Inventions and discoveries Sofia's

Download Inventions and discoveries Sofia's

Post on 16-Jan-2015

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oral presentation

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1. An invention is a new, useful thing or process wich is made by humans and didnt exist before. EXAMPLES Computer Telephone Television Clock 2. A discovery is a new, useful thing or process that was hidden or unknown. EXAMPLES Penicilin DNA Fire Electricity 3. The main difference is that discoveries existed before, but we didnt know about them, and inventions were created artificially.