Recursos educativos chemical página 20

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End-of-unit evaluation - Matter and its properties
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All the objects you can see around you are made up of matter. However, they are made up of different types of matter. These are called substances. Objects, which are made up of matter, can be physically…
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Summaries - The Earth, a Living Planet
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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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Summaries - Energy
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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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True or false. Matter and materials
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Are the following sentences true or false? Liquids cannot change their shape. If we apply enough force to a solid, it will change its shape or break. Ice changes into liquid water under any temperature.…
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Look. The composition of living matter
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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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Match. Blood
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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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Unit 8: The Earth, a Living Planet
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Asexual reproduction (n): the process of reproduction of a single organism by itself. autotroph (n): an organism that produces its own food for nutrition. bioelement (n): any of the chemical elements…
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Look and answer. Industry in Spain
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Look at the map and answer the questions: Which are the most important industrial regions in Spain? Where are most of the industrial regions located: in the interior of Spain or near the coast? What are…
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The geosphere
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What is the geosphere made of? The geosphere is made up of rocks. Rocks are natural materials. They are usually hard and dense, and are made up of chemical substances called minerals. For example,…
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Final self-evaluation 1.6 - Matter and Materials
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Complete the following sentences with the missing words: A group of atoms is called a . move around the nucleus of an atom. are made up of two or more different chemical elements. The formula for is…
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