Question

directions: each of the following graphs contains an error. circle the error and then correct it on the blank graph below. 1. the difference between an experimental group and a control group is that... 2. are all scientific theories permanent? explain. 3. if a research group is testing out a new vitamin and they provide two experimental groups with different amounts of vitamins, what will the control group receive?

Explanation:

1. An experimental group is exposed to the variable being tested, while a control group is not exposed to the variable and is used for comparison.
2. Scientific theories are not permanent. They are based on current evidence and can be revised or replaced as new evidence emerges.
3. The control group in a study testing a new vitamin would receive a placebo (a substance with no active - vitamin ingredient) to serve as a baseline for comparison.

Answer:

1. The experimental group is exposed to the variable, the control group is not.
2. No, because they can be revised with new evidence.
3. A placebo.