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Mercury: a persistent threat to the environment and people's health
V&V Books Vicens Vives Organización
- 1508 visitas
Many people still associate mercury with thermometers and most also know that it is toxic. Because of its toxicity, mercury is on its way out from products in Europe but a lot of it is still circulating…
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Science Confirms Biblical Creation - Dr. Jason Lisle
Crm Gvs Docente
- 1 lo usan
- 546 visitas
Do you know Jesus? Jeshua our Mesias? From the day you were born, you have been on a quest. You have been searching for something more, because deep down inside, you have a sense that life must have…
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Work and energy. Machines
EduBook Organización
- 3935 visitas
2.1. Forces do work A force does work on a body when it displaces it (figure 1). This is because it changes its energy. For example, if we apply a force to a moving object, the velocity of this object…
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Simple machines
EduBook Organización
- 3603 visitas
What are machines? Machines make our work easier because they help us to do different things. There are two types of machines: simple machines and compound machines. Simple machines Levers A basic lever…
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Writing (PET)
EduBook Organización
- 3354 visitas
Answer both questions. Write a card to send to Maria. In your card, you should invite her to see the film of Treasure Island with you. arrange a time and place to meet before the film. describe the film…
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Misselthwaite Manor
EduBook Organización
- 3300 visitas
Mary Lennox is an English girl. She is nine years old and lives in India with her mother and father. She has got blonde hair and a thin white face. She is often ill. Her father is always busy with his…
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Summary (II)
EduBook Organización
- 3186 visitas
Rewrite the sentences in the Past Simple, as in the example: Holly sits on a bench and waits for Ben. → Holly sat on a bench and waited for Ben. Holly feels very stupid and runs away. The old woman…
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Eyes on the skies / Beyond Earth
Xtec Organización
- 3183 visitas
The Hubble Space Telescope it is by far the most famous telescope in history. And for good reason. Hubble has revolutionised so many fields in astronomy. By modern standards, Hubble's mirror is…
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English Bites / Worm farms
Xtec Organización
- 3152 visitas
Find out how to build your own worm farm. In Australia, over half of the household material that end up at the tip is organic waste, and when it is buried can lead to groundwater contamination and the…
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