Question

Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don’t stick. He guesses that the door of the refrigerator is made of a nonmagnetic substance. What stage of scientific investigation does his guess represent? (its B right ?)

A.

ask questions

B.

construct a hypothesis

C.

explain the results

D.

make observations

Answer 1

Right ! His guess is a hypothesis. It may be right, and it may be wrong.

A hypothesis has to be TESTED by experimenting. If you do one or two experiments to test your hypothesis, and the results of the experiments look like they confirm/support the hypothesis, THEN you've got yourself a "theory".

Answer 2

B. Construct a hypothesis