CAMBRIDGE PRIMARY SCIENCE 6 UNIT 2: MATERIALS: PROPERTIES AND CHANGES
Name ___________________________________ Date _____________
Revision worksheet
1) Choose words from the box to complete the sentences.
irreversible
physical
evidence
melting point
rate
products
reactants
property
reversible
boiling point
1) The temperature at which a solid becomes a liquid is called its
_______________.
2) A _______________ of a substance is something that makes it different
from other substances.
3) The temperature at which particles throughout a liquid become a gas is
called its ______________.
4) A change is _______________ if the substance can be changed back to
the way it was before.
5) A change is _______________ if the substance cannot be changed back
to the way it was before.
6) In a _______________ change, a substance does not change into a
different substance.
7) The _______________ of dissolving increases if we heat a solution.
Cambridge Primary Science 6 – Fiona Baxter & Liz Dilley © Cambridge University Press 2021
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CAMBRIDGE PRIMARY SCIENCE 6 UNIT 2: MATERIALS: PROPERTIES AND CHANGES
8) The substances that react together in a chemical reaction are called
_______________.
9) The new substances that form in a chemical reaction are called
_______________.
10) The way we know that a chemical reaction has happened is called
_______________.
2) Reversible changes
Class 6 conducted a fair test to find out how different temperatures affect
the rate at which sugar
dissolves in water. They drew a
graph of their results.
a) Name the solvent used.
_______________
b) Name the solute used.
_________________
Cambridge Primary Science 6 – Fiona Baxter & Liz Dilley © Cambridge University Press 2021
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CAMBRIDGE PRIMARY SCIENCE 6 UNIT 2: MATERIALS: PROPERTIES AND CHANGES
c) At which temperature did the sugar dissolve fastest?
__________________________________________________________
d) How long did it take the sugar to dissolve at 30 °C?
________________________________________________________
e) Predict how long it would take the sugar to dissolve at 20 °C.
__________________________________________________________
f) At which temperature did the sugar dissolve slowest?
_________________________________________________________
g)
Write a conclusion for the investigation.
____________________________________________________________
Cambridge Primary Science 6 – Fiona Baxter & Liz Dilley © Cambridge University Press 2021
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CAMBRIDGE PRIMARY SCIENCE 6 UNIT 2: MATERIALS: PROPERTIES AND CHANGES
3) Match the words 1–6 in Column A with their meanings A–F in Column B.
Write the correct letter next to each number in the list below the table.
A
1
B
Erosion
2 Crystalline
A
Very small pieces of rock.
B
Part of a rock made of different substances with
a crystal structure.
3
Sediments
C
The wearing down of weathered rocks.
4
Mineral
D
A rock that is made up of crystals.
1 _______________
2 _______________
3 _______________
4 _______________
4) What is the difference between:
a) Intrusive igneous rock and extrusive igneous rock.
____________________________________________________________
____________________________________________________________
Cambridge Primary Science 6 – Fiona Baxter & Liz Dilley © Cambridge University Press 2021
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CAMBRIDGE PRIMARY SCIENCE 6 UNIT 2: MATERIALS: PROPERTIES AND CHANGES
b) Magma and lava.
____________________________________________________________
____________________________________________________________
c) A mould fossil and a cast fossil.
____________________________________________________________
____________________________________________________________
Cambridge Primary Science 6 – Fiona Baxter & Liz Dilley © Cambridge University Press 2021
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