Skills Lesson: Forming a Valid Hypothesis Answers

It is rare to prove a hypothesis as incorrect through experimentation.

Julia notices that the “check engine” light comes on while driving her car on days with temperatures of over 100 degrees. What could be a plausible explanation for this?a.Her engine needs to be replaced.b.Her engine overheats when the temperature outside is over 100 degrees.c.Her engine cannot withstand high temperatures.d.Julia cannot drive her car on days when it is over 100 degrees outside.

A valid hypothesis must be testable.

During the summer, after a big storm blows through, David notices leaks from his air conditioner. Which of the following is the best explanation of the contributing factor for this problem? a. The storm damaged the air conditioner. b. The make and model of the air conditioning unit is not compatible for his house. c. David has been using his air conditioner too much this summer. d. The air conditioner was vandalized. Please select the best answer from the choices provided