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Check. Waves
EduBook Organización
- 3982 visitas
Remember what you have studied in this section and answer the questions: What is a wave? → A wave is a... that... Do waves transport energy? And matter? How can you show which of these waves…
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Self-evaluation 2 - Weather and climate
EduBook Organización
- 3813 visitas
Which concepts do the following definitions refer to?: It is the degree of warmth in the air due to solar radiation. It is a gaseous layer more than 1 000 kilometres thick that surrounds the Earth. It…
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Answer. Human reproduction
EduBook Organización
- 3775 visitas
Remember what you have studied in this section and answer: What is a zygote? How is it formed? What is fertilisation? What route do sperm follow from when they leave the testicles to the moment they…
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Writing (KET)
EduBook Organización
- 3297 visitas
Alice writes to her sister from Wonderland. Complete her letter. Write ONE word for each space. There is an example at the beginning. Dear Sister, I in a very strange land! There a lot of animals and…
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The Universe
EduBook Organización
- 3508 visitas
The Universe is made up of all the celestial bodies and all the enormous space around the celestial bodies. The most important celestial bodies are the stars. Stars Stars are gigantic balls of very hot…
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Comprehension (II)
EduBook Organización
- 3148 visitas
Correct the false sentences. Lisa wanted to go into the man’s house. Lisa is sorry that she had a disagreement with Amy and Claire. Lisa has a lot of money with her for the phone. There is some…
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Answer. Properties of matter: mass, volume and density
EduBook Organización
- 3144 visitas
Remember what you have studied in this section and answer the questions: What is mass? What is volume? What is density? What is matter? What two physical properties does matter have? How many kilograms…
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Rock types
EduBook Organización
- 3146 visitas
Sedimentary rocks Common salt is made when sea water evaporates. It is extracted from salt mines. Sandstone is a sedimentary rock made up of grains of sand that are held together by other mineral…
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Conjunctions - Understanding the text
EduBook Organización
- 2794 visitas
“I’M NOT DEAD, BUT MY LEG HURTS A LOT,” SAYS ANNE. In this sentence but is a conjunction. Conjunctions join different ideas in sentence. Complete each of the following sentences with one of the…
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Initial evaluation 2 - The Hydrosphere
EduBook Organización
- 2873 visitas
Complete the text with the missing words: Seawater is mainly made up of water and chloride. The water in rivers contains substances compared with the water in seas and oceans. At the poles and in…