Question

Which of the following statements is true?

A)A hypothesis is created at the end of an experiment.
B)The dependent variable is changed by the experimenter.
C)The best hypotheses are written as answers to a question.
D)Observations are often used to form questions about the world.
PLEASE ANSWER ASAP

Answer 1

"D) Observations are often used to form questions about the world." is the true statement.

A is false because creating a hypothesis is the first step in an experiment, not the last.

B is false, the INdependent variable is the one changed by the experimenter.

C. is false because hypothesis are used to form the question, not answer them.

Answer 2

The answer is B. They are in control of the experiment, they can change it the variables to better help the experiment.