Exit Ticket 9/11-12 Chem a Volatile History
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What is your First Name? *
What is your Last Name? *
What is your class period? *
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Use each scientist only once as you answer the following questions on the history of the elements
Which chemist discovered the element Phosphorus? *
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Which chemists'  discoveries lead to the creation of matches or fire on demand? *
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This scientists experiments with "airs" lead to the discovery of the 1st element that was a gas - hydrogen, which is colorless, odorless, tasteless, but very flammable. *
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This chemist experimented with heating mercuric oxide and discovered pure oxygen gas which he 1st shared with a mouse *
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This chemist used the scientific method as he experimented in his very equipt lab.  From his observations he was able to define what an element is. *
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This chemist used electricity to isolate the element potassium for the first time. *
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In your own words describe an element *
Next class will you dress appropriately for LAB work? *
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