WorksheetsChemical Changes 101
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
Bonds must be broken or formed for a chemical change.
a)
True
b)
False
2.
What are the signs that a chemical change has occured.
a)
Color change, evaporation, gas production, and precipitation
b)
Color change, precipitation, ph change, gas production, and temperature change.
c)
weight change, boiling, ph change, color change, and burning.
d)
Gas production, mass change, color change, dissolving, temperature change.
3.
Photosynthesis is a chemical reaction.
a)
True
b)
False
4.
Mixing hydrogen and oxygen is a physical reaction.
a)
True
b)
False
5.
Ripping a piece of paper is a chemical change.
a)
True
b)
False
6.
Burning hydrogen is a chemical change.
a)
False
b)
True
7.
Which is a sing a chemical change has occurred.
a)
Mass change
b)
Evaporation
c)
Temperature change
d)
Gravity change.
8.
When a chemical change occurs, the chemical properties of the substance change.
a)
True
b)
Sometimes true
c)
False
d)
Never
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