Introduces the basic forms of matter: solid, liquid and gas and how matter can change from one form to another. The terms melting point, freezing point and boiling point are clearly explained. Includes a hands-on activity that demonstrates how different liquids evaporate at different rates.
year: 2000
call number/section: 530.4
subjects: matter, constitution, juvenile films, solids, liquids, gases, video recordings for the hearing impaired