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Complete. Changes of state
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Complete the text with the correct words: evaporation fusion condensation temperature solidification Substances change state because of changes in . The change from solid to liquid is called , and the…
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True/false. Chemical reactions
EduBook Organización
- 1493 visitas
Decide if the following statements are true or false: Chemical reactions are processes that turn certain substances into other liquids. ➝ Coal is an example of a combustible substance. ➝ Oxidation…
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True/false. Mixtures
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- 1455 visitas
Decide if the following statements are true or false: Seawater is a homogeneous mixture, because we cannot see the individual components. ➝ Granite is made up of different components which all look…
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What some types of minerals are like - The Earth's Crust
EduBook Organización
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Precipitates Many minerals are formed by precipitation. This occurs when water evaporates or when dissolved substances stop being soluble and fall to the bottom of the sedimentary basin. Some of these…
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Final self-evaluation 04 - Matter and materials
EduBook Organización
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Decide if the following statements are true or false: In a homogeneous mixture we cannot see the individual components. ➝ In a heterogeneous mixture we can see each component. ➝ Granite is a…
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Self-assessment T01 09 - Our planet Earth
EduBook Organización
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Complete the text with the correct words: grow – rocks – metres – plants – centimetres – humus – mineral Soil contains tiny fragments of , minerals and the decomposed remains of and animals.…
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Plant nutrition
EduBook Organización
- 2 lo usan
- 10914 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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Matter: Mass, Volume and Density
EduBook Organización
- 8993 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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Before you start - Plant nutrition
EduBook Organización
- 8409 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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Introduction - Plant nutrition
EduBook Organización
- 7961 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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