2.What property is observed in both molecules of air and water?

a. volumne b. shape c. compressibility d. all of the above


3. Samples A and B take the shape of the container. These samples being observed are (blnk).

a. solid and fas b. liqui and gas c. liquid and solid d. both solids

4. Pointilism illustrates that matter is made up of every small particles.

a. alwys true b.sometimes true c. never true d.not enough information.

5. Particles of matter have empty soaces between them.

a. alwys true b. sometimes true c. never true d.bnot enough infomation

6. Heat and light are nonmatter because they (blnk).

a. occupy space butdo not have mass.
b. do not occupy space but have mass.
c. occupy space and have mass.
d. do not occupy space and do not have mass.

7. The characteristics that distinguishes a true solid from other phases of matter is tgar in a solid the particles are (blank)

a. vibrating and changing their position.
b vubrating without changing theur position.
c. Motionless but chnging their position.
d. Motionless without changing their position.

8. strong forces of attraction between particles can be inferred in which situation below?

a. formation of water vapor.
b. making ice cream.
c. melting of chocolate.
d dissolving sugar in water.


​