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Compound machines
EduBook Organización
- 4111 visitas
What are compound machines? Compound machines are made up of various simple machines. Scissors, pliers, gears, bikes and cars are examples of compound machines. Pliers Pliers are made up of two levers…
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Activities - Machines
EduBook Organización
- 4032 visitas
We use machines in many different ways. Machines help to make our work easier. We use them every day. We use different machines for different things. What we use a machine for is called its function. We…
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Introduction - Machines
EduBook Organización
- 3621 visitas
We use machines in many different ways. Machines help to make our work easier. We use them every day. We use different machines for different things. What we use a machine for is called its function. We…
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Using and recycling materials
EduBook Organización
- 3554 visitas
Using materials The objects we use are made from different materials. The following materials are the ones that we use the most often. Plastic Plastic is an artificial material. We use oil to make…
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Unit 5: Weather and climate
EduBook Organización
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Altitude (n): the height of land measured from sea level. atmosphere (n): a gaseous layer that surrounds the Earth. climate (n): the atmospheric conditions that exist in a region over a long period of…
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Remember - Machines
EduBook Organización
- 3272 visitas
We use machines in many different ways. Machines help to make our work easier. We use them every day. We use different machines for different things. What we use a machine for is called its function. We…
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Non-renewable energy sources
EduBook Organización
- 2837 visitas
Non-renewable energy sources Coal Coal is a sedimentary rock because it is made up of the remains of plants and animals that died millions of years ago. We can extract coal by digging mines. When we…
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True/False. Work it out
EduBook Organización
- 2727 visitas
Copy only the true statements from the following list into your notebook and say why they are true: Coal and oil, as well as causing pollution, are running out and cannot be renewed. The water used in…
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