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Which of the following are probable sources of error in a scientific experiment? Check all of the boxes
that apply
A student uses different thermometers throughout a two-week experiment.
Data is analyzed carefully and double-checked
The experimental design does not test the proposed hypothesis.
Leaves were collected in a random pattern from all parts of a tree.
A control group of plants gets more light than the experimental group.
A scale was recalibrated before each day's measurement
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Answer :

Answers: A.) A student uses different thermometers throughout a two-week experiment.

C.) The experimental design does not test the proposed hypothesis.

E.) A control group of plants gets more light than the experimental group.

pstnonsonjoku

An experiment confirms or disproves hypothesis.

Scientific information are gleaned from carefully controlled experiments. Experiments either confirm or disprove a hypothesis. This must be the aim of experimental design.

An experiment often involves the experimental group and and the control group. If a sample is to be taken, the sample must be taken in such a manner that it is representative of the whole.

The following show the probable sources of error in a scientific experiment;

  • A student uses different thermometers throughout a two-week experiment.
  • The experimental design does not test the proposed hypothesis.
  • A control group of plants gets more light than the experimental group.

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