Fichas Refuerzo y Ampliación Science 3

Reinforcement and Extension

Worksheets

Science, Geography and History

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9 Plants

REINFORCEMENT

Name

Date

1. Draw a tree and label the parts.

branches leaves roots trunk

2. Use these words to complete the sentences. branches

surroundings

soft

green

water

roots

a. Plants react to their

wood

.

b. They grow towards

.

c. The roots grow towards

in the ground.

d. Some stems are hard and others are

.

e. Hard stems are made of f. Soft stems are usually

. .

g. Leaves grow on the stems and the h. 20 158203 _ 0001-0056.indd 20

light

.

fix the plant to the ground. ESSENTIAL SCIENCE 3 ◾ PHOTOCOPIABLE MATERIAL © Richmond Publishing / Santillana Educación, S. L.

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4 Animals

EXTENSION

Name

Date

The food chain ◆ Animals depend on plants for food. Plants can make their own food. Herbivores eat plants in order to grow and get energy. Carnivores eat herbivores. There is a chain from plants, to herbivores that eat plants, to carnivores that eat herbivores. This is called a food chain. The Egyptian Vulture is an example of a carnivore. It is small and lives in Southern Europe, Africa, the Middle East and Spain. It is a scavenger, which means it eats meat from dead animals. It also eats small rodents, amphibians and eggs from other birds. If these eggs are very big, the Egyptian Vulture throws stones at them to break them and eat the inside. Very few animals are capable of using tools like this to get their food.

1. Complete the following food chain with the correct word. human

rabbit

oak leaf

Plants

Herbivores

Carnivores

carrot grass c. __________

a. __________ cow caterpillar

fox b. ____________ blackbird

2. Reorder the letters of the jumbled words. a. The Egyptian Vulture is a T E R A R I V T E B because it has a skeleton. b. The Egyptian Vulture is a R E N I C A V O R because it eats other animals. c. It is also called a E R V N C E S A G because it eats meat from dead animals. d. It is one of the few animals capable of using L O T O S to get its food.

ESSENTIAL SCIENCE 3 ◾ PHOTOCOPIABLE MATERIAL © Richmond Publishing / Santillana Educación, S. L.

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REINFORCEMENT c. Can a plant live without water? No, it cannot. d. How much water do people need to drink every day? People need to drink at least one litre of water a day. e. How many days can we go without drinking? We can go four days without drinking.

5. Describe the atmospheric phenomena in these two photographs. Model answers: a. It is snowing. b. There is a storm. It is raining. It is windy.

f. Can we drink water from the sea? No, we cannot. Why / Why not? Because it has too much salt. g. Can you name two animals which live in water? Open answer. 2. Identify the three states of water. Circle these photos. Blue → liquid: a, f. Brown → solid: c, e. Green → gas: b, d. 3. Match these words with the sentences.

UNIT 9: PLANTS 1. Draw a tree and label the parts. Students draw a tree and label the branches, the leaves the roots and the trunk. 2. Use these words to complete the sentences. a. Plants react to their surroundings.

a. If we heat liquid water, it becomes water vapour: evaporation.

b. They grow towards light.

b. If we cool water vapour, it becomes liquid water: condensation.

d. Some stems are hard and others are soft.

c. If we freeze liquid water, it becomes ice: solidification.

f. Soft stems are usually green.

d. If we heat ice, it becomes liquid water: melting.

g. Leaves grow on the stems and the branches.

4. Label the water cycle and answer the question. Clockwise from the left: 1, 2, 3, 4. • Where can we find water in this illustration? Model answer: clouds, rain, river, sea.

c. The roots grow towards water in the ground. e. Hard stems are made of wood.

h. Roots fix the plant to the ground. 3. Circle the incorrect word in each sentence. Write the correct sentence. a. All plants grow very slowly. Some plants grow very slowly.

UNIT 8: AIR 1. How do we use air? Find four ways in the wordsearch. Across: aeroplane, sailing boat, balloon. Down: tyre.

b. Plants make food from ice, minerals and sunlight. Plants make food from water, minerals and sunlight. c. Plants make food in their trunks. Plants make food in their leaves. d. Plants can move from one place to another.

Model answers: Aeroplanes move through the air. Air pushes sailing boats through water. Balloons move through the air. There is air in tyres. 2. Complete the paragraph. Hot air weighs less than cold air. Hot air balloons contain hot air. Therefore, hot air balloons go up. 3. Match the columns. Lower parts of the atmosphere: there is a lot of oxygen. Higher parts of the atmosphere: there is very little oxygen. Outside the atmosphere: there is no oxygen and no life. 4. Draw arrows to illustrate the Sun’s rays. • Label the Sun, the Earth and the atmosphere. Students draw the Sun’s rays and label the Sun, the Earth and the atmosphere. • What are two functions of the atmosphere?

Plants cannot move from one place to another. 4. Identify and circle the three types of plants. Red → trees

Orange → bushes

Students circle the three trees red. They circle the two bushes orange. They circle the grass pink. 5. We eat the leaves and roots of some plants. Can you name any? Model answers: • Leaves: lettuce, spinach. • Roots: carrots, beets. 6. Do you have any plants in your house? Open answer. • How do you take care of them? Open answer.

UNIT 10: FLOWERING PLANTS 1. Find seven words in the wordsearch. Label the parts of the flower.

It has oxygen that we need to breathe.

Across: petal, sepal, ovary, stamen.

It filters the Sun’s rays so we burn less.

Down: corolla, pollen, calyx.

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Pink → grasses

ESSENTIAL SCIENCE 3 ◾ PHOTOCOPIABLE MATERIAL © Richmond Publishing / Santillana Educación, S. L.

12/3/09 16:45:38

REINFORCEMENT 4. Find eleven words related to transport in the wordsearch. Then classify them.

EXTENSION ACTIVITIES

Across: buses, planes, cars, runways, railways, airports. Down: trains, stations, roads, ports, ships. • Transport by land: buses, cars, railways, trains, stations, roads.

UNIT 1: LIVING THINGS 1. Answer these questions.

• Transport by air: planes, runways, airports.

a. They live in the Arctic.

• Transport by sea: ports, ships.

b. An igloo is a house made out of blocks of ice.

• Can you add another example to each type? Model answer.

c. Animal skins are used for clothes.

Land: lorries. Air: control tower. Sea: sailing boats. 5. Answer these questions. Model answers: a. Which transport is the fastest? Transport by air. b. Which transport is the slowest? Transport by sea. c. Why are airports usually built far from cities? Because planes make a lot of noise. d. Where do planes take off and land? They take off and land on runways.

UNIT 14: WORK 1. Classify these jobs. Then add one more example to each category. With model answers. Obtaining natural resources: miners, farmers, fishermen 1 foresters. Transforming resources: factory workers 1 construction workers. Providing services: doctors, bus drivers, bankers 1 teachers. 2. Answer these questions. a. Who makes up the active population? Working people. b. When do most people retire? Most people retire when they are 65. c. What are irrigated crops? Crops which need a lot of water. Two examples: fruit and vegetables. d. What are dry crops? They are the crops which grow mainly with rain water. Two examples: olives and some cereals. 3. What kinds of animal farming breed these animals? cattle farming, poultry farming, equine farming 4. Look at these photographs of factories. What is being made?

d. Husky dogs are used to pull sleighs over the ice. 2. Circle the correct word. a. In the Arctic it is very cold. b. Eskimos hunt fish. c. Eskimos use animal skins to make clothes. 3. A habitat in a hot climate. Match the columns. Then write about Africa. a. The climate in Africa is hot and dry. (2) b. People in desert areas wear clothes to protect them from the Sun. (4) c. Many Africans live in huts made from wood and trees in villages. (1) d. Water is very precious in Africa because there is very little rainfall. (5) e. People cultivate the land. (3)

UNIT 2: OUR SENSES 1. True or false? Decide and write T or F. Correct the false sentences. True sentences: c, d. Corrected false sentences: a. Braille helps people who can’t see. b. It was invented in 1829. e. You can find words written in Braille on medicine packets. 2. Match the two parts of each sentence. a. A jumper is soft. (2) b. A lemon is sour. (5) c. Ice is cold. (4) d. Boiling water is hot. (1) e. Chocolate is sweet. (3)

UNIT 3: OUR BODY

a. textiles 1. Which of these activities are good for us? Write good or bad.

b. biscuits c. cars

Good - swimming, drinking milk, eating fruit and vegetables.

d. fruit juice 5. Answer these questions. Open answers.

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Bad - eating sweets everyday, sleeping very little, carrying heavy books.

ESSENTIAL SCIENCE 3 ◾ PHOTOCOPIABLE MATERIAL © Richmond Publishing / Santillana Educación, S. L.

12/3/09 16:45:38