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8 Science - Physical and Chemical Change Flashcards | StudBud
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8 Science - Physical and Chemical Change
8 Science - Physical and Chemical Change
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A short quiz to test knowledge relating to physical and chemical changes.
Flashcards
13 cards
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Questions
13
Answers
1
Which is
not
a piece of evidence to confirm that a chemical change has occurred?
a temporary colour change.
a decrease in temperature.
an increase in temperature.
a gas formed.
2
Melting butter in a saucepan is an example of a:
chemical change
physical change
3
Lead nitrate and potassium iodide are mixed, forming a yellow solid. The solid is known as a:
precipitate
powder
perfume
particle
4
Breaking a glass is an example of a:
chemical change
physical chage
5
Burning your toast is an example of a
physical change
chemical change
6
Dissolving sugar in water is an example of a:
physical change
chemical change
7
A colour change
may be
and indication of chemical change. Which is
not
a chemical change?
mixing paint.
leaves turning brown in the autumn.
sugar caramelising.
dyeing hair.
8
A hydrogen balloon does the following when ignited. Which is
not
evidence of chemical change?
A plume of flames.
A pungent odour.
The balloon bursting.
9
The first step in recycling aluminium cans is crushing them. This is a:
chemical
physcial
10
Boiling water in the kettle is an example of a:
physical change
chemical change
11
rust forming on a car door is an example of a:
chemical change
physical change
12
Which of the following is a chemical change?
Dry ice sublimes to form gaseous carbon dioxide.
Fireworks explode in a colourful light display.
Water freezes to form ice.
Sawdust is produced from wood being cut by a power saw.
13
When purple iodine crystals are heated, they turn into a purple coloured gas. this is a:
chemical change
physical change
