Question

6. Cutting an object in half changes its:
A. Density
B. Melting point
C. Mass and volume
D. Identity
7. A substance with low mass but high volume will have:
A. High density
B. Low density
C. No density
D. Changing density
8. Melting point is the temperature at which a substance:
A. Changes from gas to liquid
B. Changes from solid to liquid
C. Increases density
D. Gains mass

Answer 1

6. C — Mass and volume (cutting halves both mass and volume; density, melting point, identity unchanged).
7. B — Low mass but high volume gives low density (density = mass/volume).
8. B — Melting point is the temperature where a solid changes to a liquid.