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Video: Recycling the Unrecyclable
Esl video Organización
- 1 lo usan
- 2776 visitas
This 5 minute video is part of an American Elementary School Ecology project to reduce the impact of landfills. They collect all plastic packagings and send them to Terracycle, a company which pays 2…
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Eyes on the skies / Seing the invisible
Xtec Organización
- 1933 visitas
When you listen to your favourite piece of music, your ears pick up on a very wide range of frequencies, from the deepest rumblings of the bass to the very highest pitched vibrations. Now imagine your…
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Mirrors and lenses
EduBook Organización
- 1701 visitas
Mirrors A mirror is a piece of flat glass. One side is covered with shiny metal, which reflects light. We see an image of the person or object in front of it. This is called reflection. We see our…
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Let's learn how to... - Heat, light and sound
EduBook Organización
- 1421 visitas
Do an experiment with heat What do we need? A metal knitting needle. A thick sewing needle. A toothpick. A cork. Three large books. A metal box. A candle. What do we do? Complete this experiment in a…
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Eyes on the skies / Bigger is better
Xtec Organización
- 3018 visitas
At night, your eyes adapt to the dark. Your pupils widen to let more light into your eyes. As a result, you can see dimmer objects, and fainter stars. Now imagine you had pupils one metre across.…