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Fertilisers
EduBook Organización
- 2194 visitas
Fertilisers are mixtures of chemical substances, including many biolelements. They are used to enrich the soil and improve plant growth. They usually contain nitrogen, phosphorus, potassium and…
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True / False. Simple machines
EduBook Organización
- 2201 visitas
Are these sentences true or false? Machines have several connected parts and work manually or with a motor. They save us time and effort. A lever is a rigid bar that moves around three fixed points.…
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Matching game: Mr. Elephant
Tiching explorer Organización
- 2498 visitas
Find the matching cards by clicking each one to turn it over. If you click two cards in a row that are matching, those cards are removed and you receive some points. Card sets include matching letters,…
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Answer. Spermatophytes
EduBook Organización
- 2184 visitas
Remember what you have studied in this section and answer the questions: How do spermatophytes reproduce? What are the main parts of a spermatophyte? What is the function of the roots? What is the…
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Think. Plant reproduction
EduBook Organización
- 2180 visitas
Answer these questions in your notebook: Why do you think that the petals of flowers are often brightly coloured? Why are the seed-buds inside the pistil? At what point do seeds use the food supply they…
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Complete. The study of earthquakes
EduBook Organización
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Complete the text using the words below: Richter - seismographs - seismograms - seismic - magnitude waves travel through the Earth's interior. The instruments used to measure the waves are called ,…
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Spain, A major tourist destination
EduBook Organización
- 2197 visitas
Spain is the third most important tourist destination in the world after France and the United States. This is calculated by the number of tourists and the level of income from tourism. Tourists are…
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Industrial location factors
Tiching explorer Organización
- 1 lo usan
- 1899 visitas
We learn that industries are more likely to locate themselves where the inputs they need are readily and cheaply available. This activity is helpful to see ifwe can work out where is the best location…
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Complete. Reproduction in non-flowering plants
EduBook Organización
- 2133 visitas
Fill in the gaps in this text about reproduction in non-flowering plants: sexual mosses sporangia two spores In non-flowering plants, types of reproduction occur: reproduction, using male and female…
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Match. The layers of the geosphere.
EduBook Organización
- 2135 visitas
Match the definitions to the terms: It is made up of three concentric layers. It is a very thin layer which forms the continents and the ocean floor. The rocks in this layer are less dense than the…