ASIAN SCIENCES OLYMPIAD

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1 OLYPIAD Full Name: Year: IC No: Date: Time: School Name: School Code: Rules and Regulations (Please read these rules and regulation carefully) 1. Please fill in your FULL name correctly, IC no, school name, school code (if available) and the date and time of contest clearly in the spaces above. Those who do not fill in the required particulars will be disqualified automatically. 2. Do not open the question booklet until you are told to do so. 3. No calculators and any unauthorised electronic devices (including mobile phones) are allowed during the contest. 4. Strict silence must be observed at all times in the examination hall and please be reminded that you AY NOT leave your seat without permission. 5. If you have any request or enquiry, please raise your hand and wait for an invigilator. 6. Only one candidate is allowed to leave the hall at a time. You are required to return to the hall within 10 minutes or else you will automatically be disqualified from the contest. 7. Each question in the contest have been verified by experienced trainers, thus no further explanation will be given. 8. The time allowed for the paper is 60 minutes. You must stop writing when you are told to do so. 9. You UST fill in your answer in the answer sheet provided in second page of the question booklet. You will not be awarded marks for any answer written in the question booklet. 10. Please be reminded that this is a contest and not an examination, try your level best to answer all questions within the prescribed time. 11. Please tear off the answer sheet carefully and returned to invigilator along with contest paper. Participant only can bring back the contest papers on next week. Scoring System 1. For Question 1-10, 3 marks will be awarded for each correct answer. For Question 11-20, 4 marks will be awarded for each correct answer. For Question 21-25, 6 marks will be awarded for each correct answer. However, you will NOT be penalised for each incorrect answer. 2. The organizer reserves the right to disqualified the event of malpractice to differentiate between those outstanding students. 3. Contestants or a team who are disqualified from the contest will be forfeited any right to re-sit this year.

2 2016 ANSWER SHEET a) b) a) b) c) d)

3 OLYPIAD 1-20 are ultiple Choices Questions. 1. Which of the following is true about atmospheric pressure? A. Atmospheric pressure increases with altitude. B. Atmospheric pressure is caused by the weight of the atmosphere. C. Atmospheric pressure produces buoyancy forces on an object. D. Atmospheric pressure can be measured by using a calorimeter. (3 arks) 2. Which of the following does not change during refraction of light from one medium into another medium? A. Velocity B. Direction C. Wavelength D. Frequency (3 arks) 3. The lengths of a mercury column in a thermometer at various temperatures are shown below. Temperature elting point of ice Boiling point of water T Length 5.0 cm 25.0 cm 10.0 cm What is the value of temperature T in degree Celsius ( C) A. 20 B. 25 C. 30 D. 35 (3 arks)

4 OLYPIAD 4. Insects remove its old exoskeleton and replace it with a new larger one periodically during growth. What is the name of above process? A. Ecdysis B. Thrombosis C. Dialysis D. Assimilation (3 arks) 5. A food pyramid or diet pyramid is a pyramid-shaped diagram representing the optimal number of servings to be eaten each day from each of the basic food groups. The larger the area of the food pyramid, the more important it is in our diet. P Q Which of the following combination is the most appropriate according to the food pyramid above? P Q R A. Ice-cream Rice Vegetables B. Vegetables Ice-cream Rice C. Rice Ice-cream Vegetables D. Ice-cream Vegetables Rice (3 arks) R

5 OLYPIAD 6. Diagram above shows a food web in a tropical rainforest. According to the diagram, X is a herbivore and Y is an omnivore. X and Y respectively refers to A. Green Plant and Owl B. Grasshopper and ouse C. ouse and Snake D. Frog and ouse (3 arks) 7. Diagram above shows a cross section through a part of human lung. What are the adaptations of alveolus which increases the rate of gaseous exchange? I. Located close to blood capillaries II. Able to expand and contract III. Small surface area IV. Covered by a thin film of moisture A. II and IV B. II and III C. I and III D. I and IV (3 arks)

6 OLYPIAD 8. According to the Law of Conservation of ass, the total mass of all the substances taking part in a chemical reaction remains the same after the reaction. Which chemical equation below is correctly balanced? A. Zn + H2SO4 ZnSO4 + H2 B. Zn + HCl ZnCl2 + H2 C. K + O2 K2O D. K + Cl2 KCl (3 arks) 9. During the process of electrolysis of water, water molecule (H2O) is decomposed into hydrogen gas and oxygen. If 50 cm 3 of hydrogen gas is collected during a experiment of electrolysis of water, how much oxygen would be collected during the same experiment? A. 25 cm 3 B. 50cm 3 C. 75cm 3 D. 100cm 3 (3 arks) 10. Substance X has a melting point of -100 C and a boiling point of -35 C. What probably is substance X? A. ercury B. Sulphur C. Alcohol D. Carbon Dioxide//gaseous state in room temperature (3 arks) 11. Naturally occurring chlorine gas consists of two isotopes, 75% of 35 Cl and 25% of 37 Cl. What is the relative atomic mass of chlorine? A B C D (3 arks)

7 OLYPIAD 12. The technique of DNA fingerprinting is based on the principle that A. The fingerprint of every individual is different from that of another. B. The DNA can be obtained easily from the skin of the fingers. C. Every individual possesses a set of DNA which is unique. D. The DNA pattern can be easily identified from fingerprints. (4 arks) 13. Forest in middle Europe, where six species of small birds called Titmice coexist because eachspecies slightly differed in beaks size. This will allow different species to eat differently in the samefeeding area. E.g. Titmice with longer beaks capture longer insects. All six species evolved from an identical ancestor and that the variation in beak size seen today is the result of A. Commensalism B. Competition C. Parasitism D. Natural selection (4 arks) 14. Diagram above shows a simple circuit where a light bulb is connected in series with battery and switch. The brightness of the light bulb can be increased by the following actions except A. Using more batteries. B. Using connecting wire with smaller radius. C. Doing the experiment in an ice room. D. Using a shorter connecting wire. (4 arks)

8 OLYPIAD 15. X referred to a weak, anabnormal warming of surface ocean waters appearing annually aroundchristmas time along the coast of Ecuador and Peru and lasting only afew weeks to a month or more. What is X? A. El Nino B. Coriolis effect C. Global warming D. Greenhouse effect (4 arks) 16. Danny uses a micrometer screw gauge to measure the thickness of an exercise book. The reading of the micrometer screw gauge is as shown in diagram above. What is the total thickness of two similar exercise books? A. 6.58mm B. 6.62mm C. 6.98mm D. 7.62mm (4 arks) 17. Nine resistors of respective resistance are arranged in a circuit as shown in diagram above. What is the current supplied by the battery? A. 0.15A B. 0.50A C. 0.75A D. 1.25A (4 arks)

9 OLYPIAD 18. Adenine was riding on a motorboat traveling North at a speed of 4.0 m/s across a 40m wide river. If she encountered a current traveling 3.0 m/s east, how far did she travelled from the starting point once she reached the opposite of the river. A. 50.0m B. 60.0m C. 70.0m D. 80.0m (4 arks) 19. A chemist is pouring 20ml of solution X of 10% concentration into a beaker of the same solution of 18% concentration, producing 15% concentration of solution X. How much solution X is there in the beaker initially? A. 15.5ml B. 26.0ml C. 33.3ml D. 40.0ml (4 arks) 20. Which of the following is not a type of intermolecular bonding? A. Covalent bond B. Ionic bond C. etallic bond D. Hydrogen bond (4 arks)

10 OLYPIAD Question are Short Answer Questions. 21. Radio-carbon dating is used to estimate the age of organic materials that were once living. Carbon-14 ( 14 C) which has a half-life of 5700 years will decay to carbon-12 ( 12 C). At any particular time all living organisms have the fixed ratio of 12 C to 14 C in their tissues. When an organism dies it ceases to replenish carbon and 14 C starts to decay to 12 C hence changes the ratio 12 C: 14 C. Archeologists measure 12 C: 14 C in dead material to estimate the date of its death. 1 gram of a tissue of a dead tree has 2.4x10 21 atoms of 12 C and 0.16x10 21 atoms of 14 C. From given information, the tree dead years ago. (Assume that 12 C : 14 C = 1:1 when the tree is alive) (6 arks) 22. Alice and Julie are standing along the equator of the Earth 2500km apart where Alice is at the West of Julie. Both of them are facing the East sky and waiting for the sun rise. When each of them sees the first ray of sun at respective location, the time is recorded. Assuming the sky is totally clear of cloud and dust, Julie saw the first ray of sun at 6:15a.m. While Alice saw it at 7:45a.m.What is the estimate of the radius of the Earth in whole number? (Take ) (6 arks) 23. Two trains of length 60m travel in opposite direction from Kuala Lumpur station and Ipoh station respectively on two different parallel railways. Train a travels with a constant speed of 8m/s throughout the journey. Train B travels with a constant speed initially. It was then travelled across a bridge of 180m in 1 minute. At this moment, Train A has travelled 26.8km. Train B is then speeds up immediately so that they can meet at point C which is located ¾ of the remaining distant between two trains away from current location. After 93 minutes, they met. What is the length of the railways in nearest km? (6 arks) 24. The chart shows a diagram of a plant divided into four parts. Each part is a different plant structure that serves a different function. Some of the structures and functions are shown. Complete the blank spaces in the chart by identifying the plant structure shown in the diagram.

11 OLYPIAD a) b) (6 arks) 25. The diagram below shows four kittens labeled A, B, C, and D. The kittens have the same parents. Placing (IT/LT/AT) in the column(answer Sheet) to show whether the example describes an inherited trait (IT), a learned trait(lt), or an acquired trait(at). a) Kitten A has long whiskers. b) Kitten B has black spots. c) Kitten C goes to its food bowl when it hears the food being opened. d) Kitten D has lost part of its ear in a fight. (6 arks) THE END