3. The scientist applies his/her present knowledge to predict the effect of
the independent variable or the dependent variable.The prediction is a
statement of the expected results of the experiment based on the
hypothesis.The prediction is often an "if/ then statement."
For example: If increasing fertilizer increases the number of
beans, then coffee bean plants treated with more fertilizer will have
more beans.
Predictions provide a reference point for the scientist. If
predictions are confirmed, the scientist has supported the hypothesis. If
the predictions are not supported, the hypothesis is falsified. Either way,
the scientist has increased knowledge of the process being studied
4. The scientist has learned that the prediction (greater applications of fertilizer
caused an increased number of beans) is true only up to a point.The scientist
may now wish to identify this point specifically, i.e., find the optimum amount of
fertilizer to apply.The scientist may also want to extend the research to a new
direction and find out why higher fertilizer applications actually cease having an
effect on the number of beans produced.
Here are some steps to think about to make a dependable prediction:
1. Collect data using your senses, remember you use your senses to make
observations.
2. Search for patterns of behavior and or characteristics.
3. Develop statements about you think future observations will be.
4. Test the prediction and observe what happens.
5. Þ Prediction is a guess of what might happen in the future
which can be made even without evidence.
Þ Predictions provide a reference point for the scientist. If
predictions are confirmed, the scientist has supported the
hypothesis. If the predictions are not supported, the
hypothesis is falsified. Either way, the scientist has increased
knowledge of the process being studied.
6. Question What will happen
What actually
happens
What do you think will
happen if you add eggshells
to vinegar?
What do you think will
happen if you put a drop of
food coloring into a beaker
with cold water.
