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Science
REVISION PACK
2016-2017
END OF TERM 2
Name:
Grade:7
Section:____
Date : __________
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END OF TERM 2 EXAM NOTIFICATION
Subject: Science
Grade: 7
Study List
Units/Chapters
Lesson/s No.
Page/s No.
Book and resources
Unit 8
Mixtures
8.1,8.2,8.3,8.4,8.5
CB p:92-106
Worksheet + handout
Unit 9
Material changes
9.1,9.2,9.3,9.4,9.5,
9.6,9.7,
CB p: 108-122
Workbook + Handout
Unit 12
Light
12.1,12.2,12.3,12.4
,12.5,12.6
CB p:148-160
Workbook + Handout
Unit 13
Magnetism
13.1,13.2,13.3,13.4
,13.5,13.6
CB p:162-174
Workbook + Handout
Revision Pack
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Section A
Choose the correct answer:
1.
2.
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3.
4.
5
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6.
7.
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8. Which test method and gas are correctly linked? Circle the correct answer.
A
B
C
D
Test method
Lime water
Lighted splint
Litmus paper
Litmus paper
Gas
Oxygen
Hydrogen
Oxygen
Carbon dioxide
Section B
Answer the following questions:
1) The diagram shows how to obtain pure water from sea water.
a) Circle the letter which represents the distillate
A
B
C
D
b) Circle the letter which represents the condenser
A
B
C
D
2) Name the compound formed when magnesium reacts with oxygen in the air.
………………………………………………………………………………………………………………………………
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3) The states of matter are solid, liquid and gas. The diagram below shows how
the molecules are arranged in these three states.
Evaporation
condensation
freezing
melting
Using the words given above to identify the change of state for
(i) A …………………………………………………………………………………………………………………..
(i) B …………………………………………………………………………………………………………………..
(iii) C ……………………………………………………………………………….………………………………..
4) The diagram below shows an experiment in which Hydrochloric reacts with
marble (calcium carbonate).
(a) Complete the words equation for this reaction.
Hydrochloric
acid
+
Calcium
carbonate
+
+
Water
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(b) How do you know a gas is evolved in this experiment?
………………………………………………………………………………………………………………………………
(c) Describe the test to identify the gas produced in this experiment.
…………………………………………………………………………………………………
5) (a)
The diagram below shows a ray of red light entering a glass block.
(i) Most of the light goes into the glass
block, but some does not.
What happens to the light which does not go
into the glass block?
.............................................................................................................
(ii) As the light goes into the glass block, it changes direction.
Circle the name of this effect. (1 mark)
reflection
diffraction
refraction
6) A student is constructing an electromagnet.
Circle the metal he should place inside the coil of
wire.
copper
iron
aluminium
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7) Circle the letter which describes the most improved electromagnet.
(a) Coil of wire around an iron nail.
(b) Highly coiled wire around a tin nail.
(c) Highly coiled wire around an iron nail connected to two batteries.
8)
Indicate under each
figure either it is water
or glass after
Comparing the angles
of refraction .
9) Label (N) North and (S) South for each of the given figures.
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10) (a) Indicate what kind of reaction will happen if the lid was lifted up from
time to time .Write down the word equation of the chemical reaction taking
place.
________________________________
___________________________________________________________
b) Complete the following word equations.
1.
Calcium carbonate +
______________ -------> ____________+
water + carbon dioxide.
2.
___________+_____________------->
copper chloride + water + carbon dioxide.
3. Magnesium + ____________ -------> Magnesium chloride + _________.
4. __________ + Sulfuric acid ------->zinc________ + Hydrogen gas.
(i)
State how we test for hydrogen.
_____________________________________________
(ii)
State how we test for carbon dioxide gas.
______________________________________________
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11)
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