A measurement is given to you with the SI unit of Kelvin. What is this a measure of?

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.

Match each scenario to the form of energy it represents

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature