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Answer. Unicellular and multicellular organisms
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Remember what you have studied in this section and answer the questions: What are organisms made up of a single cell called? How do they reproduce? What do we call living things that are made up of many…
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Fill in the Gaps (KET)
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Read the summary of Chapter One and choose the best word for each space. Hamish and Catriona live in a fishing town in Scotland. Hamish is a fisherman. One day he finds a baby in his net. He Catriona do…
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Check. Test yourself
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Remember what you have studied in this unit and answer the questions: What is the temperature of the matter at the Earth's core? How fast do tectonic plates move? How do two touching plates move in…
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How we breathe in places with no air
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We need air to breathe Humans and other animals that live on land need air to live. When we breathe, we take oxygen from the air. With this oxygen and with the food we eat, our body has the energy it…
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The effects of heat
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Changes of temperature If we put a hot object in direct contact with a cold object, heat will travel from the hot object to the cold object. The temperature of the hot object goes down. We can say that…
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Complete. The mouth, stomach and intestines
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Complete this text with the correct words: After we have chewed our food, the tongue pushes it from the mouth to the . Food then moves down the which is a muscular tube that leads to the . This organ is…
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Summaries - Science and technology
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1. Science and technology in today's world During the 20th century and the beginning of the 21st century, people made great advances which have improved the quality of life for people all over the…
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Complete. The leaves make the food for the plant
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Complete the text about the parts of a leaf: takes place in the leaves. Therefore the leaf structure must allow the leaf to exchange and to transport water from the and the stem to the leaves. This also…
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Remember - The five senses
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We use our senses to find out information about the world around us. Human beings have five senses: touch, sight, hearing, taste and smell. We use different parts of our body for each sense. These body…
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Complete. The activities of the Palaeolithic period
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Complete the sentences about the activities of the Palaeolithic period: The men and women of the Palaeolithic period were because they didn't have permanent settlements. They fed themselves by , and…
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