1The diagram above shows a light ray approaching a mirror' Which of the diagrams below shows how the

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1 The diagram above shows a light ray
approaching a mirror. Which of the diagrams
below shows how the light travels after striking
the mirror? A B C
D
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2 All the following are examples of light
being refracted EXCEPT A C B D
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3 Light traveling through a pair of
eyeglasses is F refracted G
transmitted H absorbed J reflected
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4 Which circuit will cause the lightbulb to
glow? A C B D
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5 Which of these is made to change
electrical energy to heat energy? A C
B D
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6 The wires connecting the battery
and the lightbulb create a closed circuit. What
would happen if one of these wires were cut? F
The battery would lose its charge. G The
glass would crack. H The light would go
out. J The wire would become hot.
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7 Sound is made when a drumstick hits
the drum. This happens because the force of the
drumstick on the drum causes F
vibrations G electrical currents H heat
energy J a magnetic charge
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8 Blowing through a pipe can produce a
sound because the F air in the pipe
vibrates G pipe speeds up the air H pipe
cools the air J air is absorbed by the pipe
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9 Which of these is a good conductor of
electricity? F Glass G Metal H
Rubber J Plastic
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10 Which of the following can be attracted
to a magnet? F Gold ring G Glass
marble H Iron needle J Wool sock
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11 Matter can undergo changes. When water
boils, a F liquid becomes a solid G
solid becomes a liquid H liquid becomes a
gas J gas becomes a solid
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12 In an experiment salt and sand are mixed
together. Which of these procedures could be
used to most easily separate the salt from the
sand? A C B D
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13 Carbon powder and iron filings are both
black powders. When mixed together, they look
like one black powder. Which of these would be
best to use to separate the iron filings from the
carbon powder? F A magnifying glass G
Heat H A magnet J Water
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14 A student places a sugar cube in a
beaker of water. What change will occur? A
The sugar cube will not change. B More water
will be formed. C The sugar cube will become
smaller. D The water will form crystals
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15 In an activity, 20 grams of salt
are dissolved in 70 grams of pure water. The
water is then heated on a hot plate. When the
water evaporates completely, how much salt will
be left? A 0 grams B 18 grams C 20
grams D 22 grams
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16 Crystals were grown on a string
in a clean glass jar containing sugar dissolved
in hot water. The crystals grew on the string for
several weeks. What kind of crystals are
they? F String G Water H Glass J
Sugar
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17 Which of the following thermometers
shows the boiling point of water in a
pan? F G H J
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18 When a chocolate bar is heated by the
sun, all of the following are likely to be seen
EXCEPT F boiling G a liquid H
melting J a change in shape
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Students placed two identical toy cars on
these wooden ramps. The students let the cars
roll down the ramps. 19 What causes these
cars to move down the ramps? A
Electricity B A force that pulls C
Magnets D A force that lifts
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20 Which object requires the most
force to move a distance of 1 meter? A Bird
feather B Rubber ball C Block of
cement D Block of wood
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21 A car will skid more on a wet road than
on a dry road. This happens because between the
tires and the dry road, there is more A
gravity B magnetism C friction D heat
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22 The picture shows different points
along a toy rockets path after it blasted
off. How much height did the rocket gain
between Points Q and R?
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23 Which force is most responsible for
raindrops falling to Earth? F Friction G
Wind H Thrust J Gravity
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24 If the person in the middle
lets go of the rope, in which direction would
objects X and Y go? A X up, Y up B X up,
Y down C X down, Y down D X down, Y up
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Grade 5 Objective 3 Answer Key
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