Cells
The tail is long and can beat
rapidly to move the whole cell
Which diagram shows a root hair cell?
Which diagram shows a cell that does not
have a nucleus?
Which diagram shows a cell that has many
chloroplasts which are used for
photosynthesis
You would find these
in a plant cells
Cell wall, chloroplast and
vacuole
What part of a cell is selectively permeable only lets some substances pass through it
Cell membrane
How is a sperm cell adapted for its function
(job)?
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Interdependence
Both animals and plants respire
but only plants photosynthesise
In a simple food web of:
cabbage
caterpillar blackbird
kestrel
slug
carnivorous ground beetle
What organism would be the producer
Cabbage
In a simple food web of:
cabbage
caterpillar blackbird
kestrel
slug
carnivorous ground beetle
Which are examples of consumers
Caterpillar, slug, blackbird &
Kestrel
In a simple food web of:
cabbage
caterpillar blackbird
kestrel
slug
carnivorous ground beetle
Which organisms are both predator and prey
Carnivorous ground beetle and
blackbird
Kyle says ‘A plant photosynthesises in the day
and respires at night.’ What is wrong with his
statement?
Plants respire all the time (all
organisms respire at all times)
A cow is both a herbivore and a … whereas
a lion is a carnivore, predator and a …
Consumer (for both spaces)
Kyle says ‘Animals respire but plants
photosynthesise.’ This statement is
misleading. How could you improve the
statement?
Source: National Strategies. www.nationalarchives.gov.uk
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Particles
Which diagram best represents
the particles in a liquid?
Which diagram best represents
the particles in solid gold?
Which diagram best represents the particles
in a gas such as oxygen?
Which diagram best represents
a solid compound
Which diagram best represents
a solid compound Which diagram best
represents air?
Which diagram best represents
a mixture of iron filings with copper pieces?
Source: National Strategies. www.nationalarchives.gov.uk
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Forces
Time
Jas throws a ball through the air. Which is
the correct drawing that shows the direction
of forces acting on the ball when it has just
left Jas’s hand?
Jas kicks a ball. Which is the correct drawing
that shows the direction of forces acting on
the ball the moment that the boot touches the
ball?
The ground
Two teams are having a tug of war. Both
teams pull with the same force. Are the
forces now balanced or unbalanced.
The ground
Balanced
George says that the weight and mass of an
object are the same thing. Is George right or
is he wrong?
Wrong. (Weight is the result of
the effect of gravity but mass is
a measure of how much
substance there is in the object.)
A sky diver opens her parachute and slows
down on her way to the ground. Georgina says
that when the parachute has opened the name
of the upward force slowing her down is…
Air Resistance
Speed is measured by dividing the distance
travelled by the … taken to travel
Source: National Strategies. www.nationalarchives.gov.uk
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Energy
Energy cannot be made, it can
only be transferred. The total
amount of energy is always the
same (it is said to be
‘conserved’).
Some people use corn oil as a fuel for their
cars. What energy transfers take place in a
moving car that uses corn oil?
Stored (chemical) energy in the
fuel
(kinetic) energy of the
moving car
energy in the
surroundings (mostly
transferred by heating)
Some people use corn oil as a fuel for their
cars. Where has the energy stored in the
maize come from?
The Sun
The Sun is the ultimate source of energy for
these fuels.
Coal, gas and oil
Which of the following are renewable energy
resources:
coal, wind, gas and oil?
Wind
To the surroundings
Source: National Strategies. www.nationalarchives.gov.uk
In this food chain
grass
sheep
human
energy is transferred in the direction of the
arrows but at each stage some energy is
transferred … …… ………
Randolph says that batteries make the energy
for his CD player. What is wrong with his
statement?
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Scientific enquiry
Des investigates how things warm up
Cup 2
Cup 1
Des did an investigation in his laboratory.
30
He put some ice in a plastic cup and the same
amount of ice in another plastic cup.
A
20
Cup 1
Cup 1 was not insulated but cup 2 had a thick
cloth around it which also covered the top.
10
Cup 2
0
5
10
15
20
Des measured the temperature every minute,
collected his results and then plotted the graph
left.
Time in minutes
Source: National Strategies. www.nationalarchives.gov.uk
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Scientific enquiry
The same size, type and
thickness of cup, put the cups in
a similar position on the bench,
stirring the contents of both cups
Why did the lines for both cups join and
become horizontal at ‘A’?
The water in the cups had
reached room temperature
What was happening in both cups in the first 5
minutes?
The ice was melting
Des correctly said that the temperature of the
water in cup 2 started to rise quickly after
about ………
8 minutes
Des said that the graph shows that his
prediction was correct. What do you think his
prediction was?
That the ice would take longer to
melt in the insulated cup
What does Des have to do to make sure his
prediction was correct?
He must repeat the experiment
Des says that he did a fair test by putting the
same amount of ice in each cup. What else
would he have to do to make the test fair?
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