Students study how the temperature of a substance is related to the rate of molecular movement. The molecules in which substances are moving the fastest? Is it cold milk, warm soup, water melting from ice or steam rising from booling wayer

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line