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Scientific Method - Effect of Sunlight on Plant Growth Experiment

Terms in this set (10)

observation
Plants in the shade are shorter than plants in the sun.
inference
Sunlight is related to plant growth.
hypothesis
If the amount of sunlight is increased, then plant growth will increase.
experiment
Set up several of the same kind of plants in areas that receive different amounts of light
independent variable
changing the amount of sunlight each plant receives
dependent variable
measuring the amount of growth that occurs in each plant
control group
group of plants that receives no sunlight during the experiment
constants
all plants will be given the same amount of water, all plants will be planted in the same type of soil, all plants will be the same type of flower
data
plant 1 grew 8 cm, plant 2 grew 12 cm, plant 3 grew 2 cm
conclusion
The hypothesis that plant growth increases as the amount of sunlight increases was supported by the data. Plant 3, which was placed in a cabinet, only grew 2 cm. Plant 2, which was in full sunlight, grew 12 cm.
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