PAPER. Practice Questions SCIENCE. International Competitions and Assessments for Schools STUDENT S NAME: DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED.

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1 ractice uestions nternational ompetitions and ssessments for chools U U. U : ead the instructions on the and fill in your, and. Use a 2 or pencil. o use a pen. ub out any mistakes completely. ou U record your answers on the. ark only answer for each question. our score will be the number of correct answers. arks are deducted for incorrect answers. Use the information provided to choose the answer from the four possible options. n your fill in the oval that matches your answer. ou may use a calculator and a ruler.

2 . hich glass object shown would be the best to measure an amount of water? () () () () 2. he drawing shows the body parts of a snail. long tentacle eye short tentacle breathing hole hard shell head o which part of the snails body is an eye attached? foot () breathing hole () hard shell () long tentacle () short tentacle 3. cientists found the remains of some animals in a cave. he graph shows the number and type of the remains. umber of remains 5 5 leg bones teeth skulls backbones ype of remains ow many backbones were found? () 3 () 6 () 9 () cience ractice uestions aper 2

3 4. ocks are made up of one or more different minerals. he block below contains three different minerals. rom which of these large sections of rock was the block cut? () () () () 5. ome ear 3 students saw their teacher put a plastic bag over some leaves of a plant on a sunny day. ne day later, they saw drops of water on the inside of the plastic bag. he teacher explained that the water had come from the leaves of the plant. water drops on inside of bag bag sealed he students thought this method might also work to find out if soil has water in it. hey set up the pots below and put them in a sunny place. ot ot soil plastic bags empty pot bag sealed heir method of testing for water in soil worked positively. hat must the students have observed in the experiment? () () () () ater formed on the inside of the plastic bag over pot only. ater formed on the inside of the plastic bag over pot only. ater formed on the inside of neither plastic bag. ater formed on the inside of both plastic bags. 3 cience ractice uestions aper

4 6. iquids that spread quickly through a paper towel are absorbed better than those that spread more slowly. ome children put one measured drop of four different liquids on a piece of paper towel. he drawing shows their results after one minute. hich liquid was best absorbed by the paper towel? () () soap () sauce () milk water 7. ick measured a nail as shown in the diagram cm hich bar on the graph represents icks measurement? easurements () () () () ength (cm) cience ractice uestions aper 4

5 or questions 8 and 9 use the information below. ome students made phones from a ball of string and empty tin cans as shown. ne student listened with her ear against this end. empty tin can string ne student spoke with her mouth against this end. hey tested which string phone worked best by comparing the loudness of the voice heard at the listening end. hey showed the phones in order from best phone to worst phone. best phone worst phone string tight string loose 8. hich description matches the best string phone? () () () () short, loose string with small cans short, tight string with large cans long, tight string with large cans short, tight string with small cans 9. hich condition was necessary to make this a fair test? () () () () the tin cans were all the same size the strings between the cans were kept tight the strings between the cans were kept the same length the same student listened and the same student spoke on each phone 5 cience ractice uestions aper

6 . he un rises in the east and sets in the west. he drawing shows a view from above of a schoolyard early in the morning. road tree office classrooms shadow wall hich pointer is correctly showing north for this view of the schoolyard? () () () () cience ractice uestions aper 6

7 his page may be used for working. 7 cience ractice uestions aper

8 cknowledgment opyright in this booklet is owned by ducational ssessment ustralia, U lobal ty imited, unless otherwise indicated. very effort has been made to trace and acknowledge copyright. ducational ssessment ustralia apologises for any accidental infringement and welcomes information to redress the situation. he following year levels should sit aper: ustralia ear 3 runei rimary 3 ong ong rimary 3 ndonesia ear 4 alaysia tandard 3 ew ealand ear 4 acific ear 3 ingapore rimary 2 outh frica rade 3 U U ducational ssessment ustralia eaa.unsw.edu.au 2 ducational ssessment ustralia. is an education group of U lobal ty imited, a not-for-profit provider of education, training and consulting services and a wholly owned enterprise of the University of ew outh ales

9 to appear on certificate to appear on certificate re you male or female? ale emale oes anyone in your home usually speak a language other than nglish? es o chool name: own suburb: odays date: ostcode: ay onth ear (optional) U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U : ub out all mistakes completely. rint your details clearly in the boxes provided. ake sure you fill in only one oval in each column. : ebbie ach 2: han i eng 3: amal bin bas U U aper a *4563* nternational ompetitions and ssessments for chools U

10 U xample: ri added cordial to water to make a jug of drink. hat will be the volume of the drink in the jug? () () () () 5 m 5 m 2 m 25 m he answer is 25 m, so you would fill in the oval, as shown our privacy is assured as fully complies with appropriate ustralian privacy legislation. isit for more details. aper a nternational ompetitions and ssessments for chools

11 U key reasoning 2 3 our glass objects are shown: a measuring cylinder, a test tube, a round bottom flask and a funnel. raduations (marks), which are only on the measuring cylinder, allow different amounts of water to be measured accurately. bserve the diagram carefully: the eyes are at the end of the long tentacles. he column (bar) graph that represents the number of backbones is a little under, so () is the best answer. U asy asy asy ptions, and all contain the three coloured minerals showing in the block, but only option () has the black line crossing the layers of the brown mineral and the three minerals in the correct sequence. he teacher explained that when a plastic bag was placed over a plant, the water that formed on the inside of the plastic bag had come from the plant. or the test to show that water came from the soil in the same manner, the water must form inside the plastic bag over the pot with soil in it (pot ), and water must not form inside the plastic bag over the pot with no soil in it (pot ). s all drops were the same measured size, the fastest spreading liquid would wet the biggest area of paper. his would be the liquid that was best absorbed by the paper. ater has the biggest wet area. ote that there are two scales, one for the nail and another for the graph. he nail is 4.5 cm long. he end of column is in line with the end of the nail but the graph scale indicates that the column is only 2 cm long, and so column is wrong. olumn is 5 cm long and column is almost 8 cm long, so they are both wrong. here are four string phones. rom the diagram, the far left phone is the best phone. t is short, it has a tight string and large cans. he students tested which phone worked best by changing the length of the string, the tightness of the string and the size of the cans. ptions, and describe the variables that the student changed in the test(s). ption describes the variable that needed to stay the same. s the shadows of the trees, buildings and walls are toward the bottom left hand corner, the un must be toward the top right hand corner. s this is early morning and the un rises in the east, the top right hand corner must be east. edium edium edium edium ediumard ediumard ard cience ractice uestions aper

12 evel of difficulty refers to the expected level of difficulty for the question. asy edium ediumard ard more than 7% of candidates will choose the correct option. about 57% of candidates will choose the correct option. about 35% of candidates will choose the correct option. less than 3% of candidates will choose the correct option. cience ractice uestions aper