Scientific+Investigation

__**Hypothesis**__- a temporary explanation or guess about what will happen in an experiment.

__**Background Information**__- research done before an experiment that provides enough information to form an educated hypothesis.

__**Control Group**__- the portion of the experiment done in a natural environment; it is used to compare your results to in order to see whether or not a change occurred. Constants-Something that stays the same within all variations of the experiment Experimental Variable- The variable in your experiment that is changed from the constant to the experiment Quantitative Data- Amounts collected, measurements, numbers Qualitative Data- Data
 * Positive control**- gives the result you are trying to achieve in the experiment.
 * Negative control**- leaving the experiment in a natural environment that you know will not achieve the targeted goal.