[PDF] 2019 Reach and ICAS Practice Questions Science Paper C.pdf | Plain Text

Science PRACTICE QUESTIONS PA PE R C 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.

© UNSW Global Pty Limited 2 1. The graph shows the number of each type of bee caught in different coloured traps during an experiment. Number of bees caught Colour of trap 80 70 60 50 40 30 20 10 0 blue green red white yellow KEY honey bee bumble bee native bee What was the colour of the trap in which most of the honey bees were cau\ ght? (A) blue (B) green (C) white (D) yellow

3 © UNSW Global Pty Limited 2. An ant is shown at its actual size and as it appeared through a magnifying glass. How many times larger did the ant appear through the magnifying glass? (A) half as large (B) one and a half times as large (C) twice as large (D) two and a half times as large 3. Viscosity is a measure of a liquid’s thickness and stickiness. The more viscous the liquid, the longer it takes for an object to pass through it. Generally, the viscosity of a liquid decreases as temperature increases. The diagram shows the distances clay balls of the same size pass through\ four motor oils in the same time. The four oils were at the room temperature. W XYZ magnified ant actual size ant When cold, high viscosity motor oil may not get to the part of the engin\ e it is supposed to protect. When hot, low viscosity oil may not protect engine parts because it does not stick\ to them. Which motor oil would be best for protecting engine parts at high temper\ atures? (A) W (B) X (C) Y (D) Z W XYZ magnified ant actual size ant

© UNSW Global Pty Limited 4 For questions 4 and 5 use the information below. Mud bricks are made from a mixture of clay, sand and straw. The mixture is poured into a wooden mould until it becomes firm. The moulded bricks are then turned out of the moulds and dried over time in the sun. The table gives some information about mud bricks made by some students.\ Each student used the same amount of water and made the same amount of brick mixture. StudentComposition by volume (%) Brick making Information Clay Sand Straw Straw length (cm) Size (cm 3) (length × widt h × thickness) T urning time (hours) Drying time (days) Jan 304030 550 × 20 × 15 2420 John 157015 550 × 20 × 15 2420 Mary 157015 1050 × 30 × 15 2420 Matt 304030 1050 × 20 × 15 1220 4. After 10 days Jan’s bricks were dry on both sides, but Matt’s bricks were dry on one side only. What would most likely account for this difference? (A) Jan used more sand to make each brick than Matt. (B) Jan used less water to make her bricks than Matt. (C) Matt’s bricks were thicker than Jan’s bricks. (D) Matt turned his bricks so that one side never faced the sun. 5. The diagram shows how the students tested their mud bricks to see which one was strongest. StudentComposition by volume (%) Brick making Information Clay Sand Straw Straw length (cm) Size (cm 3) (length × widt h × thickness) T urning time (hours) Drying time (days) Jan 304030 550 × 20 × 15 2420 John 157015 550 × 20 × 15 2420 Mary 157015 1050 × 30 × 15 2420 Matt 304030 1050 × 20 × 15 1220 Mary’s bricks were the strongest. Which characteristic of the strongest brick distinguishes it from the ot\ her bricks? (A) brick width (B) drying time (C) straw length (D) brick composition 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 ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ – – – – – – – – – – – – – – – – – – – / / / / / / / / / / / / / / / / / / / 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 ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ – – – – – – – – – – – – – – – – – – – – – – – – / / / / / / / / / / / / / / / / / / / / / / / / 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: Today’s 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 C *201905*

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 C

7 © UNSW Global Pty Limited \ ICAS Science Practice Questions Paper C © EAA QUESTIONKEYKEY REASONING LEVEL OF DIFFICUL TY 1 CThe question only r efers to the honey bee not any of the others, thus we only look at the honey bee (blue) column (bar) graph. F rom the graph, the highest honey bee column (bar) is for the white trap. Easy 2 CThe length of the magnified ant’s body is about 12 mm while its actua\ l length is about 6 mm. This mak es the magnified ant       =2 6 12 twice as lar ge. (Note that when printing out these questions, some printers may distort\ the size of the image.) Medium 3 DThe question only r efers to high temperatur es. The oil with the greatest viscosity is needed as this type of oil will best stick to the engine pa\ rts at high temperatur es. The oil with the gr eatest viscosity is the one in which the ball travels the smallest distance in the same time i.e. the ball dr ops through it the slowest. Medium/Har d 4 DWhat was differ ent between Jan ’s and Matt’s brick? The per centage of sand was the same and so was the size of the brick, so A is wr ong. Each student used the same amount of water , so B is wrong. The sizes of the bricks wer e the same, so C is wr ong. The correct answer is D as it is the only thing Matt and Jan did differ ently. If, over the course of 10 days, Matt turns over the brick at 7 am and again 12 hours later at 7 pm, only one side of the brick would \ face the Sun. Medium 5 AThe drying time of Mary’s brick is the same as all the others, so B i\ s wr ong. The straw length of her brick is the same as Matt’s, so C is wr ong. Her brick composition is the same as John ’s so D is wrong. Only the width of her brick is differ ent (50 x 30 x 15). Medium/Har d LEGEND Level of difficulty r efers to the expected level of difficulty for the question. Easy more than 70% of candidates will choose the cor rect option. Medium about 50–70% of candidates will choose the cor rect option. Medium/Har d about 30–50% of candidates will choose the cor rect option. Har d less than 30% of candidates will choose the cor rect 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 C

© 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 5 Brunei Primary 5 Egypt Year 5 Hong Kong Primary 5 Indian Subcontinent 2 Class 5 Indonesia Year 6 Malaysia Standard 5 Middle East 3 Class 5 New Zealand/ Pacific 4 Year 6 Singapore Primary 4 Southern Africa 5 Grade 5 PA PE R C