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End-of-unit evaluation - Matter and materials
EduBook Organización
- 2475 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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Look. The composition of living matter
EduBook Organización
- 2403 visitas
The following graph shows the proportion of some chemical elements in living things and in the Earth's crust: What are the three most abundant elements in living things? What are the three most…
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Calculate. Matter and its properties (2)
EduBook Organización
- 2323 visitas
Calculate the mass of water produced when 20 g of hydrogen reacts completely with 160 g of oxygen. g of water.
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Final self-evaluation 1.4 - Matter and Materials
EduBook Organización
- 2310 visitas
Complete the sentences with the missing words: Changes of state happen through the intervention of . The change from solid to liquid happens when a substance is . The change from liquid to solid happens…
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Final self-evaluation 1.2 - Matter and Materials
EduBook Organización
- 2297 visitas
Are the following sentences true or false? Solids cannot be compressed. Gases can be compressed. The forces that hold particles together in liquids are stronger than those in solids. Solids have a…
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The states of matter and their properties
EduBook Organización
- 2259 visitas
1.1. Matter All things in nature are made of matter. Matter is anything that occupies space and can be weighed. Matter is made of different substances with different properties. 1.2. States of matter…
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Investigate. Matter: atoms, molecules and crystals
EduBook Organización
- 2191 visitas
The LHC (Large Hadron Collider) is the world's biggest particle accelerator. It is on the border between Switzerland and France and is 100 m underground. This is an interactive game which explains…
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Write chemical equations. Matter and its properties
EduBook Organización
- 2178 visitas
In order to write the chemical formula for a chemical reaction correctly, we have to write the formulas of the reagents, followed by an arrow and the formulas of the products. [...]
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Materials and their properties - Matter and materials
EduBook Organización
- 2171 visitas
What are materials? Materials are the different types of matter that objects are made from. Some materials, like wood, cotton and wool, are found in nature. They are called natural materials. We use…
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Final evaluation 1.7 - Matter and Materials
EduBook Organización
- 2102 visitas
Give three examples of pure substances and three examples of mixtures. Explain which technique you would use to separate the components of each mixture.
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