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Science PRACTICE QUESTIONS PA PE R F Read the instructions on the ANSWER SHEET and fill in your NAME , SCHOOL and OTHER INFORMATION . Use a pencil. Do NOT use a coloured pencil or a pen. Rub out any mistakes completely. Yo u MUST record your answers on the ANSWER SHEET . Mark only ONE answer for each question. Your score will be the number of correct answers. Marks are NOT deducted for incorrect answers . Use the information provided to choose the BEST answer from the four possible options. On your ANSWER SHEET fill in the oval that matches your answer . You may use a calculator and a ruler. DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED. Note : Some UNSW Global assessments are only available online.Β© UNSW Global Pty Limited 2 1. The following flow chart can be used to distinguish between some elements. Element Y is sulfur and element X is carbon. 100 10 10·1 0·01 0·001 2 0·062 0·004 :KLFKIHDWXUHLVXVHGLQWKHNH\WRGLVWLQJXLVKEHWZHHQWKHP" $ &DUERQLVEODFNDQGVXOIXULV\HOORZ % &DUERQLVDFRQGXFWRUDQGVXOIXULVDQLQVXODWRU & &DUERQLVDJDVDQGVXOIXULVQRWDJDV ' 6XOIXUEXUQVZLWKDΐDPHDQGFDUERQJORZVUHGKRW
3 Β© UNSW Global Pty Limited For questions 2 and 3 use the information below. The diagram shows the sizes of some deep-sea sediments. 100 1010·1 0·01 0·001 2 0·062 0·004 2. Which sediment is likely to completely pass through a sieve with mesh size 0.1 mm? (A) coccoliths (B) radiolaria (C) diatoms (D) pteropods 3. Which sediments would be hardest to separate from each other using sieves? (A) whalesβ ear bones and sharkβs teeth (B) radiolaria and sponge spicules (C) silicoflagellates and pteropods (D) diatoms and pteropods
Β© UNSW Global Pty Limited 4 For questions 4 and 5 use the information below. Reports about science experiments often include: β’ a title β’ an introduction β’ an aim β’ a method of how the experiment was to be carried out β’ results (what was observed) β’ a discussion of the results β’ a conclusion A student wrote a report containing a number of points. Conclusion correct? Reason (A) noThe marble went through the water the slowest. (B) yesThe marble went through the water the slowest. (C) yesThe marble went through the honey the slowest. (D) noThe marble went through the honey the slowest. 4. Which points are the studentβs results? (A) 4 and 5 (B) 5 and 6 (C) 6 and 7 (D) 7 and 8 5. Was the studentβs conclusion correct? Why? Conclusion correct? Reason (A) noThe marble went through the water the slowest. (B) yesThe marble went through the water the slowest. (C) yesThe marble went through the honey the slowest. (D) noThe marble went through the honey the slowest. END OF PAPER
Print your details clearly in the boxes provided. Make sure you fill in only one oval in each column. Rub out all mistakes completely. Do not use a coloured pencil or pen. HOW TO FILL OUT THIS SH\ EET: USE A PENCIL FIRST NAME to appear on certifi\icate LAST NAME to appear on certifi\icate A A A A A A A A A A A A A A A A A A A B B B B B B B B B B B B B B B B B B B C C C C C C C C C C C C C C C C C C C D D D D D D D D D D D D D D D D D D D E E E E E E E E E E E E E E E E E E E F F F F F F F F F F F F F F F F F F F G G G G G G G G G G G G G G G G G G G H H H H H H H H H H H H H H H H H H H I I I I I I I I I I I I I I I I I I I J J J J J J J J J J J J J J J J J J J K K K K K K K K K K K K K K K K K K K L L L L L L L L L L L L L L L L L L L M M M M M M M M M M M M M M M M M M M N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O P P P P P P P P P P P P P P P P P P P Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q R R R R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S S S S T T T T T T T T T T T T T T T T T T T U U U U U U U U U U U U U U U U U U U V V V V V V V V V V V V V V V V V V V W W W W W W W W W W W W W W W W W W W X X X X X X X X X X X X X X X X X X X Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β / / / / / / / / / / / / / / / / / / / DATE OF BIRTH STUDENT IDCLASS DayMonth \bear (optional) (optional) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 A K 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B L 2 2 2 2 2 2 2 2 2 2 2 2 2 2 C M 3 3 3 3 3 3 3 3 3 3 3 3 3 3 D N 4 4 4 4 4 4 4 4 4 4 4 4 4 E O 5 5 5 5 5 5 5 5 5 5 5 5 5 F P 6 6 6 6 6 6 6 6 6 6 6 6 6 G Q 7 7 7 7 7 7 7 7 7 7 7 7 7 H R 8 8 8 8 8 8 8 8 8 8 8 8 8 I S 9 9 9 9 9 9 9 9 9 9 9 9 9 J T A A A A A A A A A A A A A A A A A A A A A A A A B B B B B B B B B B B B B B B B B B B B B B B B C C C C C C C C C C C C C C C C C C C C C C C C D D D D D D D D D D D D D D D D D D D D D D D D E E E E E E E E E E E E E E E E E E E E E E E E F F F F F F F F F F F F F F F F F F F F F F F F G G G G G G G G G G G G G G G G G G G G G G G G H H H H H H H H H H H H H H H H H H H H H H H H I I I I I I I I I I I I I I I I I I I I I I I I J J J J J J J J J J J J J J J J J J J J J J J J K K K K K K K K K K K K K K K K K K K K K K K K L L L L L L L L L L L L L L L L L L L L L L L L M M M M M M M M M M M M M M M M M M M M M M M M N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O P P P P P P P P P P P P P P P P P P P P P P P P Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q R R R R R R R R R R R R R R R R R R R R R R R R S S S S S S S S S S S S S S S S S S S S S S S S T T T T T T T T T T T T T T T T T T T T T T T T U U U U U U U U U U U U U U U U U U U U U U U U V V V V V V V V V V V V V V V V V V V V V V V V W W W W W W W W W W W W W W W W W W W W W W W W X X X X X X X X X X X X X X X X X X X X X X X X Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β / / / / / / / / / / / / / / / / / / / / / / / / Are you male or fema\Mle? Male Female Does anyone in your h\Mome usually speak a language othe\Mr than English? \be s No School name: Town / suburb: Todayβs date: / / Postcode: PAPER EXAMPLE 1: Debbie Bach FIRST NAME LAST NAME ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD EEEE EEE EE EEE EXAMPLE 3: Jamal bin Abas FIRST NAME LAST NAME ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD EEEEEE EEE EEEE EXAMPLE 2: Chan Ai Beng FIRST NAME LAST NAME ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD EE EEE EEEEE EEE S SAMPLE PA PE R F *201908*
TO ANSWER THE QUESTIONS Example: 1 A B C D 2 A B C D 3 A B C D 4 A B C D 5 A B C D START Ari added cordial to water to make a jug of drink. What will be the volume of the drink in the jug? (A) 50 mL (B) 150 mL (C) 200 mL (D) 250 mL The answer is 250 mL, so you would fill in the oval D, as shown. D C B A USE A PENCIL \bO NOT USE A COLOURE\b PENCIL OR PEN S TO ANS For details on how \mwe handle your personal information, please see our Privacy Policy on our we\bsite at unswglobal.unsw.edu.au PA PE R F
7 Β© UNSW Global Pty Limited \ ICAS Science Practice Questions Paper F Β© EAA QUESTION KEY KEY REASONINGLEVEL OF DIFFICULTY 1B From the flow chart, both sulphur and carbon are non-metals, neither of them is a gas but one of them is a conductor and the other an insulator. Black is not in the key, so A is w rong. Carbon is a solid, so C is wrong. How they burn is not in the key, so D is wrong. Easy 2A To completely pass through a sieve with a mesh size 0.1 mm, the sediments must be smaller than 0.1 mm. Of the four sediments listed only coccolith\ s are completely smaller than 0.1 mm (0.1 mm > size of coccolith > 0.004 mm)\ . Medium/Hard 3B If the sediments are similar in size, they would be difficult to separate using sieves. The greater percentage of overlap, the more difficult they would be to separate with a sieve. The greatest percentage of overlap occurs between radiolaria and sponge spicules. Medium/Hard 4C Results are βobservationsβ made using our five senses, particularly sight. W\ e can see the marbles above the jars at time = 0 s, and we can see the jars with the marbles in them at t = 1 s, at different positions within the liquids. So point 6 and point 7 of the report are observations. Note that which liquid is the most or least viscous is an inference which is based on observations. It itself is not an observation. Medium/Hard 5D The more viscous the liquid, the slower the marble will pass though it. After 1 s the slowest marble will have moved the smallest distance. This occur\ s in honey; therefore, it is the most viscous of these liquids. Medium/Hard LEGEND Level of difficulty refers to the expected level of difficulty for the question. Easy more than 70% of candidates will choose the correct option. Medium about 50β70% of candidates will choose the correct option. Medium/Hard about 30β50% of candidates will choose the correct option. Hard less than 30% of candidates will choose the correct option. TO ANSWER THE QUESTIONS Example: 1 A B C D 2 A B C D 3 A B C D 4 A B C D 5 A B C D START Ari added cordial to water to make a jug of drink. What will be the volume of the drink in the jug? (A) 50 mL (B) 150 mL (C) 200 mL (D) 250 mL The answer is 250 mL, so you would fill in the oval D, as shown. D C B A USE A PENCIL \bO NOT USE A COLOURE\b PENCIL OR PEN S SAMPLE For details on how \mwe handle your personal information, please see our Privacy Policy on our we\bsite at unswglobal.unsw.edu.au PA PE R F
Β© 2019 Copyright. Copyright in this publication is owned by UNSW Global Pty Limited, unless other wise indicated or licensed from a third party. This publication and associated testing materials and products may not be reproduced, published or sold, in whole or part, in any medium, without the permission of UNSW Global Pty Limited or relevant copyright owner. 1 All international schools registered with UNSW Global (which have an 8-digit school code star ting with 46) should sit the papers according to the Australian year levels. 2 Indian Subcontinent Region: India, Sri Lanka, Nepal, Bhutan and Bangladesh. 3 Middle East Region: United Arab Emirates, Qatar, Kuwait, Saudi Arabia, Bahrain, Oman, Turkey, Lebanon, Tunisia, Morocco, Libya, Algeria, Jordan and Pakistan. 4 Pacific Region: Vanuatu, Papua New Guinea and Fiji.5 Southern Africa Region: South Africa, Botswana, Lesotho, Swaziland, Zimbabwe and Namibia. THE FOLLOWING YEAR LEVELS SHOULD SIT THIS PAPER Australia 1 Year 8 Brunei Form 2 & 3 Egypt Year 8 Hong Kong Form 2 Indian Subcontinent 2 Class 8 Indonesia Year 9 Malaysia Form 2 Middle East 3 Class 8 New Zealand/ Pacific 4 Year 9 Singapore Secondary 1 Southern Africa 5 Grade 8 PA PE R F