KS2 - Ks2 Science - Changing Materials Solution - MCQGeeks.com

Q.1.

Burning will produce what sort of change?

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An irreversible change
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A reversible change
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Either a reversible or an irreversible change
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Neither a reversible or irreversible change

Q.2.

Heating will produce what sort of change?

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An irreversible change
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A reversible change
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Either a reversible or irreversible change
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Neither a reversible or irreversible change

Q.3.

What is an irreversible change?

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A material changes permanently into a new material
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A material changes its feel or appearance, but it is still the same material
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A material changes into a new material, but it can be changed back
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A material stops existing

Q.4.

Which of the following is a sign of an irreversible change taking place?

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A change in colour
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A sudden change in temperature
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Vigorous bubbling
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All of the above

Q.5.

Which of the following is an example of a reversible change?

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Evaporation but not condensation
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Condensation but not evaporation
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Combustion
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Evaporation and condensation

Q.6.

If you were burning a candle, which of the following would be a reversible change?

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The solid candle wax melts
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The liquid wax in the wick burns
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The flame produces smoke
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All of the above

Q.7.

Which of the following is an example of an irreversible change?

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A log of wood has been burned on the fire
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A fruit smoothie has been frozen to make lollies
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A mixture of flour, water and yeast has been baked into bread
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A bicycle left out in the rain begins to rust

Q.8.

Which of the following is an example of a reversible change?

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A puddle turns to ice on a very cold winter's day
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Sugar is dissolved in hot water
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An egg is fried in a hot pan
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A bar of chocolate has been left in the sunshine and has melted

Q.9.

Which of these mixtures is an irreversible change?

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PVA glue mixed with Borax
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Mixing salt and water
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Plaster of Paris mixed with water
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Bicarbonate of soda mixed with vinegar

Q.10.

What is a reversible change?

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A material changes permanently into a new material
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A material changes its feel or appearance, but it is still the same material
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A material changes into a new material, but it can be changed back
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A material stops existing