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Complete - Remember
EduBook Organización
- 3576 visitas
Complete: There are two types of machines: machines and machines. Levers, wheels, ramps and are examples of simple machines. Compound machines are made up of two or more machines working together.…
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Experiment. Electromagnet
EduBook Organización
- 3012 visitas
Wrap a piece of copper wire around a steel nail and connect it to a battery so that electrical current flows through the wire. You have made a simple electromagnet. You can use your electromagnet to…
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End-of-unit evaluation - Energy
EduBook Organización
- 2884 visitas
The Sun is the Earth's main energy source. The Sun provides plants and animals with light and heat. This means that they can grow, develop and live on Earth. Heat energy has other effects on…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2902 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 - Energy
EduBook Organización
- 2875 visitas
The Sun is the Earth's main energy source. The Sun provides plants and animals with light and heat. This means that they can grow, develop and live on Earth. Heat energy has other effects on…
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Introduction - Energy
EduBook Organización
- 2859 visitas
The Sun is the Earth's main energy source. The Sun provides plants and animals with light and heat. This means that they can grow, develop and live on Earth. Heat energy has other effects on…
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Summaries - Obtaining and using energy
EduBook Organización
- 2828 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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End-of-unit activities - Machines and structures
EduBook Organización
- 2698 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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Introduction - Machines and structures
EduBook Organización
- 2639 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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Energy and forces
EduBook Organización
- 2618 visitas
Energy produces changes Energy produces changes when it acts on objects. For example: Heat energy changes the state of objects. Ice cream will melt at room temperature. Electrical energy generated by…
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