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Date: _____________________________
Controlled Experiment
Directions: Develop a controlled experiment concerning each of the following hypothesis.
1. Problem: Does using Gold Medal Flour in a recipe allow the cake to bake 20% faster?
2. Hypothesis: _______________________________________________________________.
3. Controlled Experiment:
a). What is the experimental Variable? ___________________________________
b). List the necessary materials that will be use in the experiment. ( Think, Don't leave anything out no matter how small it may seem.) _____________________________________________________________________________
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c). Write out the steps of the experiment. Make sure you write them out so any one can follow them.
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d). Examine the steps of the experiment very carefully. Explain why you think they make the experiment a controlled one.
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1. Problem: Will using Growmore fertilizer increase the yield of a Bean crop.
2. Hypothesis: ________________________________________________________________
3. Controlled Experiment:
a). What is the experimental variable? _____________________________
b). List the materials needed to carry on the experiment. ( Think, Don't leave anything out no matter how small it may seem.) _____________________________________________________________________________
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c). Write out the steps of the experiment so that anyone can follow them.
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d). What are the controls used in the above experiment? _________________________________
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e). Why were they necessary? _____________________________________________________
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