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End-of-unit evaluation - Matter and materials
EduBook Organización
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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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Complete. Dilation and contraction
EduBook Organización
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Complete the text with the correct words: heat contraction dilations mass temperature dilation material When objects heat up, the amount that they increase in temperature depends on three things, their…
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Summaries - Machines and structures
EduBook Organización
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1. Electrical current An object becomes electrically charged when it contains an electrical charge. Some objects become electrically charged when we rub one against the other. For example, when you rub…
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Answer. Light and sound
EduBook Organización
- 1 lo usan
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Answer the following questions in your notebook: What is light? Which of our senses perceives it? What does our image look like in a mirror? What do we use a magnifying glass for? Why do objects have…
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Match. 19th century artistic trends
EduBook Organización
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Match each definition with the correct artistic trend: It was concerned with faithfully describing the reality of the age. Its aesthetic was above all elegant and refined. It used forms inspired by…
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Understanding Uncertainty
Tiching explorer Organización
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With this lesson students will study the Heisenberg uncertainty principle and how it can only be applied to the subatomic world, not to the ordinary world of macroscopic objects. In the quantum…
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The propagation of heat
EduBook Organización
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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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A microscope
EduBook Organización
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A microscope is an instrument that magnifies very small objects, like cells, so that we can observe and study them. The main part of this instrument is a metal tube with a lens at each end: the eyepiece…
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Unit 3: Medieval cities
EduBook Organización
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Altarpiece (n): a work of art located above and behind the altar of a church. apprentice (n): a person who acts as assistant and student to a skilled craftsman. artisan (n): a craftsman skilled at…
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