Which of the following is a true statement? A. A water molecule in the gas phase is smaller than a water molecule in the solid phase.
B. A water molecule in the gas phase is lighter than a water molecule in the solid phase.
C. A water molecule in the gas phase is larger than a water molecule in the solid phase.
D. A water molecule in the gas phase is the same as a water molecule in the solid phase.

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.