[PDF] ICAS Practice Questions Science Paper B.pdf | Plain Text

B PAPER DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED. STUDENT’S NAME: Read the instructions on the ANSWER SHEET and fill in your NAME, SCHOOL and OTHER IN\bORMATION. Use a 2B or B pencil. Do NOT use a pen. Ru\b out any mistakes completely. You MUST record your answers on the ANSWER SHEET. SCIENCE Mark only ONE answer for each question. Your score will \be the num\ber of correct answers. Marks are NOT deducted for incorrect answers. Use the information provided to choose the BEST answer from the four possi\ble options. On your ANSWER SHEET fill in the oval that matches your answer. You may use a calculator and a ruler. I n t e r n a t i o n a l C o m p e t i t i o n s and Assessments for Schools Practice Q uestions

ICAS Science Practice Questions Paper B © EAA 2 1. The drawing shows some parts of the human digestive system. oesophagus liver stomach large intestine gall bladder mouth small intestine What does food pass through on its way from the mouth to the stomach? (A) gall bladder (B) large intestine (C) oesophagus (D) small intestine 2. Which glass object shown would be the best to measure an amount of water? (A) (B) (D) (C)

3 ICAS Science Practice Questions Paper B © EAA For questions 3 and 4 use the information below. Some students wanted to know what attracts honeybees to flowers. colour test beehive taste test (A) (B) (C) (D) yelloworangeblue bluepink white blue purple The students placed circles of coloured paper and circles of brown paper soaked in different solutions (salty, sweet and sour) around a beehive. All the circles were the same size. The number of bees that visited each paper circle is shown in the table. Type of paper Number of bees attracted blue 80 green 10 orange 7 pink 8 purple 75 red 6 white 120 yellow 50 salty (salt and water) 2 sweet (sugar and water) 12 sour (lemon juice) 5 3. What could the children conclude from their experiment? The honey bees were mainly attracted to an object by its (A) smell. (B) colour. (C) shape. (D) taste. 4. Which flower would be likely to attract the most bees? colour test beehive taste test (A) (B) (C) (D) yelloworangeblue bluepink white blue purple

ICAS Science Practice Questions Paper B © EAA 4 5. Syrups are thick, sticky liquids. The thicker the syrup, the slower it will move down a slope. The graph shows the distance 4 different syrups moved down a slope in one minute. 0 purpl e yellow Distance syrup moved (cm) Syrup green blue 10 20 30 40 50 Which syrup is the thickest? (A) blue (B) green (C) yellow (D) purple

5 ICAS Science Practice Questions Paper B © EAA 6. The table shows the weather and type of birds seen in the school playground during one week. Day Weather Cockatoos visit Seagulls visit Hot ColdWindy Calm Monday 4 44 Tuesday 4 4 4 Wednesday 4 4 4 Thursday 444 Friday 44 4 Cockatoos are most likely to visit the school playground on a day that is (A) hot. (B) cold. (C) windy. (D) calm. 7. 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 magnified ant actual size ant

ICAS Science Practice Questions Paper B © EAA 6 For questions 8 and 9 use the information below. Some students wanted to know what effect the position of the mast had on the speed of a sailboat. They made four model sailboats (W, X, Y and Z) using the design shown. The sailboats were the same except for the positions of their masts. Each mast was placed a dif ferent distance from the bow. wooden boom cardboard sail cardboard hull cardboard rudder string wooden mast stringbow W XY Sailboats Distance from bow to mast Distance travelled in 5 minutes Sailboats Z WXY Z W X Y Z Increasing distance KEY distance travelled in 5 minutes distance from the front of bow to mast location Sailboat (A) (B) (C) (D) The graphs show the distances from the bow to the mast for each of the boats and the distances each boat travelled in 5 minutes. wooden boom cardboard sail cardboard hull cardboard rudder string wooden mast stringbow W XY Sailboats Distance from bow to mast Distance travelled in 5 minutes Sailboats Z WXY Z W X Y Z Increasing distance KEY distance travelled in 5 minutes distance from the front of bow to mast location Sailboat (A) (B) (C) (D) 8. Which sailboat was the slowest? (A) W (B) X (C) Y (D) Z 9. The students’ test of the effects of mast position on boat speed was a fair one. What must the students have done to ensure the test was fair? (A) make all the sails the same size (B) make sails from different types of cardboard (C) put the mast the same distance from the bow in each boat (D) put the wooden boom at the bottom of the sail in boats X and Y

7 ICAS Science Practice Questions Paper B © EAA 10. The picture shows what students observed as they watched a colony of black ants. red ant black ant foodant hole antenna The students thought that the ants used their antennas to identify: 1. colony ants and other ants 2. the trail they followed to their hole 3. food Which idea(s) listed above are supported by the observations the students made? (A) 1 only (B) 1 and 2 only (C) 1 and 3 only (D) 3 only

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ICAS Science Practice Questions Paper B © EAA QUESTIONKEYKEY rEa SONINg LEVEL OF DIFFICULTY 1 CThe upper part of the human digestive tract is made up of the mouth, oesophagus and stomach. The gall bladder, large intestine and small intestine make up the lower part of the digestive tract, hence, A, B and D are wrong. The oesophagus is between the mouth and the stomach. Easy 2 AFour glass objects are shown: a measuring cylinder, a test tube, a round bottom flask and a funnel. Graduations (marks), which are only on the measuring cylinder, allow different amounts of water to be measured accurately. Easy 3 BMost bees visited white (120), then blue (80), then purple (75) and then yellow (50) paper. The most visited taste was sweet (12) and then sour (5). All the objects were the same shape, so C is wrong. There is no information about smell, therefore, the children cannot conclude that honey bees were attracted to an object by its smell, so A is wrong. Only a small number of bees visited circles with taste, so D is wrong. Easy 4 DMost bees visited the colour white, with blue the second most visited colour. A white and blue flower is likely to attract the most bees, based on this evidence. Easy 5 AThe thickest syrup would be the slowest to move down a slope. This means that the thickest syrup would travel the least distance in one minute down the same slope. From the column (bar) graph, the blue syrup travelled the smallest distance, so the thickest syrup is the blue. The least thick (runniest) syrup would travel the fastest down the slope, and so in one minute would travel the greatest distance down the slope, so B (green) is incorrect. Medium 6 DThe ticks in the table show some of the weather conditions and the type of bird visiting the playground during one week. The cockatoos visited when it was hot and calm, and when it was cold and calm, but not when it was windy. Therefore they were most likely to visit when it was calm. Medium 7 CThe length of the magnified ant’s body is about 12 mm while its actual length is about 6 mm. This makes the magnified ant       =2 6 12 twice as large. (Note that when printing out these questions, some printers may distort the size of the image.) Medium 8 DThe speed of the boats is determined by the distance they travelled in 5 minutes, so we must use the second (blue) graph. The slowest boat travelled the smallest distance in 5 minutes, so the correct answer is D. Medium 9 ATo test the effect of the position of the mast on the boat speed we must change the position of the mast, so answer C is wrong. For the test to be fair all other things must be kept the same, so answers B and D are wrong. Medium 10 CAn observation is something we detect with one (or more) of our senses, e.g. sight. We can observe two black ants with their antenna touching and one black with one red ant with their antenna touching, so idea 1 is supported. This makes answer D wrong. We can observe three black ants around a piece of food touching it with their antennas, so idea 3 is supported. This makes answer A wrong. We cannot observe any trails, so idea 2 is not supported by an observation the students made. This makes answer B wrong. Medium/Hard

ICAS Science Practice Questions Paper B © EAA 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.