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Match. New agricultural tools
EduBook Organización
- 3440 visitas
Match the following definitions with the new agricultural tools: Agricultural machine that used external forces to turn cereals into flour. Plough that was heavier and more efficient than that used by…
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Learn. Simple machines - Obtaining and using energy
EduBook Organización
- 2728 visitas
Simple machines The most rudimentary machines are called simple machines. They are basic, but they are of great help in performing tasks and transferring energy. The Wheel A wheel is a circular object…
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Force and pressure
EduBook Organización
- 2632 visitas
6.1. The efficiency of force When a force is applied, the effect caused depends not only on the magnitude of the force, but also on the surface area to which it is applied. The relationship between…
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Soviet planning
EduBook Organización
- 2552 visitas
The essential task of the Five-Year Plan is (…) to transform the USSR from a weak, agricultural country that depends on capitalists, into a strong, industrial country that is completely independent of…
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Complete the sentences
EduBook Organización
- 2356 visitas
Complete the sentences: electric - pulleys - brakes - compound - wheels - manual A bike is a machine. help us to go more slowly or stop. We use to lift and lower heavy objects. The are an important part…
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Final Autoevaluation T10 02 - Obtaining and using energy
EduBook Organización
- 2325 visitas
Calculate the work being done: By a person who pushes a wheelbarrow for a distance of 100 m if he exerts a force of 500 N. W = J By a person pushing a very heavy block, failing to move, exerting a force…
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Video: Landslides
Esl video Organización
- 2924 visitas
This 4 minute video by National Geographic explains the causes behind landslides: earthquakes, floods, volcano eruptions, and landscape alterations carried out by human beings. Man made hills, eroded by…
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Initial evaluation 3 - Matter: Mass, Volume and Density
EduBook Organización
- 2200 visitas
Are the following sentences true or false? Mass and weight are the same. A heavy body occupies more volume. The volume of a body is the space it occupies. Density is the relationship between the mass of…
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True/false. The Atlantic climate
EduBook Organización
- 2175 visitas
Decide if the following statements are true or false: The Atlantic climate is found in Galicia, the coast of Valencia and parts of the Balearic Islands. ➝ Temperatures are moderate and it rains…
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