Which of the following statements describes sound energy? Sound energy does not travel at all.
Sound energy needs a medium to travel through.
Sound energy can travel in empty space.
Sound energy can only travel through air.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which of the following is most likely true about water in chemical solutions?