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Machines and structures
EduBook Organización
- 5507 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 evaluation - The skeletal-muscular system
EduBook Organización
- 3701 visitas
Our skeleton is made up of bones. These are living organs in our body that grow at the same rate as we grow. If they break, they can mend themselves. Some bones protect important organs in our body,…
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End-of-unit activities - The skeletal-muscular system
EduBook Organización
- 3672 visitas
Our skeleton is made up of bones. These are living organs in our body that grow at the same rate as we grow. If they break, they can mend themselves. Some bones protect important organs in our body,…
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Before you start - The skeletal-muscular system
EduBook Organización
- 3416 visitas
Didactic objectives Understand the functions of the human skeleton and recognise that it is made up of bones and cartilage. Identify the three types of joints. Understand the function of ligaments.…
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Summaries - The Earth, a Living Planet
EduBook Organización
- 3346 visitas
1. The beginning of life The Earth is the only planet in the Solar System that has all the conditions for life to develop. These conditions are its size, its distance from the Sun and the existence of…
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Arthropods (I): characteristics
EduBook Organización
- 3202 visitas
4.1. Arthropods Arthropods are the most numerous and diverse group of invertebrates. They have adapted to all kinds of environments. The body of an arthropod has three parts: the head, thorax and…
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Introduction - The skeletal-muscular system
EduBook Organización
- 3085 visitas
Our skeleton is made up of bones. These are living organs in our body that grow at the same rate as we grow. If they break, they can mend themselves. Some bones protect important organs in our body,…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2828 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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Echinoderms
EduBook Organización
- 2721 visitas
3.1. Echinoderms Echinoderms are animals that live at the bottom of the sea. They do not have a head. They have an external skeleton consisting of plates with spines. The majority of echinoderms have a…