UNIT 5SCIENCE

EV

Name: ……………..………………………………………………………………………………..……...............

Class: …………………………………………………..……….…….. Date: ……………..……….……………

1 What are natural resources? Write the names of five natural resources.

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2 What are the three reasons our activities alter ecosystems.

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3 What does over-exploiting natural resources mean?

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4 Look at the picture and list the sources of pollution you see.

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5 Complete the table related to human actions that pollute ecosystems:

TYPE OF POLLUTION ACTIONS

Air pollution

Water pollution

Caused by insecticides, fertilizers, rubbishand industrial wastes

© GRUPO ANAYA, S.A., Science 6.º Primary Education. Photocopiable Material.

Name: ………………………………………………………………...............………………………… EV 5

6 What does loss of biodiversity mean?

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7 The photograph shows a protected natural space.

a) What is a protected natural space?

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b) What is protected in these spaces?

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8 Match each action with the effect.

a. Forest cut down. 1. Air pollution.

b. Gasses from cars 2. Oil slick.

c. Oil spilled from ships. 3. Loss of natural spaces.

9 Describe three important steps humans must take in order to reduce pollution.

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10What is climate change? What causes it?

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© GRUPO ANAYA, S.A., Science 6.º Primary Education. Photocopiable Material.

© GRUPO ANAYA, S.A., Science 6.º Primary Education. Photocopiable Material.