PMR Science Test (CCTS)[1]

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Copyright © 2010 All rights reserved. PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PMR Science Paper 2 (55/2)
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Transcript of PMR Science Test (CCTS)[1]

PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMI PPSMIPPSMIPPSMIPPSMIPPSMIPPSMICopyright 2010 All rights reserved.

PMR Science Paper 2(55/2)

2

Science test

Paper 2Please read this page, but do not open the booklet until your teacher tells you to start. Write your name and the name of your school in the spaces below. First name _______________________________________________ Last name _______________________________________________ School _______________________________________________

Remember The test is 1 hour long. You will need: pen, pencil, rubber, ruler, protractor and calculator. The test starts with easier questions. Try to answer all of the questions. The number of marks available for each question is 1 mark unless stated . If you are asked to plan an investigation, there will be space for you to write down your thoughts and ideas. Do not use any rough paper. Check your work carefully. Ask your teacher if you are not sure what to do.

Copyright 2010. All rights reserved.

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3 PAPER 2 1. Nadine mixed grass seeds with sand. She put the mixture into three mesh bags to make three model heads. She soaked two of the bags in water. (a) The drawings below show the model heads after one week.

For Examiners Use Untuk kegunaan pemeriksa

(i) Which two model heads did Nadine soak in water? Give the letters. ________ and ___________ How can you tell this from the drawings? _____________________________________________________________________ (ii) Nadine watered both of these models for two weeks. She watered one more often than the other. How would the model that was watered more often look different from the other one? _____________________________________________________________________ (b) Nadine put one of the watered models near a window.

Why did the grass grow towards the window? _____________________________________________________________________

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4 (c) (i) Grass plants have root hairs. Which diagram shows a root hair cell? Tick the correct box.

For Examiners Use Untuk kegunaan pemeriksa

2. What do the hazard warning symbols, A and B, on this tube of glue mean? Choose from the box below and write your answers on the lines.

(i) Why is it dangerous to breathe in the fumes from the glue? _____________________________________________________________________ 3. (a) Gary poured 50 cm3 of water into a measuring cylinder. He then put a steel ball into the measuring cylinder.

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5 (i) What is the new reading on the measuring cylinder? ___________ cm3 (ii) What is the volume of the steel ball? ___________ cm3 (b) The table below shows the mass and volume of four objects.

(i) Which object is the heaviest? _____________________________________________________________________ (ii) Which object takes up the most space? _____________________________________________________________________ (c) The frame of a bike is made of aluminium.

(i) Give one reason why aluminium is a suitable material for the frame. _____________________________________________________________________ (ii) A force between the tyres and the road stops the bike skidding. What is the name of this force? _____________________________________________________________________

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6 4. Rosie poured some lavender oil into an oil burner. She heated it with a candle.

Which diagram represents this change of state? Write the letter. _____________________________________________________________________ 5. Elephants keep cool by losing heat from their ears.

(i) Predict which elephant can lose more heat from its ears. _____________________________________________________________________ (ii) Give the reason for your answer. _____________________________________________________________________

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7 6. Why is copper used for wires in a circuit? Tick the correct box.

7. (a) Draw a line from each change of state to the correct name. Draw only four lines.

(b) Kate made some ice cubes from pure water. She used a sensor to measure the temperature of the ice.

What temperature will the sensor show when the ice is melting? _____________________________________________________________________ (c) In very cold weather a mixture of salt and sand is spread on roads. Why are salt and sand used? Tick the two correct boxes.

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8 8. (a) The diagram below shows a fish tank. The surface of the water acts like a mirror. The fish can see the snail reflected in the surface of the water.

Draw a ray of light which passes from the snail, and reflects from the surface, to show how the fish can see the snail. Use a ruler.Put arrows on the ray of light. (3 marks)

When a ray of light passes from water to air it changes direction. (i) Draw a ray of light from the snail to Andrew to show how Andrew can see the snail. Use a ruler. Put arrows on the ray of light. (2 marks) (ii) What is the name given to this change in the direction of a ray of light ? (1 marks) _____________________________________________________________________

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9 9. The diagram below shows a plant cell.

(a) In which part of a plant would you find this type of cell? _____________________________________________________________________ (b) (i) Give the function of the nucleus. _____________________________________________________________________ (ii) Give the function of the chloroplasts. _____________________________________________________________________ (iii) Give the function of the cell wall. _____________________________________________________________________ (c) Give the names of two labelled parts that are not present in animal cells. _____________________________________________________________________ (d) Tick one box in each row to show whether the statement is true for photosynthesis or for respiration.

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10 10. The drawings below show parts of three different organ systems. Draw a line from each organ system to its function.Draw only three lines.

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11 11. The drawings below show six ways of providing energy.

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12 (a) From the opposite page, give the names of two fossil fuels. 1. _______________________________ 2. _______________________________ (b) (i) What is the source of energy for a solar panel? _____________________________________________________________________ (ii) Why can the solar panel not work at night? _____________________________________________________________________ (c) What makes the blades of the turbine in drawing B go round? _____________________________________________________________________ (d) Renewable energy resources will not run out. From the opposite page, give one energy source that will not run out. _____________________________________________________________________ 12. Susan has a small fan to keep herself cool. When she switches it on, a motor turns the blades to blow air.

(a) The diagrams below show the symbols for a battery, a motor and a switch.

In the space below, draw a series circuit diagram for the fan using these symbols.

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13 (b) (i) Which part provides energy for the circuit? _____________________________________________________________________ (ii) Some of this energy is used to turn the blades. The rest of the energy is wasted. Complete the sentence below. Choose words from the list. chemical heat light When the blades are turning, energy is wasted as __________________ energy and __________________energy. sound

(c) Susan built a circuit using a battery, a motor and a switch. She closed the switch to turn the motor on. (i) Susan added a bulb to the circuit. The current in the circuit decreased. How did this affect the motor? _____________________________________________________________________ (ii) Susan removed the motor from the circuit. The current in the circuit increased. How did this affect the bulb? _____________________________________________________________________

END OF TEST

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