SciencePaperD

SciencePaperD - ce s ti n ac tio Pr es u Q STUDENT’S...

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Unformatted text preview: ce s ti n ac tio Pr es u Q STUDENT’S NAME: DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED. Read the instructions on the ANSWER SHEET and fill in your NAME, SCHOOL and OTHER INFORMATION. Use a 2B or B pencil. Do NOT use a pen. Rub out any mistakes completely. You may use a calculator and a ruler. You MUST record your answers on the ANSWER SHEET. Use the information provided to choose the BEST answer from the four possible options. Fill in the oval that matches your answers on the ANSWER SHEET. PLEASE SEE BACK COVER FOR A LIST OF THE YEAR LEVELS THAT SHOULD SIT THIS PAPER Your score will be the number of correct answers. ����� ������������Debbie Bach ����������� ����������� ������������Fahrul Asmady bin Abas ����������� ����������� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ������������ ������������ ����������������������� ���� ������ ������������� ��� ����� ���� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����� ���������� � � � � � � � � � � � � � � � � ��������������������������������������������������������������������� ������������������������������� ���������������������������� ������������� ��������������� �������������� �� �� � � � � � � � � � � � � ��������� *033506* � ��������������������������� �� ������������������������ �� �������������������������������� �� ������������������������������������������������� �� ��������������������������������������������������� ����������������������� ����������� �������������������������������������������������� � ������������������������������������������������ � � � � ���� ���� ���� ���� ������ ����� ����� ����� � ���������������������������������������������������������� �������� ������������������ � � � � ����� � � � � � � � � � � � � � � � ���������������������������������������������� ������������������������������������������������ ������������������������������������������� ����� � 1 To recycle waste, things must be sorted into groups according to what they are made of. Here is a drawing of some of the things found in a recycling bin. WATER COFFEE M I L K M I L K M I L K BEANS Soft Drink FISH magazines NUTS Below are different ways of sorting these things. Which method of sorting would group these items for recycling? (A) (B) (C) (D) large containers, small containers, flat containers, round containers plastic containers, glass containers, paper bundles, metal containers large containers, small containers, paper bundles, metal containers plastic containers, glass containers, flat bundles, round bundles 2 Some students set up an experiment to investigate the effect of the Sun’s heat on paper of various colours. The students made five cups using paper. All the paper was of the same type but with different colours. They left the five cups in a sunny place for a number of hours. 45 thermometer lid of coloured paper black 40 35 30 25 20 green red yellow white coloured paper 15 paper cup 10 0 1 2 3 4 Time (hours) After 2 hours the difference in the temperatures of the black cup and the white cup was (A) (B) (C) (D) 17 °C. 20 °C. 28 °C. 37 °C. 4 International Competitions and Assessments for Schools–Science Paper D Educational Assessment Australia, UNSW 3 The diagrams below show the relationship between the numbers of producers and consumers in two food chains. Producer Food chain one Primary Consumer Secondary Consumer KEY means "gets eaten by" seeds and grass rabbits cats rabbits cats Increasing numbers of individuals seeds and grass Food chain two trees caterpillars birds trees caterpillars birds Increasing numbers of individuals Which of the following statements is supported by the information above? In a food chain (A) (B) (C) (D) there are more primary consumers than there are secondary consumers. there are more primary consumers than there are producers. primary consumers are larger than secondary consumers. primary consumers are usually insects that eat plants. Secondary Primary Producer Consumer Consumer KEY means "gets eaten by" Food chain one seeds and grass rabbits cats rabbits cats Increasing numbers of individuals seeds and grass trees caterpillars birds trees caterpillars birds Increasing numbers of individuals International Competitions and Assessments for Schools–Science Paper D Educational Assessment Australia, UNSW 5 THE FOLLOWING YEAR LEVELS SHOULD SIT FOR THIS PAPER: AUSTRALIA : Year 6 BRUNEI : Primary 6 MALAYSIA: Standard 6 NEW ZEALAND : Year 7 PACIFIC : Year 6 SINGAPORE : Primary 5 SOUTH AFRICA : Grade 6 ����� � © EDUCATIONAL ASSESSMENT AUSTRALIA, THE UNIVERSITY OF NEW SOUTH WALES SYDNEY AUSTRALIA www.eaa.unsw.edu.au EAA is a division of NewSouth Global Pty Limited. ABN 62 086 418 582 Question solutions–Paper D Q1 the answer is (B). According to the introduction, “to recycle waste, things must be sorted into groups according to what they are made of”. Labels on the diagram show what the things are made of. Although the items shown could be sorted into different groups according to their characteristics, to get the correct answer, the option sorting them into what they are made of must be chosen: plastic containers, glass containers, paper bundles and metal containers. Q2 the answer is (A). To find the difference in temperatures of the black cup and the white cup after two hours, you must interpret the graph and calculate the difference. The graph curves represent the changing temperatures of the cups over time. The temperature of the cups at 2 hours is found by locating the intersection of the vertical line from (time) 2 hours on the x-axis and the curve representing the temperatures of the black and white cups. The temperatures are found by reading the y-axis values for these intersections. The black cup temperature is 37 °C. The temperature of the white cup is 20 °C. The difference in temperature between the cups is 37 – 20 = 17 °C. Q3 the answer is (A). In a food chain the producers are always plants. The graphs representing the two food chains show the number of individuals that are producers, primary consumers and secondary consumers. In food chain one, there are more producers than consumers. In food chain two the size of the individuals matters more than the numbers of individuals. Because the trees are large and the caterpillars are small, few trees feed many caterpillars. However in both food chains, there are more secondary consumers than primary consumers. Question difficulty level – Paper D Sample Question 1 2 3 Approximate percentage of students expected to answer this question correctly 71% 58% 44% ...
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This note was uploaded on 09/27/2010 for the course 6511 5487 taught by Professor Chaohue during the Spring '10 term at Mackenzie.

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