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Practice - Materials and Their Properties - 03
Hey science whizzes! Are you ready to put your knowledge of states of matter and the transformation processes to the test? We've got a cool quiz assembled just for you. It's packed with questions that will see how much you know about reversible and irreversible changes in scientific processes. But remember, this isn't just about getting the right answers. Most importantly, it's about learning and having fun whilst you do it. So let's see if you can rise to the challenge. Good luck!
1 .
Which is an example of a physical change?
Burning a candle
Baking a cake
Dissolving sugar in water
Rusting of iron
Dissolving sugar in water is a physical change as it does not produce new substances.
2 .
What does boiling an egg cause?
A reversible change
An irreversible change
No change
A desirable change
Boiling an egg causes an irreversible change, because you cannot change the boiled egg back to its original state.
3 .
Melting is a transition from what state to what state?
Solid to Gas
Solid to Liquid
Liquid to Solid
Gas to Liquid
Melting is a transition from solid to liquid, like when ice cream melts in your hand.
4 .
Cooking food results in what type of change?
No change
An irreversible change
A reversible change
A useless change
Cooking is an example of an irreversible change, because you can't change cooked food back into its raw state.
5 .
What state of matter is a rock in?
Liquid
Solid
Gas
Plasma
A rock is in solid state as it has a fixed shape and size.
6 .
Burning paper results in what type of change?
Reversible
Irreversible
Physical change
No change
Burning paper results in an irreversible change, as we cannot get the original paper back.
7 .
What does water become when it evaporates?
Ice
Steam
A rock
Snow
Water turns into steam when it evaporates. This is a reversible change.
8 .
Water vapour turning into dew is an example of which process?
Melting
Freezing
Condensation
Sublimation
The process of water vapour turning into dew is called condensation.
9 .
Sublimation is a process where a substance changes from:
Solid to Liquid
Liquid to Solid
Solid to Gas
Gas to Liquid
Sublimation is a process where a substance changes from solid directly to gas without becoming a liquid first, like when dry ice evaporates.
10 .
Freezing is a transition from what state to what state?
Solid to Liquid
Liquid to Solid
Solid to Gas
Gas to Liquid
Freezing is a transition from liquid to solid, for example, when water freezes to become ice.
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