inventions and discoveries 3 peter and rafa
Post on 16-Jan-2015
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- 1. An invention is somethig that a person create but didnt exist previously, normally is a machine or a useful product.
2. Is something that exist previously and someone find it. 3. An invention is something that a person create and a discovery is something that exist previously. 4. Discoveries Inventions Electricity Light Bulb 5. Discoveries Inventions Fire Lighter X-ray X-Ray Machine