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Recursos educativos
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Nivel educativo
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Competencias
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End-of-unit evaluation - Energy
EduBook Organización
- 2070 visitas
The Sun is the Earth's main energy source. The Sun provides plants and animals with light and heat. This means that they can grow, develop and live on Earth. Heat energy has other effects on…
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Introduction - Energy
EduBook Organización
- 2015 visitas
The Sun is the Earth's main energy source. The Sun provides plants and animals with light and heat. This means that they can grow, develop and live on Earth. Heat energy has other effects on…
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Complete. Dilation and contraction
EduBook Organización
- 2003 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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Reflection and refraction of light
EduBook Organización
- 1994 visitas
Objects reflect light When light shines on an object, sometimes it passes through the object and other times it reflects off it. When an object reflects light, we can see it. Mirrors A mirror is a…
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Unit 3: Medieval cities
EduBook Organización
- 1956 visitas
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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Answer. Light and sound
EduBook Organización
- 1 lo usan
- 1778 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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Understanding Uncertainty
Tiching explorer Organización
- 2397 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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Unit 9: Motion and forces
EduBook Organización
- 1889 visitas
Accelerate (v): to go faster; to increase in velocity. apparent weight (n): the total sum of forces acting on a body. area (n): a quantity which expresses the extent of a twodimensional surface.…
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A microscope
EduBook Organización
- 1879 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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Summaries - Machines and structures
EduBook Organización
- 1842 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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