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Did you know?
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Just as with the standard kilogram, there is a standard metre at the International Bureau of Weights and Measures, near Paris. However, nowadays this length is not taken as the standard metre measure.…
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Answer. The Universe and the Solar System 3.4
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Do you know the name of spaceship or an artificial satellite that has travelled in space?
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Choose. The Earth
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Match each characteristic with one of the Earth's rocky layers: It is made up of iron and nickel. It is between the crust and the core. It is the outermost layer. Its temperature is between 1000 and…
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The formation of the Earth atmosphere
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In the beginning, our planet had no atmosphere. As the Earth cooled, various gases were produced. These gases formed the first atmosphere. Oxygen appeared when the first plants began to produce oxygen…
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Put in order. Precipitation
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Put the process of precipiation in the correct order:
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Initial evaluation 4 - The Hydrosphere
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Put the following stages of the water cycle in order starting with the formation of clouds:
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Choose. Definition of a mineral
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Choose the best definition of a mineral. A mineral is:
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Reflect. Bacteria 3.3
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How do autotrophic bacteria obtain energy? Explain this process.
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Answer. The simplest invertebrates 1.1
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Where do sponges live? Explain how they eat.
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Answer. The state: between globalisation and regionalisation 02
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What is a nation without a state? Give some examples: