Which statement describes all chemical changes, but not all physical changes? Bubbles are produced. A new substance forms. Phase changes occur. A color change occurs.

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