Which machines are computers?
Colour.
A mobile phone and a tablet.
5. Read and solve the riddle. Write.
An alarm clock.