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Describing and Explaining Patterns of Data in Graphs

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When you describe patterns on graphs you are describing how the dependent variable changes in relation to the independent variable

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Describing the pattern: The longer people train the higher their skill level

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The temperature of the water decreases  with time. As this is a curve shape you must also describe this It falls quickly at first but then goes down at a slower rate

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Number of bubbles produced by yeast in 1 min

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When you explain what a graph shows you are using your science knowledge to explain why the results show the pattern they do. There will usually be 2 or 3 marks for these questions

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At lower temperature the number of bubbles increases  BECAUSE THERE ARE MORE COLLISIONS BETWEEN THE YEAST AND THE SUGAR. At higher temperature the number of bubbles goes down BECAUSE THE HIGH TEMPERATURE STARTS TO KILL THE YEAST

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Number of bubbles produce by pond weed in 1 min

The number of bubbles goes down steadily A THERE IS LESS LIGHT ABSORBED BY THE POND WEED SO LESS PHOTOSYNTHESIS TAKS PLACE

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Number of bubbles produced by pond weed in 1 min

Describing and Explaining Patterns of Data in Graphs

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