A group of scientists want to determine if rainwater is pure water, with nothing dissolved in it. The scientists collect a sample of rainwater. They test the rainwater to find out if it contains any dissolved minerals. What are the scientists most likely to find?

How do scientists think that gravity affected the formation of our solar system?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Why is the melting of ice a physical change ?