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Unit 9: The first civilisations: Mesopotamia and Egypt
EduBook Organización
- 3039 visitas
Adobe (n): a mixture of clay and straw used to make bricks for building. afterlife (n): the continuation of life after death in, for example, a heaven or underworld. chamber (n): a large underground or…
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Food chains and food webs
EduBook Organización
- 3018 visitas
To study an ecosystem, it is important to know how living things interact with each other. The most important interaction between the living things in an ecosystem occurs in the food chain. A food chain…
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Organisation and functions of living things
EduBook Organización
- 2976 visitas
4.1. Organisation of living things A multicellular organism is made up of millions of very different cells that specialise in certain functions. For example, neurons specialise in transmitting nerve…
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Complete. Basins and archipelagos
EduBook Organización
- 2939 visitas
Complete these texts: The lands formed from basins are very because sediment from are deposited there as well as those of origin. The Ebro basin, for example, was a many years ago, and that of the…
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True or false. Matter and materials
EduBook Organización
- 2852 visitas
Are the following sentences true or false? Liquids cannot change their shape. If we apply enough force to a solid, it will change its shape or break. Ice changes into liquid water under any temperature.…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2834 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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Writing (FCE)
EduBook Organización
- 2707 visitas
Laura is said to be the ‘ideal woman’ of Victorian England. Using her as your model, write a description (120-180 words) of what you think the ideal Victorian woman was like. Use these questions to…
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Light, shadow and penumbra
EduBook Organización
- 2798 visitas
3.1. Linear propagation of light Light is an electromagnetic wave that propagates in a straight line in all directions. Each of the directions that light propagates in is called a ray. This phenomenon…
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Video: Introduction to Evolution and Natural Selection
Khanacademy Organización
- 4984 visitas
This 17 minute video introduces the basics of Darwin Theory in plain English, especially how the ape evolved into human beings. Natural Selection means the survival of the aptest. There are always…
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