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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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Summaries - Machines and structures
EduBook Organización
- 2627 visitas
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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Complete. Dilation and contraction
EduBook Organización
- 2589 visitas
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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Match. 19th century artistic trends
EduBook Organización
- 2487 visitas
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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Answer. Light and sound
EduBook Organización
- 1 lo usan
- 2257 visitas
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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The propagation of heat
EduBook Organización
- 2451 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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Understanding Uncertainty
Tiching explorer Organización
- 3270 visitas
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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Materials and their properties - Matter and materials
EduBook Organización
- 2419 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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A microscope
EduBook Organización
- 2391 visitas
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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