Explain why a person in a swimming pool seems to weigh less. what force is responsible for this?

What is the polyatamic ion of thiosulfate

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.

Why is the melting of ice a physical change ?