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WorksheetsMATTER/CHANGES
Total questions: 25
Worksheet time: 10mins
CHEMICAL CHANGE IS (chose 2)
PERMANENT
IRREVERSIBLE
TEMPORARY
REVERSABLE
What are physical changes?
I don't know
a change where no new substance are formed
a change where a new substance has formed
A new formation of gas
Melting of a choclate is a reversible change
true
false
Growth of animals and plants
chemcial change
physical change
I don't know
Reversible change
Chemical changes are always irreversible
true
false
When heat is given to a solid, it ______________.
freezes
evaporates
melts
condenses
Helium and air are examples of liquidis
True
False
Is a burning candle a physical or chemical change?
Physical
Chemical
BOTH
Setting of curd from milk is __________________ change
slow, chemical and irreversible
fast, physical and reversible
slow, physical and reversible
slow, physical and reversible
Every change has a cause. true or false
True
False
The burning of wood
Can be reversed
Cannot be reversed
Can be expanded
Can be melted
Cooking of rice is a physical change
True
False
Flood is adesirable change
true
false
Grinding of wheat is a --- change
reversible
chemical
irreversible
change of cow dung to manure is a --- change
physical desirable
physical undesirable
chemical undesirable
chemical desirable
high tides and low tides are -- change
non periodic
periodic
artificial
which of these is not a physical change
heating of iron
breaking of glass
cooking of vegetables
tearing of paper
chemical change is always
irreversible
reversible
