Name ______________________________________Date _________________________ Block # ________
Physical Properties & Changes
Part 1 – Matching
1. Physical property a. how easily a substance dissolves in another substance
2. Solubility b. an objects attraction to another object (magnetic, electric)
3. Density c. an observable characteristic without modifying the object.
4. Physical change d. a change in state (solid, liquid, gas) of an object
5. Polarity e. how tightly of loosely atoms are packed in a substance.
Part 2 – Ways matter physically changes
(http://chemistry.about.com/od/matter/a/10-Physical-Change-Examples.htm)
Physical changes involve states of matter and energy. A state of matter can be a solid, a liquid or a gas. No new
substance is created during a physical change, although the matter takes a different form. The size, shape, and
color of matter may change. Also, physical changes occur when substances are mixed, but don't chemically react.
One way to identify a physical change is that such a changes may be reversible, especially phase changes. For
example, if you freeze an ice cube (solid), you can melt it into water again (liquid). This is a list of 10 examples of
physical changes.
1. crushing a can 2. melting an ice cube 3. boiling water 4. mixing sand and water
5. breaking a glass 6. dissolving sugar and water 7. shredding paper 8. chopping wood
9. mixing red and green marbles 10. sublimating dry ice
1. List 5 actions to physically change matter: _______________________________________________
2. True or False: Physical changes
may
be reversible.
Circle:
True False
3. True or False: A new substance is created during a physical change.
Circle:
True False
4. Think of 1 example (other than ice cube to water and back) that can be classified as a physical change.
__________________________________________________________________________________
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Part 3 – Sentence completion
1. We tested the _________________ of sugar by observing if it could dissolve in water after 5 minutes.
2. Color, size, shape, smell and texture are all examples of ___________________________________.
3. Depending on an objects’ ________________________ that object will sink or float in water.
4. We witnessed _______________________ when the magnet attracted iron filings in our mixture lab.
5. An object undergoes a ____________________ when it is melted, burnt, mixed, crushed, boiled, etc.
