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WorksheetsChange when heated and when mixed with other materials
Total questions: 20
Worksheet time: 11mins
Why will a plastic bottle of water look more full when frozen? Which of the following statements are true?
A) Water contracts (gets smaller) as it freezes.
B) Water expands (gets bigger) as it freezes.
C) Ice takes up more space than liquid water.
Only A and C are true.
Only B and C are true.
A, B, and C are true!
What happens to a liquid when it is heated?
A) It expands.
B) It changes into a solid.
C) It evaporates changing into a gas.
Which of these statements are true?
Only A and C are true.
Only B and C are true.
A, B, and C are true!
Why does the mercury level in a thermometer change?
A) Mercury expands when heated, so the level rises.
B) Mercury shrinks when cooled so the level goes down.
C) Mercury turns into a gas at zero degrees Celsius (0o C).
Which of the statements are true?
Only A is true.
Only C is true.
Both A and B are true.
What happens when ice is heated above zero degrees Celsius (0o C)?
A) It changes from solid to a liquid.
B) It contracts.
C) It loses heat.
Which of the statements are true?
Only A and B are true.
Only A and C are true.
Only B and C are true.
How can a mixture of solid particles with different sizes be separated?
evaporating
filtering
sieving
What happened here?
Choose the name of the change process you see in the picture.
Condense
Freeze
Boil
Evaporate
What happened here?
Choose the name of the change process you see in the picture.
Cook
Burn
Condense
Evaporate
What happened here?
Choose the name of the change process you see in the picture.
Melt
Burn
Cook
Freeze
What happened here?
Choose the name of the change process you see in the picture.
Evaporate
Condense
Freeze
Melt
Fill in the blank: You can use ______ to separate a sand and water solution and be left with both substances at the end.
heating
filter paper
a sieve
Which of the choices is an example reversible change?
True or False: A material like volcanic rocks melts because it absorbed so much heat.
True
False
True or False: The evaporation of water in plant is called sublimation.
False
True
A homogeneous mixture of solid and liquid is also called a solution.
True
False
Identify among the choices examples of homogeneous mixtures. (Check that apply)
sand and gravel
fruit salad
salt dissolved in water
flour mixed with detergent powder
Which among the choices is NOT an example of a heterogeneous mixture?
sand mixed with water
paper clips mixed with thumb tacks
fruit salad
powdered milk mixed with water
Fill in the blank: ________ is the change from solid to liquid
melting
freezing
boiling
In the water cycle, which comes after the formation of clouds or condensation?
evaporation
precipitation
percolation / collection
Fill in the blank: ________ is the change from gas to solid without passing the liquid state.
deposition
melting
sublimation
Which of the choices is an example of irreversible change? (Check that apply)
