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Answer. Elements and compounds 04
EduBook Organización
- 1298 visitas
What is a compound? Write the names of some compounds and their formulas.
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Answer. Density 5.5
EduBook Organización
- 1297 visitas
What procedures should we follow to measure the density of a solid?
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Answer. Density 01
EduBook Organización
- 1294 visitas
Define the concept of density and name the units of measurement used to express it.
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Answer. Moon, Earth and Sun 05
EduBook Organización
- 1294 visitas
Explain why there is a five-hour time difference between Europe and places on the Atlantic coast of the United States.
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Final self-evaluation 3 - The Earth and the Moon
EduBook Organización
- 1293 visitas
Complete the text with the missing words: sidereal – galaxy – elliptical – seasons – hours – axis – polar – revolution – Milky Way The Earth follows the Sun in its movement through the ,…
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Greenhouse effect
EduBook Organización
- 1296 visitas
Water vapour and carbon dioxide are involved in the greenhouse effect. The atmosphere acts like a greenhouse. The atmosphere holds part of the heat radiated from the Earth. This keeps the Earth's…
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Answer. Atmosphere and weather 4
EduBook Organización
- 1287 visitas
Which meteorological instruments are used to measure wind speed and wind direction?
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Did you know?
EduBook Organización
- 1298 visitas
The surface tension of a liquid is the resistance its surface gives when an object is placed on it. The surface tension of water acts like an elastic membrane, and it can support small objects, such as…
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Reflect. Waste water 3
EduBook Organización
- 1300 visitas
Is the water that leaves water purification plants suitable for human consumption?
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Answer. Minerals 2.1
EduBook Organización
- 1289 visitas
What characteristics do minerals have? How many chemical elements are they usually made up of?