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Did you know?
EduBook Organización
- 1586 visitas
The international prototype of the kilogram, or standard kilogram, is a cylindrical object made of an alloy of platinum-iridium kept under very controlled conditions in the International Bureau of…
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Did you know?
EduBook Organización
- 1549 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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Who did that? 01
EduBook Organización
- 1509 visitas
Write the name of the person who did the following actions. Some names can be used more than once. The names are in the tree trunk. Who... [...]
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Did you know?
EduBook Organización
- 1300 visitas
Water from oceans, seas and some lakes contains a large amount of different salts, mainly sodium chloride. This salt can later be extracted from the salt mounds for consumption.
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Did you know?
EduBook Organización
- 1267 visitas
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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EduBook Organización
- 1185 visitas
Hiker's diarrhoea is a disease caused by a flagellated parasitic protozoa (the protozoan has a flagellum to move around). It is common amongst hikers who drink contaminated water from mountain…
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EduBook Organización
- 1147 visitas
If we dug a hole in the Earth at a speed of one metre per minute, it would take 24 years to get to the other side.
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Who did it?
EduBook Organización
- 1268 visitas
Read the following sentences and decide who did each thing – Robinson or Friday. Who... burnt the bones in a fire? knelt down and kissed the ground? shot one of the natives? slept? had a dream which…
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EduBook Organización
- 1125 visitas
Magma is formed of molten minerals, especially silicates, water vapour and other gases. It is found inside the Earth, at high pressure and temperatures of over 1000°C.
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