Exit Ticket
Exit Ticket
Physical and Chemical Changes
Physical and Chemical Changes
1. Which of the following is a physical change?
E. iron rusting under water
F. copper turning green in the air
G. solid iodine subliming into a gas
H. hydrogen and oxygen producing water
1. Which of the following is a physical change?
A. iron rusting under water
B. copper turning green in the air
C. solid iodine subliming into a gas
D. hydrogen and oxygen producing water
2. Red paint mixed with blue paint becomes purple. What is
the most likely cause of this color change?
E. A chemical reaction
F. A change in the state of matter
G. A physical change
H. The formation of a new chemical substance
2. Red paint mixed with blue paint becomes purple. What is
the most likely cause of this color change?
A. A chemical reaction
B. A change in the state of matter
C. A physical change
D. The formation of a new chemical substance
Identify the following as chemical or physical changes:
Identify the following as chemical or physical changes:
3. Butter melting
3. Butter melting
4. A hot glass cracking when placed in cold water
4. A hot glass cracking when placed in cold water
5. Mixing sugar in water
5. Mixing sugar in water
6. Food molding (rotting)
6. Food molding (rotting)
7. Moth balls gradually vaporize in a closet
7. Moth balls gradually vaporize in a closet
Read the following paragraph to answer questions 8 and
9:
A match is lit and held under a cold piece of metal. The
following observations are made: a) The match burns. b)
The metal gets warmer. c) Water condenses on the metal. d)
Soot (carbon) is deposited on the metal.
Read the following paragraph to answer questions 8 and
9:
A match is lit and held under a cold piece of metal. The
following observations are made: a) The match burns. b)
The metal gets warmer. c) Water condenses on the metal. d)
Soot (carbon) is deposited on the metal.
8. What is one physical change from the above paragraph?
Why is it a physical change?
8. What is one physical change from the above paragraph?
Why is it a physical change?
9. What is one chemical change from the above paragraph?
Why is it a chemical change?
9. What is one chemical change from the above paragraph?
Why is it a chemical change?