Question:

What would be a hypothesis for a this experiment?

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The Effect of Hours of Light Exposure on Plant Height.

The Experiment is: Jocelyn’s favorite flowers are daisies. She read that daises would achieve optimal height if they are exposed to 8 hours of light.

In her experiment, Jocelyn planted 30 daisy seeds – 10 seeds in 3 identical pots. Jocelyn watered all the seeds with 50 ml of water every day and kept all of the pots in the same room.

She put Pot A in her closet and the seeds received no light.

She put Pot B under a lamp so the seeds received 24 hours of light.

She put Pot C under a lamp when she went to school, from 7am – 3pm so that the seeds received 8 hours of light.

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2 ANSWERS


  1. Effect of light energy on germination of seeds.


  2. A hypothesis is essentially a 'scientific guess', a prediction as to what the results of an experiment will be. For example, I might take a feather and a bowling ball up on top of a tall building, and before dropping them make the hypothesis that the bowling ball will hit the ground before the feather does. For the experiment you've outlined there, a good hypothesis would be that the daisies in Pot C will grow faster than the ones in Pot B which will grow faster than the ones in Pot A. An expert botanist might be able to add more detail to a hypothesis, but you have to be careful because the idea is to try to predict the actual outcome beforehand and then see where you made a mistake in your theory if the prediction is wrong.

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