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The Scientific Method a series of logical steps to follow in order to solve a problem – no right or wrong way, as long as it is logical usual steps – Observe.

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Presentation on theme: "The Scientific Method a series of logical steps to follow in order to solve a problem – no right or wrong way, as long as it is logical usual steps – Observe."— Presentation transcript:

1 The Scientific Method a series of logical steps to follow in order to solve a problem – no right or wrong way, as long as it is logical usual steps – Observe – Question – Research – Hypothesize – Experiment – Analyze – Conclude

2 simple things you notice in nature – Newton noticed things fall to the ground. – Darwin noticed some creatures survive better. – Fleming noticed bacteria wouldn’t grow around the mold. – Carver noticed nitrogen content in the soil is higher around some legumes (peanuts). Observe

3 decide what you want to know – why do things fall? – why do they survive? – why won’t the bacteria grow? – why is the nitrogen content higher? Question

4 gather everything already known – commonly known information – experiments done by others – documented observations Research

5 predict an answer to your question – usually and “if ______, then _____” statement “If all objects fall to earth at the same rate, then some constant force is pulling on them.” Hypothesize

6 plan a carefully controlled experiment – determine your variable variable - anything that can change in an experiment a good experiment has only ONE variable – document your plan – document your equipment – perform the experiment – RECORD your detailed observations what changed? what didn’t? measurements where appropriate Experiment

7 organize your data – create tables or graphs if appropriate does the data support your hypothesis? – if yes, do the experiment again to gain further evidence – if no, do the experiment again to check for mistakes – still no? rethink your hypothesis Analyze

8 summarize what you have learned – detail what your observations and data told you – explain what this information means and how it supports or denies your hypothesis – include ideas for new experiments to Conclude

9 NO experiment is a failure! – even if our hypothesis is proved wrong, we have still learned something – discoveries from “failed” experiments North America penicillin Failure or Success?


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