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Unformatted text preview: cars 5. This gas is used in hospitals for argon anaesthetics 6. A gas that is put into bags of crisps to carbon dioxide stop them getting squashed Can you think of other ways these gases are used? Your next task is to make a chart with questions about these gases written on flaps with the answer under the flap. Can you design a fun, colourful and interesting question board? Teacher answers: 1. helium 2. argon 3. carbon dioxide 4. nitrogen 5. nitrous oxide 6. nitrogen...
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- Fall '11