Question

1. which terms best matches this definition? -this will test the hypothesis.(after you make a hypothesis)

control
observation
controlled experiment
dependent variable
independent variable
3.) which terms best matches this defintion? - this part of an experiment will change based upon what a scientist manipulates in the experiment. this will be the results or data taken in the experiment. what you are observing or measuring at the end.
independent variable
control
dependent variable
hypothesis

Explanation:

1. A controlled experiment is used to test a hypothesis. It allows for manipulation of variables while keeping other factors constant.
2. The dependent variable changes based on the manipulation of the independent variable by the scientist and represents the results or data measured at the end of the experiment.

Answer:

1. controlled experiment
2. dependent variable