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Machines and structures
EduBook Organización
- 5513 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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The five senses
EduBook Organización
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We use our senses to find out information about the world around us. Human beings have five senses: touch, sight, hearing, taste and smell. We use different parts of our body for each sense. These body…
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Answer. Cells
EduBook Organización
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Remember what you have studied in this section and answer the questions: What is a cell? What are living things made up of? How many cells are there in the human body? What are the three parts of a…
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Self-evaluation 7 - Rivers and seas
EduBook Organización
- 4751 visitas
Which concepts do the following statements refer to: Rise and fall of sea levels caused by the Moon's magnetic influence on the waters of oceans and seas. Permanent body of water deposited in a…
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Before you start - Heat and temperature
EduBook Organización
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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End-of-unit activities - Heat and temperature
EduBook Organización
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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Natural Science
EduBook Organización
- 3 lo usan
- 3813 visitas
Unit 8: Nutrition, breathing and circulation allergy (n): a negative reaction in our body's immune system to a certain substance, like nuts or shellfish. breathing (n): the act of inhaling oxygen…
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Introduction - The five senses
EduBook Organización
- 4092 visitas
We use our senses to find out information about the world around us. Human beings have five senses: touch, sight, hearing, taste and smell. We use different parts of our body for each sense. These body…