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Tajo river
Esdres Jaruchik Organización
- 765 visitas
Video that shows images of the Tajo river from its source to its mouth.
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Correct. Heat
EduBook Organización
- 1742 visitas
Correct the following sentences: The Sun is an artificial source of heat. The Sun is source of heat. A radiator is a natural source of heat. A radiator is source of heat. Heating an object decreases its…
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Match. Origins of heat
EduBook Organización
- 2708 visitas
Choose the correct answer: What other words do we use to describe heat? What is a heat source? How is the Sun a heat source? Why when we rub two sticks of wood together do we generate fire?
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Choose. The history of energy
EduBook Organización
- 2641 visitas
Choose the correct answer: What was the first source of energy for humans? Which machine ushered in the industrial revolution? What is the most important source of energy for the Earth, and not just for…
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Match. Production of shadows
EduBook Organización
- 1753 visitas
Match the sentence halves: The rays of sun on a cloudy day, or producing shadows... The penumbra... A point light source projected... An extended light source projected... A light ray...
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Sigil
Tiching explorer Organización
- 3 lo usan
- 5575 visitas
Sigil is a multi-platform ePub ebook editor (Windows, Linux and Mac). It's free and open source software.
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Complete. Light and shade
EduBook Organización
- 3744 visitas
Complete the text. Light is a that propagates in a line in all directions. We can experiment with the production of using a light source and an extended light source. In a point light source, we see…
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How plants grow
Skoool Internacional Organización
- 5 lo usan
- 3572 visitas
In this interactive science lesson we help plants grow by correctly choosing its source of food an energy.
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Check what I know
EduBook Organización
- 2914 visitas
Match the words below with each renewable energy source: hydroelectric power station → solar panels → wind farms → reservoirs → wind turbines →
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Shadow simulator
Tiching explorer Organización
- 4959 visitas
Online resource that allows us study shadows. We can experiment with the proximity of the object to the light source.
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