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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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Summaries - Energy
EduBook Organización
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1. Energy Energy is the power that causes change in things and allows us to carry out work. Energy is produced by energy sources. The main source of energy on Earth is the Sun. Energy exists in several…
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End-of-unit activities - Matter and materials
EduBook Organización
- 2986 visitas
Everything around us is made up of matter. Matter can be found in three states: solid, liquid and gas. The air we breathe is a gas, the water in rivers and seas is a liquid, and the rocks are in a solid…
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Rock types
EduBook Organización
- 2951 visitas
Sedimentary rocks Common salt is made when sea water evaporates. It is extracted from salt mines. Sandstone is a sedimentary rock made up of grains of sand that are held together by other mineral…
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Introduction - Matter and materials
EduBook Organización
- 2824 visitas
Everything around us is made up of matter. Matter can be found in three states: solid, liquid and gas. The air we breathe is a gas, the water in rivers and seas is a liquid, and the rocks are in a solid…
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Initial evaluation 2 - The Hydrosphere
EduBook Organización
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Complete the text with the missing words: Seawater is mainly made up of water and chloride. The water in rivers contains substances compared with the water in seas and oceans. At the poles and in…
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End-of-unit evaluation - Matter and materials
EduBook Organización
- 2389 visitas
Everything around us is made up of matter. Matter can be found in three states: solid, liquid and gas. The air we breathe is a gas, the water in rivers and seas is a liquid, and the rocks are in a solid…
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The propagation of heat
EduBook Organización
- 2192 visitas
Heat transfers from a hot object to a cold object by means of three mechanisms: conduction, convection and radiation. 6.1. Conduction Heat is transmitted through solid substances by conduction (figure…
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Match. Blood
EduBook Organización
- 2174 visitas
Match the definitions to the terms: They are the most common type of cell in the blood. They are round and red in colour. It is a transparent liquid which is mostly water. It transports nutrients to all…
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