In science class, Blaine’s teacher puts one glow stick in a cup of hot water and another glow stick in a cup of cold water. She asks the students to think about how the temperature of the water will affect the chemical reaction that occurs inside the glow stick once it is bent and starts to glow.

Answer 1

The temperature of the water can affect the chemical reaction inside the glow stick in a few ways:

1. Rate of Reaction: Generally, higher temperatures increase the rate of chemical reactions. This means that the glow stick in hot water might produce light more quickly or more intensely compared to the one in cold water.

2. Brightness: Higher temperatures can increase the brightness of the glow stick. When the reaction inside the glow stick is faster, more light is produced, resulting in a brighter glow. Therefore, the glow stick in hot water may appear brighter than the one in cold water.

3. Duration: Temperature can also affect the duration or duration of light production. Higher temperatures may cause the chemical reaction inside the glow stick to occur more rapidly, but it may exhaust the chemicals faster as well, causing the glow stick to stop glowing sooner than the one in cold water.

Overall, the glow stick in hot water may produce more intense light, but it may not last as long as the one in cold water due to the differences in chemical reactions caused by temperature.