Objective: to preserve an insect for a science project

Which of the following solutions is more sound in terms of naive physics reasoning?

Pick from:
(I) Fill a small jar with rubbing alcohol. Find a dead insect. Identify and label your insect by putting a label on the jar. Carefully put insect in jar. Close and seal the jar and store in a safe location..
(II) Fill a small jar with hydrogen peroxide. Find a dead insect. Identify and label your insect by putting a label on the jar. Carefully put insect in jar. Close and seal the jar and store in a warm location..
(I)