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The five groups of vertebrates
EduBook Organización
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Fish have an elongated body and swim using their fins. Amphibians live part of their life in water. Their skin is moist and slippery. Reptiles crawl to move around. Their bodies are covered with hard…
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Understanding the text (II)
EduBook Organización
- 3710 visitas
Correct the false ones. The little man doesn’t want Dorothy to see the Wizard. Dorothy sees a big head with a big body, arms and legs. The Wizard wants Dorothy to kill someone. Dorothy doesn’t want…
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End-of-unit activities - Matter: Mass, Volume and Density
EduBook Organización
- 3988 visitas
All objects are made up of matter. As a consequence of this, they have mass, occupy a certain volume and have a certain density. Mass, volume and density are magnitudes. This means they have values…
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Understanding the text (I)
EduBook Organización
- 1 lo usan
- 3497 visitas
Are these sentences true or false?. The little man doesn’t want Dorothy to see the Wizard. Dorothy sees a big head with a big body, arms and legs. The Wizard wants Dorothy to kill someone. Dorothy…
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End-of-unit evaluation - Matter: Mass, Volume and Density
EduBook Organización
- 3982 visitas
All objects are made up of matter. As a consequence of this, they have mass, occupy a certain volume and have a certain density. Mass, volume and density are magnitudes. This means they have values…
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Air and life
EduBook Organización
- 3968 visitas
We need air to breathe Humans and other animals that live on land need air to live. When we breathe, we take oxygen from the air. With this oxygen and with the food we eat, our body has the energy it…
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Learn. Measure your heart and breathing rates
EduBook Organización
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What do we do? Our circulatory and respiratory systems are constantly adapting to our body's needs. You can test this with the following experiment. While you are resting, check your pulse and count…
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Introduction - Matter: Mass, Volume and Density
EduBook Organización
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All objects are made up of matter. As a consequence of this, they have mass, occupy a certain volume and have a certain density. Mass, volume and density are magnitudes. This means they have values…
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Complete - Remember
EduBook Organización
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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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Blood circulation (II)
EduBook Organización
- 3693 visitas
The heart The heart is the organ that pumps blood to all the cells in our body. It is about the size of a closed fist. Its walls are made of muscle tissue. The heart contains four chambers: The two top…