It stay the same
The mass of a glowstick remains the same when it lights up. The glowstick undergoes a chemical reaction that produces light, but the total mass of the components inside the glowstick does not change.
After boiling, the film on water evaporates and disappears.
no
If a glowstick leaks on you, the chemical inside may cause skin irritation or a rash. It's best to wash the affected area with soap and water immediately. If there are any signs of an allergic reaction or continued irritation, seek medical attention.
It melts
It simply Dies
The boiling water cools and the freezing water warms up until they are both at the same temperature.
adding salt raises the boiling point of water which can help speed cooking time.
you lower its boiling point.
vaporization
it cools it
Swallowing the liquid in a glowstick can cause irritation, discomfort, and an upset stomach. The chemical inside is typically not toxic, but it is recommended to seek medical advice if ingested.