States of Matter, Properties, and Changes
Unit Test Study Guide
1.Are these examples of Physical or Chemical Change?
a. burning paper.
b. baking cookies.
c. heating table sugar.
d. dissolving salt in water.
e.
f.
g.
h.
filtering.
burning wood.
boiling water.
crushing a can.
i.
j.
k.
l.
gas burning on a stove
rust forming on an iron fence
salt dissolving in a glass of water
using electricity to break down water into hydrogen and oxygen
2. In the laboratory, how is the volume of a liquid usually measured? Name the instrument.
3. Anything that has mass and takes up space is called ___________________.
4. How do liquid water, ice, and water vapor differ from each other?
5. Define Matter.
6. How are the particles arranged in a solid, liquid, gas? Explain and draw an example.
7. __________________ is the amount of matter contained in an object.
8. When an inflated balloon is exposed to cold air, what happens?
a. the temperature inside the balloon rises.
b. the pressure inside the balloon rises.
c. the volume of the balloon decreases.
d. the volume of the balloon increases.
9. What happens during sublimation?
10. The change from liquid to solid, or the reverse of melting, is called __________________
11. According to the phase change diagram, the freezing point of water is the same as its _____________.
12. How would you describe the process of vaporization?
13. An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the
stove. What sequence can you conclude has occurred?
a. melting, then boiling
b. freezing, then thawing
c. vaporization, then condensation
d. condensation, then vaporization
14. Stars and lightning are both examples of which state of matter?
15. The amount of space that a gas takes up is its _______________.
16. If Density = Mass/Volume, what is the density of a fishing sinker with a mass of 75g and a volume of 3cm3?
17. The tarnishing of metal is an example of a ____________________ change.
18. Dissolving a spoonful of sugar in tea or coffee is an example of a ____________ change.
19. Vapors coming off of dry ice at room temperature is an example of________________.
20. Be able to label the phase change diagram.
21. The standard unit of measure for mass in the metric system is _____________.
22. Be able to answer each choice below in complete sentences and in a minimum of 1 paragraph.
a. Is the melting of an ice cube considered a physical change or a chemical change? Explain your reasoning.
b. Compare solids, liquids, and gases in terms of shape and volume.
c. Suppose you buy some inflated party balloons that are at room temperature (about 20°C). What will happen to those
balloons if you take them outside on a cold day? Explain.
d. Explain what happens to the water molecules in an ice cube when it is removed from a freezer.
e. Think about the ice cream lab. When we made ice cream in class, was it a chemical or physical
change? Explain your reasoning.