Observation:
"grass under a big tree. Or the grass beneath the roof usually do not grow. The grass in the vicinity at the light grows well
the problem:
."The sun is involved with the growing of grass?" "
" bacteria in culture dish believe slow growth not flourish if green mold in a Petri dish. "
. Example hypothesis"If we phenytoin SIL, petroleum, inhibit the growth of bacteria. Therefore, the bacteria will not thrive when RA phenytoin SIL Liam up included "
."If the sun was involved in the growth of grass grow bend So the grass area that is not the sun will not grow or die "
.Or "if the sun was involved in the growing of grass So the grass area receive sunlight to grow "
sample
.When predictions to answer "sunlight makes the grass grow So the grass was the sun will grow The grass is not the sun will not grow or die die ". So at this stage will be the stage to make sureBy may design the experiments as follows:
.
.The grass (or other plant species have, such as green beans to either the 2 group experiment) ปลูกในที sun. The one group used zinc to grow around to receive the sunlight.With don't get the sunlight) the control both water quantity in this group than 2 equally about 2 week. To observe and record the effect
.The experiment
variables or independent variable is sunshine
dependent variable is the grass growing (or the growth of grass)
variables to control, is the water content, the type of soil, the amount of soil, the type of pot planting, a type of grass
.Data were analyzed by using the average height of grass The number of leaves of grass We found that the sun will grow grass growing the grass who did not receive the sunlight will have yellow or whiteConclusion
.
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