Vacation or Conservation (Of Mass): Crash Course Kids #23.1

Name: Vacation or Conservation (Of Mass): Crash Course Kids #23.1
Uploaded: 2026-04-21T14:09:32.123Z
Description: Students see that some changes can be reversed by cooling, heating, or waiting for water to leave.

Reversible Changes: Dissolve, Evaporate, and Change Back

Moment from 1:20 to 2:50.