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.
Which glow stick will be brighter once it is bent? Explain your answer.
The glow stick in the hot water will be brighter once it is bent. This is because chemical reactions typically occur faster at higher temperatures. When the glow stick is bent, it activates the chemical reaction inside the stick, causing it to glow.
When the glow stick is placed in hot water, the higher temperature increases the rate of the chemical reaction, resulting in a brighter and more intense glow. On the other hand, the cold water will slow down the chemical reaction, leading to a dimmer and less bright glow.
Therefore, the glow stick in the hot water will be brighter once it is bent due to the increased rate of the chemical reaction caused by the higher temperature.