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The substance may be poisonous.
It is impossible to tell how long from the start of the experiment it was before all of the substance turned into a liquid without more information about the experiment. Perform the experiment again and use a timer to determine the length of time required to turn the substance into a liquid through heating.
without a hypothesis there is no experiment
I assume the term for something that is not changed during an experiment is called, the control. Any changes observed in the experiment, can be compare to the control, which is still be in the original form before the experiment began.
because it is important
When performing an experiment it is very important to have a control set. It is important to have a control set because it ensures that the experiment can be repeated as many times as necessary.
a control group assures that an experiment will be repeatable
The control experiment allows a standard of comparison for the experimental group
It's important to control your experiment so that you can be sure the results are due to the experimental variable (independent variable) and not something else.
If you do not have a control,then you cannot compare your test results.
The control is whatever you base your experiment on. No control = you can't compare your data to anything = good luck making sense out of your experiment. You aren't following the scientific method if there is no control.
in an experiment cantrolling variable is important as it helps to identify the limiting factors are present in the experiment, and also factor that do not necessarily affect the experiment.
so that it doesn't go out of control
The control is whatever you base your experiment on. No control = you can't compare your data to anything = good luck making sense out of your experiment. You aren't following the scientific method if there is no control.
Every experiment requires a control group. This is so that the group that is manipulated can be compared to a group that has had nothing done to it., in order to measure changes.
The density of any substance is constant, we don't control it. However, by finding the density of any substance, it can be used to help identify the substance.
The substance may be poisonous.