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Pure substances and mixtures
EduBook Organización
- 4202 visitas
4.1. Pure substances and mixtures Pure substances are substances made up of a single type of element or compound. Two examples of pure substances are iron and salt. A mixture is made up of different…
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True/false. Transporting water from the root to the leaves
EduBook Organización
- 4195 visitas
Answer true or false: Transpiration of water through the stomata in the leaves is a continuous evaporation process. The xylem vessels are very thin in diameter. Less than 1 mm in diameter. A stoma is a…
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Interpret. Tropical climate
EduBook Organización
- 4191 visitas
Look at the climograph and answer the questions: What are temperatures in tropical climates like? What is the average annual temperature? Is precipitation distribted in a regular way during the year? In…
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Comprehension check (KET)
EduBook Organización
- 3843 visitas
Are these sentences ‘Right’ or ‘Wrong’? If there is not enough information to answer ‘Right’ or ‘Wrong’, choose ‘Doesn’t say’. The Elephant’s Child lives on the green Limpopo…
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Understanding the text (KET)
EduBook Organización
- 3838 visitas
Are these sentences “Right” or “Wrong”? If there is not enough information to answer “Right” or “Wrong”, choose “Doesn’t say”. Dorothy wants to find the Good Witch of the South.…
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Introduction - Obtaining and using energy
EduBook Organización
- 4110 visitas
Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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End-of-unit activities - Obtaining and using energy
EduBook Organización
- 3996 visitas
Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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Opposites (II)
EduBook Organización
- 3678 visitas
Use some of the words to complete these sentences. weak forget beautiful die hate inside young thin sad love fat strong live remember old ugly happy outside Colin never goes . Mary and Dickon work the…
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Self-evaluation 8 - Weather and climate
EduBook Organización
- 3933 visitas
Which of the following statements about precipitation are true or false?: A rain gauge measures the amount of water that has fallen. A hygrometer is an instrument used for measuring average…
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Remember - Obtaining and using energy
EduBook Organización
- 3924 visitas
Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…