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John wonders if the amount of sugar used in the recipe will affect the size of
the bread loaf? John researches the areas of baking and fermentation and tries to
come up with a way to test his question. He keeps all of his information on this
topic in a journal. John talks with his teacher and she gives him an Experimental
Design Diagram to help him set up his investigation. After talking with his
teacher and conducting further research, he comes up with a hypothesis.
“If more sugar is added, then the bread will rise higher.”
His teacher helps him come up with a procedure and list of needed
materials. She discusses with John how to determine the control group. Because
his grandmother always used 50g. of sugar in her recipe, John is going to use
that amount in his control group. John’s teacher reminds him to keep all other
factors the same so that any observed changes in the bread can
be attributed to the variation in the amount of sugar.
The constants in an experiment are all the factors that the experimenter
attempts to keep the same. They might include other ingredients to the bread
recipe, oven used, rise time, brand of ingredients, cooking time, type of pan used,
air temperature and humidity where the bread was rising, oven
temperature, age of the yeast.
John writes out his procedure for his experiment along with a materials list
in his journal. He has both of these checked by his teacher where she checks for
any safety concerns.
Trials refer to replicate groups that are exposed to the same conditions in
an experiment. John is going to test each sugar variable 3 times.
John comes up with a table he can use to record his data. John gets all
his materials together and carries out his experiment. John finds that 70g. of
sugar produces the largest loaf. His hypothesis is accepted. John tells his
grandmother about his findings and prepares to present his project in Science
class.

Based on the story you have read above ,fill out on how Jhon conducted the following steps in scientific method.

Problem:
Observation:
Hypothesis:
Experiment:
Analyze the result:
Conclusion:
Communicate the result:​

Sagot :

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