When may a scientist change a hypothesis? | …
New data can lead a scientist to change their hypothesis
They try to answer their question or problem.EXAMPLES:Question: Why do leaves change colors in the fall?Hypothesis: I think that leaves change colors in the fall because they are not being exposed to as much sunlight.Hypothesis: Bacterial growth may be affected by temperature.Hypothesis: Chocolate may cause pimples All of these are examples of hypotheses because they use the tentative word "may." However, their form in not particularly useful.
scientific ideas may change rapidly as ..
If these statements had not been written carefully, they may not have been a hypotheses at all.A better way to write a hypotheses is to use a formalized hypothesesExample: If skin cancer is related to ultraviolet light, then people with a high exposure to uv light will have a higher frequency of skin cancer.Example: If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color.Example: If the rate of photosynthesis is related to wave lengths of light, then exposing a plant to different colors of light will produce different amounts of oxygen.Example: If the volume of a gas is related to temperature, then increasing the temperature will increase the volume.These examples contain the words, if and then.