13+ Maths Non-Calculator Total Marks: /22 Date: Kerry ...€¦ · Worksheet No. 151201 ... 2. The iron produced from iron ore in a blast furnace is called cast iron. Cast iron is

Worked solutions available from LondonScienceTutors.com/CommonEntrance Worksheet No. 151201

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13+ Maths Non-Calculator

Total Marks: /22 Date: 1. Kerry has 325 beads. Sharon has 165 beads.

Kerry gives Sharon some beads. They now have the same number of beads. How many beads does Kerry give Sharon?

Answer: (3) 2. (a) The numbers in this sequence decrease by the same amount each

time. 74, …… , 58, 50 , 42 …… What are the two missing numbers?

Answer: (2) (b) The numbers in this different sequence decrease by the same amount

each time. 26 …… ,…… ,…… 6 What are the three missing numbers?

Answer: (2)

3. (a) Solve 3a + 7 = 12 Give your answer as a mixed fraction.

Answer: (2) (b)

Solve

x

5 6

Answer: (1)

(c) Solve 5c + 4 = 19

Answer: (2) (d) Factorise fully 4t – 20

Answer: (1)

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4. Two teachers and 18 students go to the theatre. The cost of a student’s ticket is half of the cost of a teacher’s ticket. The total cost of the tickets is £132. Work out the cost of one student’s ticket.

Answer: (3)

5. What fraction is half way between

1

4and

1

8?

Give your answer as a fraction in its simplest form.

Answer:

(3)

6. Divide £600 in the ratio 9 : 6 : 5.

Answer:

(3)





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13+ Science Total Marks: /24 Date: Biology 1. The picture shows a basilisk lizard. Some of the adaptations of the lizard are labelled.

Basilisk lizards are often found resting on branches of trees that grow next to water. Basilisk lizards can run across the surface of the water.

(a) Draw one line from each adaptation of the lizard to the advantage of the adaptation.

(3)





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(b) Suggest one advantage to the basilisk lizard of being able to run across the surface of the water.

(1)

(c) Animals, such as lizards, compete with each other. Select two factors from the below list that animals compete for. oxygen food territory light

(2)





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Chemistry 2. The iron produced from iron ore in a blast furnace is called cast iron.

Cast iron is converted into steel in a furnace.

Iron ore contains iron oxide. Coke contains carbon.

(a) Quarrying iron ore will have an impact on everything near to the quarry.

(i) Describe one positive impact and one negative impact of quarrying iron ore.

(2)

(ii) Choose the most appropriate word to complete the sentence. Ores contain enough metal to make extraction of the metal ………….. carbon neutral economical reversible expensive

(1)

(b) Many chemical reactions take place in a blast furnace. Use the flow diagram above to help you to answer this question Suggest how the blast furnace is heated.

(1)

(c) A chemical reaction for the extraction of iron is: Fe2O3 + 3CO --- > 2Fe + 3CO2

(i) Complete the word equation for this chemical reaction. …………………. + carbon monoxide ------ > iron + ………………….

(2)

(ii) Choose the most appropriate word to complete the sentence. Iron is extracted from its ore by ………………………. decomposition oxidation reduction evaporation

(1)

(d) Cast iron contains about 4% carbon. Cast iron is converted into low-carbon steels

(i) Low-carbon steel is produced by blowing oxygen into molten cast iron. Suggest how oxygen removes most of the carbon.

(2)

(ii) Choose the most appropriate word to complete the sentence. Metals, such as nickel, are added to low-carbon steels to make the steel……. corrode easily easy to shape much harder softer

(1)





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(e) Recycling steel uses less energy than producing steel from iron ore. Tick one advantage and tick one disadvantage of recycling steel.

Statement Advantage Disadvantage Iron is the second most common metal in the Earth’s crust

Less carbon dioxide is produced

More iron ore needs to be mined

There are different types of steel which must be sorted

(2)





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Physics 3. The diagrams, X, Y and Z, show how the particles are arranged in the three states

of matter.

(a) (i) Which one of the diagrams shows the arrangement of particles in a liquid?

(1)

(ii) Which one of the diagrams, X, Y or Z, shows the arrangement of particles in a gas?

(1)

(b) (i) Choose the most appropriate ending to complete the sentence. In a gas, the particles are……….

1. vibrating in fixed positions 2. not moving 3. moving randomly 4. bonded together

(1)

(ii) Choose the most appropriate word to complete the sentence. In a solid, the forces between the particles are………… the forces between the particles in a liquid.

1. stronger than 2. changing 3. equal to 4. weaker than

(1)

(c) After a rain shower, there is a puddle of water in a road.

(i) During the day, the puddle of water dries up and disappears. This happens because the water particles move from the puddle into the air. What process causes water particles to move from the puddle into the air?

(1)

(ii) Describe one change in the weather which would cause the puddle of water to dry up faster.

(1)



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13+ Maths Non-Calculator Total Marks: /22 Date: Kerry ...€¦ · Worksheet No. 151201 ... 2. The iron produced from iron ore in a blast furnace is called cast iron. Cast iron is