year 7 end of year assessment 2010

Islington Arts and Media School

Year 7 End of Year AssessmentName: _______________________ Science class/teacher: _______________ 60 minutesINSTRUCTIONS There are 5 sections to this test. The first 2 sections are compulsory (COOKS & FORENSICS). Then select 1 more section from the following units: Aliens, A&E and Electromancer.

Read each question carefully Answer the best of your ability thinking about scientific keywords Ensure you have enough time to answer the test questions

Marks Compulsory section: Additional section: Aliens: A&E /22 /27 /22 Total ________%Islington Arts and Media School

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Electromancer:

1

Cooks Test QuestionsAnswer all questions in this sectionLevel 3

1.

The drawing shows a bottle of lemonade. Label A points to the cap and label C to the bottle. Labels B and D point to inside the bottle. (a) Write by the labels A, B, C and D whether each points to a solid, liquid or gas.

A B C D

4 marks

(b)

(i) bottle.

Give a material which could be used to make the cap of this

..........................................................1 mark

(ii)

Give a different material which is used to make bottles. ..........................................................1 mark Maximum 6 marks


2

Level 4 2. Kala recorded temperatures using a datalogger and three temperature sensors, P, Q and R. The ends of the sensors were covered with gauze. P was kept dry. Q was dipped in water for 2 seconds and then taken out. R was dipped in ethanol for 2 seconds and then taken out.

sensor P: d ry g a u z e

sensor Q : g a u z e d ip p e d in w a te r

sensor R : g a u z e d ip p e d in e th a n o l


3

Every five minutes, the datalogger recorded the temperatures of the sensors. Time, in min 0 5 10 15 (a) temperature of sensor P, in C 20 20 20 20 temperature of sensor Q, in C 20 18 17 17 20 16 12 20 temperature of sensor R, in C

What was the temperature of the room at the beginning of Kalas experiment? ..................... C1 mark

(b)

Describe how the temperatures of sensor Q and sensor R changed. sensor Q ...................................................................................................... ..................................................................................................................... sensor R ...................................................................................................... .....................................................................................................................2 marks

(c)

The next day the gauze on sensor Q felt dry. What had happened to the water on the gauze? .....................................................................................................................1 mark Maximum 4 marks


4

Level 5 3. Luke investigated the heating of water. He predicted that the rise in temperature would depend on the volume of water. The diagram shows the apparatus he used.

s tir in g r o d

th e rm o m e te r

100 cm

3

beaker

w a te r

c a n d le

b lo c k

Luke recorded his results in a table as shown below. beaker A B C volume of water, in cm3 25 50 75 temperature at start, in C 18 18 18 temperature after 2 minutes, in C 30 24 22

(a)

Why did Luke need to know the temperature of the water at the beginning and at the end of the experiment? ..................................................................................................................... .....................................................................................................................1 mark

(b)

Did Lukes results support his prediction? Explain your answer. ..................................................................................................................... .....................................................................................................................1 mark


5

(c)

Luke stirred the water during the experiment. How did this make his results more reliable? ..................................................................................................................... .....................................................................................................................1 mark

(d)

Which of the following statements about the energy transferred to the beakers is correct? Tick the correct box. Much more energy went into beaker A because its temperature increased the most. The same amount of energy went into all three beakers. Beaker C received the most energy because there was more water to heat.1 mark

(e)

After a time, all three beakers cooled down to room temperature. What happened to the thermal energy in the beakers as they cooled down? ..................................................................................................................... .....................................................................................................................1 mark Maximum 5 marks


6

Level 6 4. Some pupils predicted that water will evaporate faster if the surrounding air temperature is higher. To investigate their prediction they placed some water in containers in two different rooms. (a) Give two factors they should keep the same to make their investigation fair. 1. ..................................................................................................................1 mark

2. ..................................................................................................................1 mark

(b)

They recorded the mass of the water and the container in room 1 and room 2 every day for 5 days. The table below shows their results. time (days) 0 1 2 3 4 5 mass of water and container (g) room 1 100 92 80 72 60 46 72 54 45 30 room 2 100 85

The data shown in their table is not good enough to test their prediction. Explain why. ..................................................................................................................... .....................................................................................................................1 mark


7

They plotted their data for room 2 and attempted to draw a line of best fit.

1 9

0 0

0

m a s s 8 o0 f w a t e r a n d c o n t a i n e r 7 0 ( g ) 6 5 4 3 0 0 0 0 0 1 2

(c)

5 3 4 6 7 t i m e ( d a y s ) Describe the mistake they made in drawing the line of best fit. ..................................................................................................................... .....................................................................................................................1 mark

(d)

Using the data in the table plot the points for room 1 on the graph above.1 mark

(e)

Draw a line of best fit of the points you have drawn.1 mark

(f)

In which room did the water evaporate more quickly? Tick one box. room 1 Use the data to explain your answer. ..................................................................................................................... .....................................................................................................................1 mark maximum 7 marks

room 2


8

Level 7 5. John used an electrical heater to heat a cup of water. He kept stirring the water. When the temperature reached 20C, he started his stopwatch and measured the temperature of the water every half minute.

He switched off the heater after 4 minutes, but continued to record the temperature. His results are shown in the table. One measurement is missing and another appears to be wrong.

Time (minutes) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5Islington Arts and Media School

Temperature (C) 20 26 31 36 41 46

57 56 58 59 59 9

(a)

Use the results in the table to draw a graph on the grid. Label the axes. Plot the points and draw a smooth curve of best fit.

(

)

(4 marks

)

(b)

From your curve, estimate the temperature of the water after three minutes. ............C1 mark maximum 5 marks


10

Forensics Test QuestionsAnswer all questions in this sectionLevel 3 6. Melting, boiling, freezing and condensing are the names of four changes of state. Draw lines to join each name to the correct change of state. n a m m e e g c h a n g e g a s t o o f l iq u s t a t e i d

l t in

b

o

i li n

g

l i q

u

id

t o

g

a

s

f r e

e

z in

g

s o

l i d

t o

li q

u

id

c o

n

d

e

n

s i n

g

li q

u

id

t o

s o

l id4 marks


11

Level 4 7. Emma and Philip wanted to see if changing the temperature of the water affected the time taken for a cold cure powder to dissolve in water.

Philip recorded their results.

(a)

(i) below.

Write the heading for the first column in the table

............................................ (C)

time to dissolve (s)

(ii)

Write their results correctly in the table above.3 marks

(b)

Give the names of two pieces of measuring equipment they would need. 1. .................................................................................................................1 mark

2. .................................................................................................................Islington Arts and Media School

12

1 mark

(c)

Why did they put the same amount of water in each beaker? ...................................................................................................................... ......................................................................................................................1 mark

(d)

Emma wrote, My investigation was good, as her conclusion. Philip said this was not a scientific conclusion. Explain why Emmas conclusion is not scientific. ...................................................................................................................... ......................................................................................................................1 mark

(e)

Look at their results above. Write a scientific conclusion for their investigation. ...................................................................................................................... ......................................................................................................................1 mark maximum 8 marks


13

Level 5 8. Susie used chromatography to identify the coloured substances in the ink from a felt-tip pen. She used: green ink blue ink purple ink ink from her felt-tip pen. She used water as the solvent.

r e

d

d

a

r k

b dl u a e r k

b

l u

e

y e

l lo

w

w

a

t e

r p i n k

p l in e w w h e e r e s p o t s r e p l a c e d g Look at the diagram above. (a) (i) r e e in k n o f b

a

l e b pl u a e l e i n k lu e k p u i n r p k

b

l u

e

l e

i n

i n k f r o f e l t - t i p

m p e

n

Which colours were present in the ink from the felt-tip pen?

...............................................................................................................1 mark


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(ii)

How many coloured substances were there in green ink? How can you tell? ............................................................................................................... ...............................................................................................................1 mark

(iii)

Susie placed the spots of ink on a line on the chromatography paper as shown in the diagram. To draw the line, Susie had to choose a felt-tip pen or a pencil. Which one should she use? ............................................................. Give the reason for your answer. ............................................................................................................... ...............................................................................................................1 mark

(b)

Susie used water as the solvent in this experiment. When she repeated the experiment with a different set of pens, it did not work. She then used ethanol instead of water. Suggest why the experiment worked with ethanol but not with water. ......................................................................................................................... .........................................................................................................................1 mark maximum 4 marks


15

Level 6 9. (a) A chemical called methane can be a gas, a liquid or a solid. In the diagram below, arrows P, Q, R and S represent changes of state. The boxes on the right show the arrangement of particles of methane in the three different physical states. Each circle represents a particle of methane. p h y s ic a l s ta te o f m e th a n e a r r a n g e m e n t o f p a r tic le s

gas

P

Q

liq u id

R

S

s o lid

(i)

Draw a line from each physical state of methane to the arrangement of particles in that physical state. Draw only three lines.1 mark

(ii)

Arrows P, Q, R and S represent changes of state. Which arrow represents: evaporation? ............................................................ melting? ...................................................................2 marks


16

(b)

Methane is the main compound in natural gas. The scale below shows the melting point and the boiling point of methane. b o ilin g p o in t 1 6 2 CC

m e lt in g p o in t 1 8 3 C

200

180

160

140

120

100

80

60

40

20

0

Methane has three physical states: solid, liquid and gas. (i) What is the physical state of methane at 170 C? .............................................................1 mark Maximum 4 marks


17

Level 7 10. A pupil used a sensor to record the change in pH of 10 cm3 of an acid solution when an alkali solution was added a little at a time. The concentrations of the alkali and acid solutions were fixed.

His results are shown in the table below. volume of alkali added (cm3) 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 pH of resulting mixture 5.0 5.0 5.0 5.5 6.0 7.0 8.0 8.5 9.0 9.0 9.0


18

(a)

Use his results to draw a graph on the grid below. Label the axes. Plot the points. Draw a smooth curve.

4 marks

(b)

Look at the graph. What would be the likely pH of the solution if the pupil added a further 2 cm3 of alkali solution? ...............1 mark maximum 5 marks

~


19

Optional test questions sectionsChoose one of the following sections below and answer all the questions in that one section

Aliens questions on pages: 21 - 28 A&E questions on pages: 29 - 35 Electromancer questions on pages: 36 - 43


20

Aliens Test QuestionsLevel 3 11. (a) The diagram shows Alan sitting on a ride at a theme park.

(i)

Which arrow shows Alans weight? Give the correct letter. ..................................1 mark

(ii)

Alan begins to move forwards. Which arrow shows the force which makes Alan move faster? Give the correct letter. ..................................1 mark


21

(b)

During the ride, Alan is upside down.

Draw an arrow on the diagram to show the direction of Alans weight while he is upside down.1 mark Maximum 3 marks

Level 4 12. The drawings in parts (a), (b) and (c) show two teams of pupils in a tug-of-war. There is a ribbon tied to the middle of the rope. (a) The sizes and directions of the forces of each team are shown.

team A The ribbon stays above point X on the ground. Give the reason for this.

team B

......................................................................................................................... .........................................................................................................................1 mark


22

(b)

The teams then pull with the forces shown below.

team A

team B

Draw an arrow on the rope to show the direction in which the ribbon will move.1 mark

(c)

Later, the ribbon was to the left of point X as shown below.

team A Why did the ribbon move towards the left?

team B

......................................................................................................................... .........................................................................................................................1 mark


23

(d)

Team A practises by pulling a rope tied to a tree.

The team pulls with a force of 1200 N but the tree does not move. What is the force of the tree on the rope? Tick the correct box. less than 1200 N more than 1200 N1 mark

zero

1200 N

(e)

The pupils do not slip because there is a force between their shoes and the ground. What is the name of this force? .............................................................1 mark maximum 5 marks


24

Level 5 13. The diagram shows four forces acting on a plane in flight.

(a) Which arrow represents air resistance? Give the letter. .............1 mark

(b)

(i) When the plane is flying at a constant height, which two forces must be balanced? Give the letters. ............. and .............1 mark

(ii)

When the plane is flying at a constant speed in the direction shown, which two forces must be balanced? Give the letters. ............. and .............1 mark

(c)

(i)

Just before take-off, the plane is speeding up along the ground.

Which statement is true? Tick the correct box. Force B is zero. Force B is greater than force D. Force D is equal to force B.


25

Force D is greater than force B.1 mark


26

(ii) Which statement is true about the plane just as it leaves the ground? Tick the correct box. Force C is zero. Force C is greater than force A. Force A is equal to force C. Force A is greater than force C.1 mark maximum 5 marks

Level 6 14. Russell investigated the relationship between mass and weight. He weighed five different masses using a force meter. His results are shown in the table. mass (g) 150 250 300 400 580 weight (N) 1.5 2.5 3.8 4.0 5.8


27

(a)

He plotted four of his results on a grid as shown below, (i) Plot the point for the 150 g mass on the graph.1 mark

(ii)

Draw a line of best fit. 7 . 0

6 . 0

5 . 0

w e ig ( N )

4 . 0 h t 3 . 0

2 . 0

1 . 0

0 0 1 0 0 2 0 0 3 0 0 m 4 0 a 0 s s 5 0 ( g 0 )1 mark

6

0 0

7

0

0

8

0 0

(b)

One of the points Russell plotted does not fit the pattern. Circle this point on the graph.1 mark

(c)

Use your graph to predict: (i) the mass of an object weighing 6.5 N; ............. g1 mark

(ii)

the weight of an object of mass 50 g. ............. N1 mark


28

(d)

Give one reason why it is more useful to present the results as a line graph rather than a table. ......................................................................................................................... .........................................................................................................................1 mark maximum 6 marks

Level 7 15. (a) Megan was doing time-trials on her bike around a 400 metre horizontal track. Compare the forward force on the bike with the backward force on the bike when Megan was travelling at a constant speed. ............................................................................................................. .............................................................................................................1 mark

(b)

Megan then crouched down over the handlebars to make herself more streamlined, as shown below. She continued to pedal with the same force as before.

Compare the forward and backward forces on Megan and her bike now. ..................................................................................................................... .....................................................................................................................1 mark

Explain your answer. ..................................................................................................................... .....................................................................................................................1 mark maximum 4 marks Islington Arts and Media School

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30

A&E Test QuestionsLevel 316. The diagrams below show a human ovum (egg) and a human sperm.

m e m b ra n e n u c le u s n u c le u s head m e m b ra n e ta il

h u m a n o v u m (e g g )

h u m a n s p e rmn o t to s c a le

(a)

What are eggs and sperm? Tick the correct box. animals cells organs1 mark

(b)

Which part does a sperm use to swim towards an egg? ......................................................1 mark

(c)

Give the name of the male reproductive organ where sperm are made. .......................................................1 mark

(d)

The diagram below shows a sperm joining with an egg.

n o t t o s c a le

What is this process called? Tick the correct box. fertilisation nutrition respiration1 mark Maximum 4 marks

growth


31

Level 4 17. Drawings A, B, C, D and E show the positions of five organ systems in the human body.

(a)

The names of the five organ systems are given in the table. By each name, write the letter of the drawing which shows the organ system.n a m e o f o rg a n s y s te m c ir c u la t o r y s y s te m d ig e s t iv e s y s t e m r e p r o d u c t iv e s y s te m r e s p ir a to r y s y s te m s k e le to n5 marks

le tte r o f th e d r a w in g o f th e o rg a n s y s te m

(b)

Which one of these organ systems is completely different in a man and a woman? ......................................................................................................................1 mark Maximum 6 marks


32

Level 5 18. The diagram shows a section through the female reproductive system.o v id u c t ( f a llo p ia n t u b e )

o v a ry

u te r u s

c e rv ix v a g in a

(a)

(i)

What happens at fertilisation?

............................................................................................................. .............................................................................................................1 mark

(ii)

In which labelled part of the female reproductive system does fertilisation normally take place? .............................................................................................................1 mark

(iii)

In which labelled part of the female reproductive system does the foetus develop? .............................................................................................................1 mark

(b)

Some women have blocked oviducts. How do blocked oviducts prevent fertilisation taking place? ..................................................................................................................... .....................................................................................................................1 mark


33

(c)

When a baby is born it is pushed out of the mother's body. Describe what happens in the wall of the uterus to push the baby out. ..................................................................................................................... .....................................................................................................................1 mark Maximum 5 marks

Level 6 19. The diagram below shows six cells.

(a)

(i)

Give the letters of the two plant cells in the diagrams.

............... and ...............1 mark

(ii)

Which one of these plant cells contains chloroplasts? Give the letter. ...............1 mark


34

(iii)

Give the function (job) of chloroplasts. ............................................................................................................. .............................................................................................................1 mark

(b)

(i) ...............

Give the letter of the ciliated cell.

1 mark

(ii)

In which part of the body are ciliated cells found? .............................................................................................................1 mark

(iii)

What is the function (job) of ciliated cells in this part of the body? ............................................................................................................. .............................................................................................................1 mark

(c)

Give the letter of the cell which transfers genetic information from father to offspring. ...............1 mark maximum 7 marks


35

Level 7 20. (a) The diagrams below represent what happens at fertilisation and after fertilisation has taken place.

s t a

g

e

1

s t a

g

e

2

s t a

g

e

3

not to scale

(i)

Some women find it difficult to become pregnant. Doctors have developed a technique in which an ovum is fertilised in a test-tube. An embryo is then implanted into the womans reproductive system. Which stage in part (b) shows an embryo and which stage shows a foetus? embryo ........................................................... foetus .............................................................1 mark

(ii)

Into which part of the womans reproductive system is the embryo implanted? .............................................................1 mark

(b)

(i) Explain why a child can look like both parents but is not identical to either of the parents. ............................................................................................................... ............................................................................................................... ............................................................................................................... ...............................................................................................................2 marks


36

(ii)

In the table below, tick one box by each human characteristic to show whether it is: inherited only inherited and affected by environmental conditions. human characteristic inherited and affected by environmental conditions

inherited only

eye colour skin colour weight1 mark maximum 7 marks


37

Electromancer Test QuestionsLevel 321. (a) The drawing below shows the parts of a torch. s w i t c h c o n t a c t b u lb s w it c h

+b a t t e r y

s w i t c h c o n t a c t

p (i)

l a

s t i c

c a

s

e

+

Paul closed the switch. Why did this turn on the torch? ............................................................................................................. .............................................................................................................1 mark

(ii)

The diagrams below show symbols for a battery, a bulb and a switch. Connect the symbols to make a series circuit for the torch.

b

u

l b

b

a

t t e

r y s w i t c h1 mark


38

(b)

The drawings below show two other torches. In both torches, the bulbs will not light even when Paul closes the switches.

t o r c h

A

+

+

+

t o r c h

B

+

Look carefully at the drawings. (i) Why is the circuit of torch A not complete? .............................................................................................................1 mark

(ii)

What could you do to torch B to get the bulb to light? .............................................................................................................1 mark

(c)

When Paul bought his torch there was a paper strip between the contacts of the switch as shown below.

+

p a

p

e r

s t r ip

+

Paul had to remove the paper strip before he could turn the torch on. Give the reason for this. ..................................................................................................................... .....................................................................................................................1 mark maximum 5 marks Islington Arts and Media School

39

Level 4 22. (a) Ahmed bought two sets of lights to put on a tree in his garden. Circuit diagrams for the two sets of lights are shown below.t o m a in s p l u g t o m a in s p l u g

c i r c u i t

A

c i r c u i t

B

Choose words from the list below to fill the gaps in the sentences. all (a) none some parallel series short

Circuit A is a ........................................ circuit. If one of the bulbs breaks in circuit A ........................................ of the other bulbs will go out.1 mark

(b)

Circuit B is a ........................................ circuit. If one of the bulbs breaks in circuit B ........................................ of the other bulbs will go out.1 mark maximum 2 marks


40

Level 5 23. A circuit is shown below.A open s w itc h D

C

b u lb X

B

b u lb Y

(a)

The switch is open. Steven connects point A to point B with a piece of copper wire. Which bulbs, if any, light up? ....................................................................................................................1 mark

(b)

Steven removes the copper wire and uses it to connect point C to point D. The switch is still open. Which bulbs, if any, light up? ....................................................................................................................1 mark

(c)

Steven removes the copper wire and closes the switch. Both bulbs light up, but not very brightly. He then uses the copper wire to connect point B to point C.c lo s e d s w it c h

w ir e C B

b u lb X

b u lb Y

Choose from the following words to answer the questions below. gets brighter (i) What happens to bulb X? stays the same goes out ..1 mark

(ii)

What happens to bulb Y?

..1 mark


41

(d) Steven removes the copper wire. The switch is still closed. Both bulbs light up, but not very brightly. He then uses the copper wire to connect point A to point B.

A c lo s e d s w it c h w ir e

b u lb X

B

b u lb Y

Choose from the following words to answer the questions below. gets brighter (i) stays the same gets dimmer goes out

What happens to bulb X?

1 mark

(ii)

What happens to bulb Y?

1 mark

Maximum 6 marks


42

Level 6 24. Alex makes an electromagnet. She winds insulated wire around an iron nail. She connects the wire to a power supply. She uses the electromagnet to pick up some steel paper-clips.

This is her prediction. The more turns of wire around the iron nail the stronger the electromagnet becomes. (a) (i) Give the one factor she should change as she investigates her prediction. ............................................................................................................. .............................................................................................................1 mark

(ii)

Give one factor she should keep the same. ............................................................................................................. .............................................................................................................1 mark


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(iii)

Describe how she could use the paper-clips to measure the strength of the electromagnet. ............................................................................................................. .............................................................................................................1 mark

(b)

Alex wrote a report of her investigation.

What would an odd result suggest? ...................................................................................................................... ......................................................................................................................1 mark

(c)

(i) Which size paper-clips would Alex use to make her results more accurate? Tick the correct box.

1 mark

(ii)

Give a reason for your choice. ............................................................................................................. ............................................................................................................. .............................................................................................................1 mark maximum 6 marks


44

Level 7 25. The diagram shows a rectangular coil and circuit. It has two iron rods in it. The rods are parallel and touching. They are free to move.

(a)

When the switch is closed, the two rods move apart. Explain why this happens. ............................................................................................................. ............................................................................................................. ............................................................................................................. .............................................................................................................2 marks

(b)

The switch is then opened to break the circuit. What, if anything, happens to the two iron rods? ............................................................................................................. .............................................................................................................1 mark Maximum 3 marks


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year 7 end of year assessment 2010

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