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Summaries - The skeletal-muscular system
EduBook Organización
- 2756 visitas
1. The skeleton The skeleton is made up of bones, joints and cartilage. The skeleton supports our body and gives it shape. It also helps us to move and it protects our internal organs. Our bones are the…
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The skeleton
EduBook Organización
- 2629 visitas
Our skeleton is made up of bones, joints and cartilage. The skeleton's main functions are: To support our body and give it shape. To help us to move, because our muscles are connected to our bones.…
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Think about it. Energy transfer
EduBook Organización
- 2566 visitas
Remember what you have studied in this section and answer the questions: Which has more internal energy: a hot body or a cold body? Explain why. With a classmate, discuss why we can start a fire if we…
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Complete. Cellular respiration
EduBook Organización
- 2550 visitas
Complete this text with the correct words: lungs - cellular - bloodstream - carbon dioxide - energy - exhale - blood vessels - heart Blood containing oxygen passes from the to the . The heart pumps the…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2510 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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Summaries - Obtaining and using energy
EduBook Organización
- 2439 visitas
1. Forms of energy Energy is a property of matter which gives it the ability to produce change in its own physical and chemical properties and in those of other bodies... The main forms. of energy are:…
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Match. The formation of the USSR
EduBook Organización
- 2357 visitas
Match each definition with a concept: A federal state that brought together all the nationalities of the old Russian Empire. The highest authority (legislative power), elected by indirect universal…
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Introduction - Machines and structures
EduBook Organización
- 2317 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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End-of-unit activities - Machines and structures
EduBook Organización
- 2315 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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