Explain why an excited electron that changes more energy levels results in blue and violet fireworks, and why an excited electron that only changes few energy levels result in red and yellow fireworks

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.

Why did southern business leaders want to increase the number of slaves

Identify the electromagnets with poles that are reversed from the electromagnet shown above