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

1 © UNSW Global Pty Limited Science PRACTICE QUESTIONS PA PE R E 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. Mercury has a diameter of 4 900 km. Earth’s moon has a diameter of 3 500 km. The flow chart distinguishes between eight inner satellites of the planet Jupiter . Is its diameter equal to or greater than Earth's moon? Satellites orbiting Jupiter Is it made of dense rock? Is its diameter less than 50 km? Io Europa Thebe Ganymede AdrasteaAmalthea Callisto Metis yes yes yes yes yes yes no no no no no no yes no Is its diameter greater than the diameter of Mercury ? Is it the most volcanic object in the solar system? Is it spherical in shape? Is it longer than200 km in its largest dimension? One of Jupiter’s inner satellites has a diameter of 4 800 km and is not made of dense rock. Which satellite is this? (A) Io (B) Europa (C) Ganymede (D) Callisto

3 © UNSW Global Pty Limited 2. The table shows the characteristics that some flowers have to attract animals. Animal Size ColourSmell/odour bee smallbright blue or yellow – beetle largewhitespicy or foul small white – bird largered or yellow – bat large white fruity FlowerSize small white white red or yellow bright blue or yellow II V I IV III large Colour Colour fruity spicy or foul Odour I IV (A) bird beetle (B) bee bird (C) bird bee (D) bee bat The key classifies 5 flowers: I, II, III, IV and V. Animal Size ColourSmell/odour bee smallbright blue or yellow – beetle largewhitespicy or foul small white – bird largered or yellow – bat large white fruity Flower Size small white white red or yellow bright blue or yellow II V I IV III large Colour Colour fruity spicy or foul Odour I IV (A) bird beetle (B) bee bird (C) bird bee (D) bee bat Which animal would be attracted to flower I and which would be attracted to flower IV? Animal Size ColourSmell/odour bee smallbright blue or yellow – beetle largewhitespicy or foul small white – bird largered or yellow – bat large white fruity FlowerSize small white white red or yellow bright blue or yellow II V I IV III large Colour Colour fruity spicy or foul Odour I IV (A) bird beetle (B) bee bird (C) bird bee (D) bee bat

© UNSW Global Pty Limited 4 3. Peter has four types of string that he labels W, X, Y and Z. The diagram shows the maximum weight that each can support without breaking. W X Y Z 1 kg 3 kg 5 k g 10 k g (A) (B) \ (C) (D) Z Y X Z X Y Y X W 3 k g 3 kg 5 kg 3 kg 5 k g 5 kg 3 kg 5 kg 1 k g 1 kg 10 k g 5 kg Z Y X lid air gas lidair gas gas water gas collected Ga s Soluble in water Smell ammonia oxygen yes no Mass compared to equal volume of air less equal strong none Method 1 Method 2 Method 3 Gas Mass compared to mass of equal volume of air ammonia oxygen hydrogen methane carbon dioxide Soluble in water yesno no no yes less equal less less more Smell strong none none none none In which diagram will all the strings remain unbroken? W X Y Z 1 kg 3 kg 5 k g 10 k g (A) (B) \ (C) (D) Z Y X Z X Y Y X W 3 k g 3 kg 5 kg 3 kg 5 k g 5 kg 3 kg 5 kg 1 k g 1 kg 10 k g 5 kg Z Y X lid air gas lidair gas gas water gas collected Ga s Soluble in water Smell ammonia oxygen yes no Mass compared to equal volume of air less equal strong none Method 1 Method 2 Method 3 Gas Mass compared to mass of equal volume of air ammonia oxygen hydrogen methane carbon dioxide Soluble in water yesno no no yes less equal less less more Smell strong none none none none 4. The diagrams show three methods that are commonly used to collect gases. W X Y Z 1 kg 3 kg 5 k g 10 k g (A) (B) \ (C) (D) Z Y X Z X Y Y X W 3 k g 3 kg 5 kg 3 kg 5 k g 5 kg 3 kg 5 kg 1 k g 1 kg 10 k g 5 kg Z Y X lid air gas lid air gas gas water gas collected Ga s Soluble in water Smell ammonia oxygen yes no Mass compared to equal volume of air less equal strong none Method 1 Method 2 Method 3 Gas Mass compared to mass of equal volume of air ammonia oxygen hydrogen methane carbon dioxide Soluble in water yesno no no yes less equal less less more Smell strong none none none none Some colourless gases and their properties are shown. W X Y Z 1 kg 3 kg 5 k g 10 k g (A) (B) \ (C) (D) Z Y X Z X Y Y X W 3 k g 3 kg 5 kg 3 kg 5 k g 5 kg 3 kg 5 kg 1 k g 1 kg 10 k g 5 kg Z Y X lid air gas lidair gas gas water gas collected Ga s Soluble in water Smell ammonia oxygen yes no Mass compared to equal volume of air less equal strong none Method 1 Method 2 Method 3 Gas Mass compared to mass of equal volume of air ammonia oxygen hydrogen methane carbon dioxide Soluble in water yesno no no yes less equal less less more Smell strong none none none none A student wished to collect methane gas using method 3. What would be her biggest problem? (A) getting the methane to stay in the flask (B) knowing when the flask is full (C) preventing the methane from igniting (D) avoiding the strong smell of methane

5 © UNSW Global Pty Limited 5. Aquatic environments have a number of sources of pollutants. Pollutants from point sources come from specific places that can be easily identified and controlled. Non-point sources of pollutants are widespread, they usually cover a large area and cannot be easily measured or identified. The following table identifies some types of pollutants and their sources. Pollutant pathogens (bacteria and viruses) toxicants (heavy metals and pesticides) sediments nutrients (nitrates and phosphates) salinity heat Mines W astewater treatment plants Stormwater Agriculture Point sources Non-point sources Which statement is correct according to the information in the table? (A) Wastewater treatment plants are non-point sources of toxicant and nutrient pollution. (B) All listed sources of pollutants release sediment and pathogens into aquatic environments. (C) Mines and agriculture release the largest volume of pollutants into aquatic environments. (D) While the table shows different pollution sources, the volume of each pollutant is not shown. END OF PAPER

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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 E *201907*

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 E

9 © UNSW Global Pty Limited 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 E \ ICAS Science Practice Questions Paper E © EAA QUESTION KEY KEY REASONING LEVEL OF DIFFICULTY 1D Start at the top of the diagram. The satellite’s diameter of 4 800 km\ is greater than the diameter of the Earth’s moon (3 500 km), but less than Mer\ cury’s diameter of 4 900 km. Easy 2D The table identifies the characteristics of flowers that attract particu\ lar animals. The key classifies some flowers according to their characteristics. To arrive at the correct answer you must match the characteristics from the key to those given in the table. Easy 3D For the strings to remain unbroken, the strength of each string must exceed the mass it is required to support. That is, the top string must be capable of supporting the total mass of the three weights, the middle string must be capable of supporting the mass of the two weights beneath it, and the\ bottom string must be capable of supporting the mass of the bottom weigh\ t. This occurs only in option (D), where string Z (capable of supporting 10 kg) is supporting three weights with a total mass of 9 kg, string Y (capable of supporting 5 kg) is supporting two weights with a total mass of 4 kg\ , and string X (capable of supporting 3 kg) is supporting a mass of 1 kg. Medium/Hard 4B As methane has no smell, D is wrong. Because methane is less dense than air it will float upwards, so A is wrong. While methane is flammable, this will not hinder getting methane into the flask, so C is wrong. Medium/Hard 5D Wastewater treatment plants are point sources of pollution, so A is wrong. According to the table, wastewater treatment plants do not release sedim\ ents, so B is wrong. The table only shows the type of pollution and its source\ ; there is no information in the table that shows the correct volume of pollution produced, so C is wrong and D is correct. 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 50–70% of candidates will choose the correct option. Medium/Hard about 30–50% of candidates will choose the correct option. Hard less than 30% of candidates will choose the correct option.

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