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Calculate. Minerals (2)
EduBook Organización
1763 visitas
Manganese is a mineral formed at the bottom of the sea. It is found in the form of different sized nodules. If we know that each nodule grows by 2 mm every million years, how long will it take a nodule…
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Did you know?
EduBook Organización
1751 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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Complete. Climatic differences
EduBook Organización
1750 visitas
Complete the sentences with the correct city: Santander – Toledo – Tarragona – Málaga – Pontevedra – Granada In it rains less than in because it is in the interior of the Peninsula. If we…
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Answer. The Solar System 05
EduBook Organización
1740 visitas
Every year, around 10th August, when the Earth crosses the orbit of Comet 109/P Swift-Tuttel, a meteorite shower known as the Perseids or the Tears of Lawrence is produced. Why does this phenomenon…
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Observe. Timeline of Prehistory
EduBook Organización
1747 visitas
Look at this timeline of Prehistory and answer: Into what periods is Prehistory divided? When did agriculture appear? And herding? And metalworking? In which year was writing invented? What three…
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Interpret. Oxygen and carbon dioxide
EduBook Organización
1742 visitas
The table below shows how much oxygen (O2) and carbon dioxide (CO2) is in 100 cm3 of inhaled air and exhaled air: Is there more oxygen in the air we inhale or the air we exhale? Why does the amount of…
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Islamic terrorism
EduBook Organización
1721 visitas
We believe that the United States is directly responsible for the deaths in Palestine, Lebanon and Iraq. (…) Because of this and other acts of transgression and injustice, we have declared jihad…
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Final self-evaluation 06 - Living things
EduBook Organización
1733 visitas
Complete with the correct words: Some living things are made up of just one . The covering that surrounds the cell is the . The controls what the cell does. A is an instrument used to look at very small…
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Structures
EduBook Organización
1735 visitas
The structure of a construction Constructions like buildings and bridges are influenced by loads and forces. These are push or pull factors created by the weight of the building materials and the way…
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English Bites / Perth's future
Xtec Organización
1698 visitas
Perth is beautiful city on the West coast of Australia. Watch today's story and find out about Perth's future. This glistening city positioned between ocean and desert is not the oasis it seems.…
- Menos de 15 minutos
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