Question

A restaurant is trying to decide whether it should serve its customers coffee

in ceramic mugs or Styrofoam cups. Which of the following is a testable
hypothesis to test one employee's prediction that "If we serve coffee in
Styrofoam cups, then it will stay warm longer than if we serve it in ceramic
mugs"?
OA. Coffee cools more quickly in a ceramic mug than in a Styrofoam
cup.
OB. Ceramic mugs are better for the environment than Styrofoam
cups.
OC. Ceramic mugs are more cost effective than Styrofoam cups
because they can be reused.
OD. Styrofoam cups tip over more easily than ceramic mugs.

Answer 1

Answer: A (Coffee cools more quickly in a ceramic mug than in a Styrofoam cup)

Step-by-step explanation:

Your hypothesis needs to be about what you are testing, which in this case is how well different materials keep heat.