Problem

The problem is the question that asks what is the purpose of the experiment.

Continue reading "Problem"

The question should have:

1. the purpose of the experiment
2. the items to be studied (independent variables)
3. how the dependent variables will be studied or observed
4. the conditions of the experiment (constant variables)

In the ice cub example the problem could be written as:

"Do small pieces of ice melt in a shorter time than a whole ice cube if the are both exposed to room temperature air?"

The independent variables the size of the pieces of ice.  The constant variable is the temperature of the room.  The dependent variable is the time it takes the ice to melt.  The control is the whole ice cube. 

If you aren't sure about terms like controls or dependent variables, you can find out by reading  What is an Experiment.

Be sure to check that the problem has been worded as a question.

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