Does earths electromagnertic feild create lightnig

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

What is the relation between concentration of reactants and the rate of chemical reaction?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation