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Worksheets7.6C: Chemical and Physical Changes
Total questions: 56
Worksheet time: 52mins
What is a chemical change?
Forming a new substance
When two or more substances combine to make a greater one
When two or more substances combine to make a new chemical substance
Combing substances
Which of the following examples represents a physical change?
When sugar dissolves in water a ______________ change occurs.
Physical change
Chemical Change
A physical change is
a change where the characteristics do not change the substance
a change where the characteristics do change the substance
a change where the chemistry changes
Which of the following is NOT a clue that a chemical reaction has taken place?
Changing size
Changing color
A gas being formed
Formation of a precipitate
Which is a way that a piece of paper can go through a chemical change?
fold the paper in half
soak the paper in water
burn the paper with fire
cut the paper with scissors
Which of these is an example of a new substance being formed?
a nail rusting
a wall being painted
water changing to steam
paper being folded
Which example best describes a physical change?
iron rusting
charcoal burning
an ice cube melting
a marshmallow burning
Glass bottle that is shattered
Chemical Change
Physical Change
A pellet of sodium is sliced in two
Chemical change
Physical Change
Sugar dissolves in water
Chemical Change
Physical Change
What does the picture represent ?
physical change
chemical change
Boiling Water
Physical Change
Chemical Change
Nail Rusting
Physical Change
Chemical Change
Making slime is
a physical change
a chemical change
Frying an egg indicates........
Chemical change
Physical change
Water evaporating is a
Chemical change
Physical change
A rusting nail is a
Chemical change
Physical change
Color change is unexpected mean that it is a
Chemical change
Physical change
Is this a physical or chemical change?
physical change
chemical change
Is this a physical or chemical change?
physical change
chemical change
Select the 1 evidence that supports this chemical reaction.
Precipitate
Odor
Light production
Color change
Gas production
Select the evidences below that show a chemical and physical change has happened.
Color Chnage (unexpected)
Gas (Bubbbles / smoke)
Light Production
Temperature (increase or decrease)
Precipitate (solid formed)
Odor (smell)
Change in shape
Change in Size
Predictable color change
Change in state of matter (solid -> liquid -> gas
Breaking chalk is a (a) change.
Rusting iron is a (b) change.
Subliming dry ice is a (c) change.
Indicate whether the photo depicts a physical change or chemical change.
Physical change
Chemical change
Which one shows that a chemical reaction has occurred?
dissolving
melting
formation of a gas
bending
Baking cookies in an oven
Chemical change
Physical change
This is a __________ change.
Physical
Metaphysical
Chemical
Logical
This is a _____________ change.
Chemical
Physical
When two liquids are mixed and a solid is formed, the new solid is called a ________________.
Levitate
Precipitate
Palpitate
Bad date
Burning Sugar is an example of a ________________ change.
Physical Change
Chemical Change
Cracking an egg is a ________________ change.
Physical Change
Chemical Change
Changes between states of matter are often which?
liquid
Which of the following describes a precipitate?
a new liquid forms when a solid reactant is heated and melts
a new solid product formed from two aqueous reactants
a new gas forms when a solid is dissolved in a liquid
bubbles form when two aqueous reactants are mixed
a new solid forms when an aqueous reactant freezes
