End-of-Year Practice Paper: Chapters 1–8 — question paper

Section A: Multiple-choice questions[20 marks]

Answer all questions. For each question, write the letter (A, B, C or D) of the correct answer in the brackets provided.

1. 1

   Which describes the luminous flame of a Bunsen burner?

   1. Aair hole open, blue, no soot
   2. Bair hole closed, yellow, sooty
   3. Cair hole open, yellow, roaring
   4. Dair hole closed, blue, very hot
   ( )
2. 2

   What is the SI unit of length?

   1. Acentimetre
   2. Bmillimetre
   3. Ckilometre
   4. Dmetre
   ( )
3. 3

   A student investigates how the mass of fertiliser affects the number of flowers on a plant. Which is a controlled variable?

   1. Athe mass of fertiliser
   2. Bthe number of flowers
   3. Cthe type of plant used
   4. Dthe time each flower lasts
   ( )
4. 4

   Water has a density of 1.0 g/cm³. Which object sinks in water?

   1. Aa wooden block, 0.7 g/cm³
   2. Ban ice cube, 0.92 g/cm³
   3. Ca plastic toy, 0.95 g/cm³
   4. Dan aluminium spoon, 2.7 g/cm³
   ( )
5. 5

   Which property of glass makes it suitable for windows?

   1. AIt is transparent.
   2. BIt conducts electricity.
   3. CIt is flexible.
   4. DIt is magnetic.
   ( )
6. 6

   Which substance is a compound?

   1. Aoxygen
   2. Biron
   3. Cwater
   4. Dair
   ( )
7. 7

   Which substance is a mixture?

   1. Acarbon dioxide
   2. Bsea water
   3. Ccopper
   4. Dsodium chloride
   ( )
8. 8

   Which property is typical of metals?

   1. Adull surface
   2. Bpoor conductor of heat
   3. Cgood conductor of electricity
   4. Dbreaks easily when hammered
   ( )
9. 9

   Which method is used to obtain pure water from sea water?

   1. Afiltration
   2. Bdistillation
   3. Cmagnetic attraction
   4. Dpaper chromatography
   ( )
10. 10

    Which method separates sand from a mixture of sand and water?

    1. Afiltration
    2. Bevaporation
    3. Cdistillation
    4. Dchromatography
    ( )
11. 11

    Paper chromatography of a black ink gives three separate spots. What does this show?

    1. AThe ink is a pure substance.
    2. BThe ink does not dissolve in the solvent.
    3. CThe ink contains exactly one dye.
    4. DThe ink contains at least three dyes.
    ( )
12. 12

    A ray of light strikes a plane mirror. The angle of incidence is 30°. What is the angle of reflection?

    1. A15°
    2. B30°
    3. C60°
    4. D90°
    ( )
13. 13

    A ray of light passes at an angle from air into glass. What happens to the ray?

    1. AIt bends towards the normal.
    2. BIt bends away from the normal.
    3. CIt does not change direction.
    4. DIt is all reflected.
    ( )
14. 14

    Which structure is found in plant cells but not in animal cells?

    1. Anucleus
    2. Bcell membrane
    3. Ccell wall
    4. Dcytoplasm
    ( )
15. 15

    What is the function of the nucleus?

    1. AIt controls the activities of the cell.
    2. BIt makes food by photosynthesis.
    3. CIt gives the cell a fixed shape.
    4. DIt stores water.
    ( )
16. 16

    Which shows the levels of organisation in order, from smallest to largest?

    1. Acell, organ, tissue, system
    2. Borgan, tissue, cell, system
    3. Ctissue, cell, organ, system
    4. Dcell, tissue, organ, system
    ( )
17. 17

    Which describes the particles in a gas?

    1. Aclosely packed in a regular pattern; vibrate about fixed positions
    2. Bclosely packed but able to slide past one another
    3. Cfar apart; move randomly at high speed
    4. Dfar apart; do not move
    ( )
18. 18

    The smell of perfume spreads across a room. Which process causes this?

    1. Acondensation
    2. Breflection
    3. Cmelting
    4. Ddiffusion
    ( )
19. 19

    What does one molecule of carbon dioxide contain?

    1. Aone carbon atom and one oxygen atom
    2. Bone carbon atom and two oxygen atoms
    3. Ctwo carbon atoms and one oxygen atom
    4. Dtwo carbon atoms and two oxygen atoms
    ( )
20. 20

    Which particle in an atom has a negative charge?

    1. Aproton
    2. Bneutron
    3. Celectron
    4. Dnucleus
    ( )

Section B: Structured questions[40 marks]

Answer all questions in the spaces provided. Show your working for calculations.

1. 1

   A student investigates how the temperature of water affects the time taken for 2 g of sugar to dissolve. Table 1.1 shows her results.

   Table 1.1

   Temperature of water / °C	20	30	40	50	60
   Time taken to dissolve / s	124	98	75	88	41

   1. (a)

      Identify the independent variable and the dependent variable.

      [2]
   2. (b)

      Which result is anomalous? Suggest what the student should do about it.

      [2]
   3. (c)

      Describe how the time taken changes as the temperature increases.

      [1]
   4. (d)

      State one variable that must be kept the same.

      [1]
2. 2

   An empty beaker has a mass of 52.0 g. A student pours 40.0 cm³ of cooking oil into it. The beaker and oil now have a mass of 88.8 g.

   1. (a)

      Calculate the mass of the oil.

      mass =g[1]
   2. (b)

      Calculate the density of the oil.

      density =g/cm³[2]
   3. (c)

      Oil and water do not mix. Water has a density of 1.0 g/cm³. State which liquid forms the top layer, and explain why.

      [2]
3. 3

   Iron, water and air are three common substances.

   1. (a)

      Classify each substance as an element, a compound or a mixture.

      [3]
   2. (b)

      State two differences between a compound and a mixture.

      [2]
4. 4

   A mixture contains salt, sand and iron filings.

   1. (a)

      Describe how you would obtain a dry sample of each substance from the mixture.

      [5]
   2. (b)

      Name the residue and the filtrate in your filtration step.

      [2]
5. 5

   This question is about the ray model of light.

   1. (a)

      State the law of reflection.

      [1]
   2. (b)

      A ray of light strikes a plane mirror at 35° to the surface of the mirror. Find the angle of incidence and the angle of reflection.

      [2]
   3. (c)

      A ray of light passes at an angle from air into water. Describe and explain what happens to the ray.

      [2]
   4. (d)

      Give one everyday example of refraction.

      [1]
6. 6

   This question is about plant and animal cells.

   1. (a)

      Name two structures found in both plant and animal cells.

      [2]
   2. (b)

      Name one structure found only in plant cells and state its function.

      [2]
   3. (c)

      Root hair cells are plant cells found underground. Suggest why they do not contain chloroplasts.

      [2]
7. 7

   This question is about particles, atoms and molecules.

   1. (a)

      Compare the arrangement of the particles in a solid and in a gas.

      [2]
   2. (b)

      Explain why a gas can be compressed easily but a solid cannot.

      [1]
   3. (c)

      A water molecule is made of two hydrogen atoms and one oxygen atom. Is water an element or a compound? Explain your answer.

      [2]