Scientists digging in a cave found an unknown substance. The scientists found that the substance’s molecules were moving around each other. The scientists increased the speed of the substance’s molecules and caused a phase change. How did the scientists do this, and how did this affect the substance?

The scientists transferred energy . . .

a
into the substance, and the substance changed into a gas.

b
into the substance, and the substance changed into a liquid.

c
out of the substance, and the substance changed into a solid.

d
out of the substance, and the substance changed into a liquid.

format change of dna.  

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.