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You need to revise more effectively.
Quality of written communication
question: Work on your spelling, grammar and
punctuation.
Attempt and answers all questions.
Show your workings of calculations
Show substitution into equations
Use scientific key words in
your answers.
Check how many marks a question is worth –
make sure you include enough science
knowledge
Read the command words
carefully: Describe, explain
etc.
Include correct units
For this test you will need:A penA pencilA rulerA rubberA calculatorTime allowed: 45 MINUTES
Maximum marks available: 45
PUPIL NAME:
SET:
TEACHER FEEDBACK:
Section Marks
Bio Q1
Q2
Chem Q1
Q2
Q3
Phy Q1
Q2
Total
Grade
P2S4 YEAR 10COMBINED SCIENCE ADDITIONAL TESTFOUNDATION TIER
Biology Section
Q1.Photosynthesis uses carbon dioxide to make glucose.
(a) (i) Complete the equation for photosynthesis.
carbon dioxide + .......................... glucose + ....................(2)
(ii) What type of energy does a plant use in photosynthesis?
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(iii) Which part of a plant cell absorbs the energy needed for photosynthesis?
...............................................................................................................(1)
(b) The graph shows the effect of the concentration of carbon dioxide on the rate of photosynthesis in tomato plants at 20 °C.
(i) What is the maximum rate of photosynthesis of the tomato plants shown in the graph?
.......................... arbitrary units(1)
(ii) At point X, carbon dioxide is not a limiting factor of photosynthesis.
Suggest one factor that is limiting the rate of photosynthesis at point X.
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(c) A farmer plans to grow tomatoes in a large greenhouse.
The concentration of carbon dioxide in the atmosphere is 0.04%.The farmer adds carbon dioxide to the greenhouse so that its concentration is 0.08%.
(i) Why does the farmer use 0.08% carbon dioxide?
Tick ( ) one box.
To increase the rate of growth of the tomato plants
To increase the rate of respiration of the tomato plants
To increase water uptake by the tomato plants
(1)
(ii) Why does the farmer not use a concentration of carbon dioxide higher than 0.08%?
Tick ( ) two boxes.
Because it would cost more money than using 0.08%
Because it would decrease the temperature of the greenhouse
Because it would not increase the rate of photosynthesis of thetomato plants any further
Because it would increase water loss from the tomato plants
(2)(Total 9 marks)
Q2. A class of students was set the task of estimating the number of dandelions on the school field.
To do this, they decided to use sampling squares called quadrats.Each quadrat had an area of 1 m2.
The diagram shows the dimensions of the school field.
(a) Describe how the students should decide where to place the quadrats to investigate the distribution of the dandelions.
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(2)
(b) Each student collected data by using 10 quadrats.
These are the results for one student, Mary.
Quadrat number Number of dandelions
1 3
2 3
3 6
4 2
5 1
6 2
7 0
8 3
9 2
10 0
Calculate the mean number of dandelions per quadrat counted by Mary.Show clearly how you work out your answer.
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Mean number of dandelions ............................(2)
(c) Another student, Sharon, calculated a mean of 2.8 dandelions per quadrat from her results.
Estimate the number of dandelions in the whole field by using:
• a mean of 2.8 dandelions per quadrat
• information from the diagram on the opposite page
• the equation below.
Show clearly how you work out your answer.
estimated number of dandelions on field = mean number of
dandelions per quadrat × number of quadrats that would fit into the field
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Estimated number of dandelions ...............................(2)
(Total 6 marks)
Chemistry Section
Q1. Hydrogen fluoride is used to make hydrofluoric acid.
(a) A company makes hydrogen fluoride by reacting solid calcium fluoride with sulfuric acid. The reaction takes place in a rotating kiln.
calcium fluoride + sulfuric acid → calcium sulfate + hydrogen fluoride
The company want this reaction to take place quickly.
(i) Rotating the kiln makes the reaction take place faster.
Suggest why.
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...............................................................................................................(1)
(ii) Draw a ring around the correct word in each box.
To make the reaction take place faster:
higher less
the temperature should be so that the particles have energy
lower more
powder small
the solid calcium fluoride should be to give a surface area
lumps big
dilute less
the sulfuric acid solution should be to give collisions
concentrated more
between the particles each second.(3)
(Total 4 marks)
Q2.
The diagram shows how magnesium and iodine atoms form magnesium iodide.
Only the outer electrons are shown.
The dots (●) and crosses (×) are used to represent electrons.
Use the diagram to help you to answer this question.
Describe, as fully as you can, what happens when magnesium reacts with iodine to make magnesium iodide.
To gain full marks you should use the words atom, electron and ion in your answer.
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(b) Calcium bromide is another ionic compound.
Use the ion table on the data sheet to work out the formula of this compound.
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(1)(Total 5 marks)
Q3. A student investigated some instant soup.
(a) Instant soup contains a food additive which has the formula:
NaH2PO4
Give the names of all the elements in this compound.
The periodic table on the Data Sheet may help you to answer this question.
.....................................................................................................................................
.....................................................................................................................................(1)
(b) The student investigated the reaction which takes place when soup powder is added to cold water.
The student thought that the reaction might be exothermic.
(i) What is meant by the term exothermic reaction?
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...........................................................................................................................(2)
(c)
A student heated some blue copper sulphate crystals. The crystals turned into white copper sulphate.
(i) The blue copper sulphate had to be heated to change it into white copper sulphate.
State whether the reaction was exothermic or endothermic. ....................................
Explain your answer.
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.....................................................................................................................................(1)
(d) The word equation for this reaction is shown below.
(i) What does the symbol tell you about this reaction?
..........................................................................................................................(1)
(ii) How could the student turn the white powder back to blue?
..........................................................................................................................(1)
(Total 6 marks)
Physics section
Q1.The diagram shows a climber part way up a cliff.
(a) Complete the sentence.
When the climber moves up the cliff, the climber
gains gravitational ............................................ energy.(1)
(b) The climber weighs 660 N.
(i) Calculate the work the climber must do against gravity, to climb to the top of the cliff.
Use the correct equation from the Physics Equations Sheet.
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Work done = .................................................. J(2)
(ii) It takes the climber 800 seconds to climb to the top of the cliff.During this time the energy transferred to the climber equals the work done by the
climber.
Calculate the power of the climber during the climb.
Use the correct equation from the Physics Equations Sheet.
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Power = .................................................. W(2)
(Total 5 marks)
Q2a) Figure 1 shows the forces acting on a model air-powered rocket just after it has been launched vertically upwards.
(i) How does the velocity of the rocket change as the rocket moves upwards?
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(ii) The velocity of the rocket is not the same as the speed of the rocket.
What is the difference between the velocity of an object and the speed of an object?
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(b) The speed of the rocket just after being launched is 12 m / s.The mass of the rocket is 0.05 kg.
(i) Calculate the kinetic energy of the rocket just after being launched.
Use the correct equation from the Physics Equations Sheet.
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Kinetic energy = ......................................... J(2)
(ii) As the rocket moves upwards, it gains gravitational potential energy.
State the maximum gravitational potential energy gained by the rocket.
Ignore the effect of air resistance.
Maximum gravitational potential energy = ......................................... J(1)
(iii) Calculate the maximum height the rocket will reach.
Ignore the effect of air resistance.
Gravitational field strength = 10 N / kg.
Use the correct equation from the Physics Equations Sheet.
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Maximum height = ......................................... m(2)
(iv) Figure 2 shows four velocity−time graphs.
Taking air resistance into account, which graph, A, B, C or D, shows how the velocity of the rocket changes as it falls from the maximum height it reached until it
just hits the ground?
Write the correct answer in the box.
(1)
(c) The rocket can be launched at different angles to the horizontal.The horizontal distance the rocket travels is called the range.
Figure 3 shows the paths taken by the rocket when launched at different angles.Air resistance has been ignored.
What pattern links the angle at which the rocket is launched and the range of the rocket?
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(Total 10 marks)
End of test
