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Scientific Method

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by

Leah Varghese

on 5 September 2013

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Transcript of Scientific Method

Scientific Method
Steps of the scientific method are questions, research, hypothesis, experiment, analysis, and conclusion.
Questions
Example: If you put a white carnation in colored water, will it change to the color of the water?
The start of an experiment always starts with a question. Scientists ask questions about the natural world.
Research
Hypothesis
In order for scientists to answer their questions, they need to research the main subject of the question.
Experiment
Scientists conduct experiments to test the hypothesis to see if it is true. They collect data while conducting experiments.
Example: If a white carnation is put in to a cup of colored water, then it will begin to change to the color of the water because of the process of transpiration.
Example: Materials: 1 white carnation, 2 vases of water, food coloring(in our case red), and a knife
Procedures: Put food coloring in one of the vases of water. Then, half way down the stem of the carnation, split the bottom half of the stem into two separate stems, so that it looks a little like a split end. Put one half in the vase with colored water and the other half in the vase with normal water then wait for about 3 to 4 hours.
Example: The subject of our question is how flowers transport water to the leaves, petals, and buds.
Research: Flowers "drink" water from their roots. The water then travels to the stem and into the leaves. One of the things that make water travel through plants is transpiration . Transpiration is when the water on petals and leaves evaporate. When this happens, the water that is evaporating pulls water up the stem into the petals and leaves.
Scientists ask questions to develop better
hypotheses. A hypothesis has to be
testable. A hypothesis is a proposed
explanation that tries to explain an
observation
Analysis
Conclusion
A conclusion is the outcome or result of an experiment based on the evidence that you got. Scientists use a conclusion to give an answer to the question.
Example: We did not do the experiment so we can not give the conclusion/answer to the question: If you put a white carnation in colored water, will it change to the color of the water?
After the experiment scientists analyze the data they collected during the experiment and start to draw conclusions.
Example: If we did the experiment, we would have recorded how the flower's color changed every hour.
INTO
The End
The Scientific Method
By Rachel S. and Leah V.
Full transcript