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Experiment. Stable and resistant structures
EduBook Organización
- 1656 visitas
It is important to use the right material to make pillars and beams more resistant. It is also important to consider their geometric shape and position. Do this experiment to check the resistance of an…
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Before you start - Machines and structures
EduBook Organización
- 3178 visitas
Didactic objectives Identify the basic characteristics of electrical current, conductors and insulators. Identify the parts of an electrical circuit and draw a diagram with the correct symbols.…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2838 visitas
In this unit we will look at electrical circuits, generators and motors that work by magnetism. We will also look at the machines and tools which help us do our work. Finally, we will look at…
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Self-assessment T10 02 - Machines and structures
EduBook Organización
- 2790 visitas
Complete these sentences with the correct words: Some objects become electrically when we rub one against the other. Electrical current is the flow of through materials. A is needed to create the…
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Observe. How megalithic structures were built
EduBook Organización
- 2727 visitas
Look at the drawing of the building of a megalithic structure and answer the questions: How were the megaliths transported? How was the stone placed in the correct position?
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End-of-unit activities - Machines and structures
EduBook Organización
- 2596 visitas
In this unit we will look at electrical circuits, generators and motors that work by magnetism. We will also look at the machines and tools which help us do our work. Finally, we will look at…
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Self-assessment T10 10 - Machines and structures
EduBook Organización
- 2456 visitas
Are these sentences true or false? The structure of a building must be stable and resistant. The structure of many buildings consists of a system of girders, beams and pillars. The beams form the base…
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Video: Representing Structures of Organic Molecules
Khanacademy Organización
- 3681 visitas
This 7 minute tutorial explains chemistry nomenclature and notation using the example of simple carbon chains such as methane and propane. We can listen to specific vocabulary (e.g. "bond",…
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Self-assessment T10 08 - Machines and structures
EduBook Organización
- 2371 visitas
Complete the text with the correct words: A is an instrument that we use to make our work easier. We operate tools using our . Humans used , bones and sticks to make the first tools. These included…
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Self-assessment T10 06 - Machines and structures
EduBook Organización
- 2257 visitas
Are these sentences true or false? Levers are compound machines which are made up of three elements: the load,the effort and the fulcrum. In first-class levers, the fulcrum is located between the effort…
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