B3 C3 P3 REVISION QUIZ!

1. B3 C3 P3 REVISION QUIZ!

2. B3 Life on Earth • Which two of the following are required to define a group of organisms as a species? • The organisms can breed together • The organisms look the same as each other • The organisms can produce fertile offspring • The organisms live in the same place

3. B3 Life on Earth 2. Scientists use the similarities and differences between living things to put them into groups. What is the scientific term for ‘putting things into groups’?

4. B3 Life on Earth 3. Organisms have features that help them to survive in their environments. What is the scientific term for these features?

5. What would happen to the population of flat winkles? What would happen to the population of herring gulls? B3 Life on Earth 4. Organisms depend on each other in food webs. Imagine we have removed the crab. Use the words, increase, decrease or stay the same to answer these:

6. B3 Life on Earth 5. Give one reason why plants can only trap 1 to 3% of the light energy that reaches their leaves.

7. B3 Life on Earth 6. Fill in the missing energy values, A and B, in this energy transfer diagram. 1,000,000 kJ __B___ kJ __A__ kJ 10,000 kJ 200 kJ 600 kJ 150 kJ 9200 kJ Lost as waste, death, decay and heat from respiration

8. 7. Match the statement below to the correct letter in the diagram: Denitrifying bacteria Nitrogen-fixing bacteria Proteins in animals and plants B3 Life on Earth C B A

9. B3 Life on Earth 8. The carbon cycle is another important cycle that takes place in the environment. • Name one process that releases carbon dioxide to the atmosphere. • Name one process that removes carbon dioxide from the atmosphere.

10. B3 Life on Earth 9. Name two key pieces of evidence that scientists use in their quest to prove the theory of evolution.

11. Natural Selection B3 Life on Earth 10. What does natural selection involve? Fill in the missing scientific keywords below. There must be differences between organisms (V__________) There must be a change in the environment so that one organism is better at gaining resources than another (C_____________) These organisms have an increased chance of S_________ The surviving organisms have more offspring (R____________) Increases numbers in population

12. B3 Life on Earth 11. Lamarck and Darwin are two scientists who tried to explain the differences that we see in living things. Write one sentence to explain how each scientist thought the giraffe’s long necks evolved. Lamarck - ? Darwin - ?

13. B3 Life on Earth 12. Having a variety of animals and plants in an area means there is a high ________________?

14. B3 Life on Earth 13. Why should we maintain high biodiversity? [5 marks]

15. B3 Life on Earth 14. Which one of the following is a definition for the word sustainability? Meeting the needs of people today without damaging the Earth for people of the future Materials that are broken down in the environment by microorganisms The variety of living things, both within a species and between different species The removal of nitrogen from soil

16. C3 Chemicals in our Lives 1. Label this diagram of the Earth with the appropriate key words. A B C D

17. C3 Chemicals in our Lives 2. Fill in the gaps in this paragraph. The Earth’s outer layers are divided into a number of ____A_____ plates. Each plate contains dense oceanic crust, often carrying some lighter continental crust on top of it. The plates move because of very slow _____B_______ currents in the underlying solid mantle. Scientists have shown that it is possible to track the position of a country by studying ___C______ particles in the rocks.

18. C3 Chemicals in our Lives 3. Use the diagram and keywords below to explain how salt can be extracted using solution mining. [5 marks] Dissolve Solution Impurities Evaporation Crystallise Filtering

19. C3 Chemicals in our Lives 4. Give the products for the two equations below. ? Sodium hydroxide Hydrochloric acid ? + + ? Potassium hydroxide Sulfuric acid ? + +

20. C3 Chemicals in our Lives 5. Draw a particle diagram to show the following reaction: 4HCl + O2 2Cl2 + 2H2O + +

21. C3 Chemicals in our Lives 6. The following questions are about water treatment. Name one disease that can be transmitted through contaminated water. What chemical is now used to treat water to prevent water-borne disease? What does THM stand for? How do THMs form? Why are some people worried about the presence of THMs in water supplies?

22. C3 Chemicals in our Lives 7. Name two uses of each of the chemicals produced from salt below:

23. C3 Chemicals in our Lives 8. These questions are about a key chemical process: Name the process that uses an electrical current to split sodium chloride (in a brine solution) Name the four chemical elements in brine. Name the three chemical products of this process. Industry are trying to cut down on the use of fossil fuels to generate electricity for this process. What types of energy are they trying to use instead?

24. C3 Chemicals in our Lives 9. This question is about chemicals in the environment. What are POPs? Why are they a particular problem for people living in the Arctic?

25. C3 Chemicals in our Lives 10. This pipe is made from PVC. In the first stage of the process of making PVC, manufacturers need to make vinyl chloride. What two chemicals are required to make vinyl chloride? Vinyl chloride monomers are joined together to make a long chained poly vinyl chloride molecule in a process know as p_____________? PVC granules can then be moulded into different shapes using h______ and p_________. Why might a plasticiser be used with PVC?

26. P3 Sustainable Energy A 3kW immersion heater heats water for a bath over a period of 2 hours. The electricity used costs 11p per unit. Calculate the energy used by the immersion heater to heat the bath water. Calculate the cost of the energy used.

27. P3 Sustainable Energy 2. For all electrical items, their power is related to the current and the voltage of the electricity supply. In the UK, the mains voltage is 230 V. A hairdryer has a power rating of 700 W. Calculate the current. What is the mains power of an appliance that needs a current of 5 A to make it run?

28. P3 Sustainable Energy Sankey diagram for a filament bulb Sankey diagram for an energy-saving bulb 3. Calculate the efficiency of the two types of bulb above. Suggest why filament bulbs should no longer be sold.

29. P3 Sustainable Energy 4. Define the following terms: Primary energy source Secondary energy source

30. P3 Sustainable Energy 5. a) Describe how you could generate an electric current using the equipment below. [2 marks] b) What type of current will be produced using this method? [1 mark]

31. P3 Sustainable Energy 6. a) Use the words to label the numbered parts of this coal-fired power station. GENERATOR TURBINE FURNACE TRANSFORMER b) How would this power station be different if it was a nuclear power station?

32. P3 Sustainable Energy • 7. These questions are about nuclear power. • Why are nuclear fuels and nuclear wastes dangerous? • Name one way that dangerous nuclear wastes are stored. • With reference to radioactive material, what does it mean to be • contaminated • Irradiated • Give two advantages of using nuclear power instead of fossil fuels.

33. P3 Sustainable Energy 8. For the following renewable energy resources, list one advantage and one disadvantage.

34. P3 Sustainable Energy 9. The following questions are about the National Grid. What is the purpose of the National Grid? What is the voltage of the UK domestic power supply? Why is it more efficient to distribute electricity at much higher voltages (e.g. 200,000 V) on the National Grid? Name the piece of equipment that can alter the voltage of an a.c. electricity supply.

36. B3 C3 P3 REVISION QUIZ!ANSWERS

37. B3 Life on Earth • Which two of the following are required to define a group of organisms as a species? • The organisms can breed together • The organisms look the same as each other • The organisms can produce fertile offspring • The organisms live in the same place

38. B3 Life on Earth 2. Scientists use the similarities and differences between living things to put them into groups. What is the scientific term for ‘putting things into groups’? CLASSIFICATION

39. B3 Life on Earth 3. Organisms have features that help them to survive in their environments. What is the scientific term for these features? ADAPTATIONS

40. What would happen to the population of flat winkles? INCREASE What would happen to the population of herring gulls? DECREASE B3 Life on Earth 4. Organisms depend on each other in food webs. Imagine we have removed the crab. Use the words, increase, decrease or stay the same to answer these:

41. B3 Life on Earth 5. Give one reason why plants can only trap 1 to 3% of the light energy that reaches their leaves? Any one from: Some passes straight through leaf Some light cannot be used for photosynthesis Some reflected from leaf Some is transferred as waste heat Some light does not fall on plants/falls on buildings/soil/water instead

42. B3 Life on Earth 6. Fill in the missing energy values, A and B, in this energy transfer diagram. 1,000,000 kJ 50 kJ 800 kJ 10,000 kJ 200 kJ 600 kJ 150 kJ 9200 kJ Lost as waste, death, decay and heat from respiration

43. 7. Match the statement below to the correct letter in the diagram: Denitrifying bacteria C Nitrogen-fixing bacteria A Proteins in animals and plants B B3 Life on Earth C B A

44. B3 Life on Earth 8. The carbon cycle is another important cycle that takes place in the environment. • Name one process that releases carbon dioxide to the atmosphere. Respiration, combustion, decomposition, volcanic activity • Name one process that removes carbon dioxide from the atmosphere. Photosynthesis

45. B3 Life on Earth 9. Name two key pieces of evidence that scientists use in their quest to prove the theory of evolution. Fossils DNA

46. Natural Selection B3 Life on Earth 10. What does natural selection involve? Fill in the missing scientific keywords below. There must be differences between organisms (VARIATION) There must be a change in the environment so that one organism is better at gaining resources than another (COMPETITION) These organisms have an increased chance of SURVIVAL The surviving organisms have more offspring (REPRODUCTION) Increases numbers in population

47. B3 Life on Earth 11. Lamarck and Darwin are two scientists who tried to explain the differences that we see in living things. Write one sentence to explain how each scientist thought the giraffe’s long necks evolved. Lamarck – Through stretching their neck to reach high leaves on trees, their necks become longer and this feature is passed on to offspring. Darwin – Only those giraffes with long necks can reach leaves, eat and survive to pass on this feature to offspring.

48. B3 Life on Earth 12. Having a variety of animals and plants in an area means there is a high BIODIVERSITY?

49. B3 Life on Earth It is not FAIR on other organisms to put their species at risk We like to have nice areas for walking, hiking, sport, etc An ecosystem can cope more easily with natural disasters. 13. Why should we maintain high biodiversity? [5 marks] It looks nice! We depend on other species for: FOOD NATURAL FIBRES such as cotton and wool MEDICINES FUEL

50. B3 Life on Earth 14. Which one of the following is a definition for the word sustainability? Meeting the needs of people today without damaging the Earth for people of the future Materials that are broken down in the environment by microorganisms The variety of living things, both within a species and between different species The removal of nitrogen from soil