In which stage of the scientific method are graphs usually created?

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

List four observations that indicate that a chemical reaction may be taking place

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?