Earth is about 150 million km from the sun. the radiation coming from the sun travels at 300,000 km/s. how long does it take for radiation from the sun to reach earth?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.