Question

if you do not control important variables in an experiment, what might happen?
c) the results may be unreliable or misleading
a) the results will be clear and easy to understand
d) the independent variable will not change
b) the experiment will always give the same result
what is a controlled variable?
a) the variable that changes during the experiment
d) the variable that causes the experiment to fail
c) the variable that is measured
b) a variable that is kept the same to make the test fair

Explanation:

In an experiment, controlling variables is crucial. If important variables are not controlled, extraneous factors can influence the results, making them unreliable or misleading. A controlled variable is kept constant throughout the experiment to ensure fairness and accurate comparison.

Answer:

1. C) The results may be unreliable or misleading
2. B) A variable that is kept the same to make the test fair