Dost reviewer!!!!!!!!, Exams of Earth science

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ABOUT THE EXAMINATION

The DOST-SEI Undergraduate Science and Technology Scholarship Examination is continuously being developed to identify who among you would most probably be successful in the pursuit of careers in science and technology in line with the objectives of the country’s scientific human resource development plans. Taking this examination can be a time of great stress and anxiety for students like you. This is specially true if you do not know what to expect or if you are unfamiliar with the type of test items you will have to answer. This is why this Primer was prepared — to familiarize you with the nature of the examination and the type of items it contains. First, let us look at the basic make-up of the examination. It is primarily a multiple-choice type of test consisting of sub-parts which are separately timed. If you finish one part before the end of the allotted time, you will not be allowed to proceed to the next part nor go back to answer the previous test. You can use your time wisely by reviewing your answers for that particular part. The actual examination will last for approximately four and a half hours including the reading of instructions and filling- out of forms. It is designed to be taken in one sitting. Bring snacks. You may eat your snacks while taking the test but make sure not to smear any of the test materials. You may also be allowed to go to the comfort room upon seeking permission from the Examiner.

Following are the different parts of the scholarship examination: Part I : Verbal and Non-Verbal Reasoning Part II : English, Science, Mathematics, and Mechanical-Technical Part III: Self-Inventory The examination consists of multiple-choice items with four answer choices, only one of which is correct. You will indicate your answer by shading the circle in the answer sheet that corresponds to the letter of your choice. Part I Test consists of two sub-parts: Verbal Reasoning and Non-Verbal Reasoning. For this part, what would matter most is your mental alertness, precision, and accuracy of your thoughts and actions. Part II Test has relatively difficult test items because they require you to do mental computation or critical analysis before arriving to a probable answer. Since you would be actually taking sub-tests for this part, you are advised to manage your time well. Do not spend too much time on any particular item that you find difficult. Answer all the items you know first while skipping the more difficult ones. Then if you still have extra time, you may go back to the items you have previously skipped for that particular part only. Part III Test does not have right or wrong answers; you will encounter test items asking you to describe yourself, your family, your peers and schoolmates, and your past education and other activities as honestly and as accurately as you can. Some examinees in the past were not serious with their answers in Part III. You are well advised to answer this part seriously and honestly because it is still a vital part of the test. For the following sections of this Primer, you will have the chance to take a closer look at the components of the Examination and answer sample test items to better prepare you for what you will encounter on the actual examination.

NON-VERBAL REASONING

In this test you will be performing tasks that will measure your abilities to: visualize and transform images in your mind; recreate visual experiences and reasoning about shape, measurement, depiction and navigation; and mentally rotate and manipulate two and three dimensional spaces.

1. What shape is needed to complete the series below? A. C. B. D.
2. If a piece of paper containing two circular holes as shown is folded along the dashed lines, which of the following is the resulting figure? A. C. B. D. Sample Test Items

3. Which of the four figures below will show when all the given parts are fitted together? A. C. B. D.
4. Which of the following is a rotation of the solid? A. C. B. D.

For item nos. 5-8, read the passage below and choose the best answer for each item. The koala bear, a marsupial commonly found in Australia, is endangered. Often mistaken as bears, they are, in fact, associated to wombats. Their newborns stay in their mothers’ pouches for several months after birth. Koala bears live on gum trees known as eucalyptus. Being a nocturnal animal, koala bears usually rest during the day and become active only at night. Koala bears are soft. They have thick, woolly, grey or brown fur. Their fur keeps them warm during the cold season. On their limbs are rough pads, enabling the koala bears to grip the branches of the eucalyptus. Koala bears are herbivores. They feed on the gum leaves. Having a keen sense of smell, they are able to differentiate between edible and poisonous gum leaves. Source: ELITE Level 4. First Edition 2011. SAP PTE Ltd.

5. ____________ belong to the group of mammals known as marsupials. A. Koala bears and eucalyptus B. Wombats and koala bears C. Bears and koala bears D. Wombats and bears
6. The word that has the same meaning as “active at night” is “__________”. A. endangered C. nocturnal B. herbivores D. keen
7. The __________ keeps the koala bears warm during the cold season. A. pouch C. gum leaf B. thick fur D. rough pad
8. The koala bears use their __________ to tell the non-poisonous leaves from the poisonous ones. A. thick fur C. ability to smell B. ability to see D. body resistance

SCIENCE

This subtest consists of problem-items in Earth and Environmental Sciences, Biology, Chemistry, and Physics that will test your ability in accomplishing various important scientific tasks.

1. Legumes can be important for agricultural production because bacteria in root nodules fix nitrogen that can then be used by the plant. Which of the following four crop rotation programs would be MOST DESIRABLE to increase soil fertility? Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Corn Munggo beans Corn Munggo beans Corn Munggo beans A. Corn Munggo beans Corn Tomato Corn Tomato B. Rice Munggo beans Munggo beans Corn Corn Munggo beans C. Munggo beans Corn Munggo beans Munggo beans Corn Munggo beans D.
2. What should be the final temperature of a 25.0 L sample of hydrogen gas at 1.00 atm and 35°C if it is compressed to a volume of 20.0 L and a pressure of 2.00 atm? A. 164 °C B. 220 °C C. 330 °C D. 493 °C
3. Consider the projectile shown in the figure below. Ignoring air resistance, which of the following statements is CORRECT? y (^) w p A. Velocity at point Z is zero B. Acceleration at point Z is zero C. Speed at point X is equal to the speed at point P D. Velocity at point Y is equal to the velocity at point W Sample Test Items

MECHANICAL-TECHNICAL

In this sub-test, you will be performing tasks that will measure your ability to acquire information about everyday physics and to comprehend mechanical relationships. It consists of mechanical and electrical problems, as well as items that deal with physical forces.

2. In how many points do the graphs of 2(x + 1) 2 + (y - 2) 2 = 25 and 4(x + 1) 2

• 3(y - 2) 2 = 15 intersect? A. 1 B. 2 C. 3 D. 4

3. Consider the figure below. Arc CD measures (x – 3)°, while arc AB

measures (3x + 11)°, what is the measure of ‘CMD?

B M A C D A. 4x + 8 B. 2x + 4 C. x + 1 D. 2x + 14

4. Two chips are drawn simultaneously from an urn containing 10 chips numbered from 1 to 10. What is the probability that one of the numbers on the chips is even, and the other is odd? A. 2/9 B. 4/9 C. 5/9 D. 5/
5. If you are carrying this glass of softdrink while riding a bus accelerating in the direction of the arrow, which of the following BEST represents the shape of cross-section of the water surface in the glass? A. B. C. D. Sample Test Items

I II III

I. Bulb Z will be darker than before II. Bulb Z will be brighter than before III. Bulbs W and X will be darker than before IV. Bulbs W and X will be brighter than before

SELF-INVENTORY

This consists of short statements which you are asked to evaluate or describe yourself. In describing yourself, you are to determine the extent to which each statement closely approximates the way you think, act, and feel. For every statement, you have to choose only one from 5 possible responses below: Not true of me Rarely true of me Sometimes true of me Often true of me Very often true of me

2. Which of the kites illustrated below will fly the highest in the shortest possible time? A. I B. II C. III D. There is no difference among I, II, and III
3. Four identical bulbs, W, X, Y, and Z as shown below are initially operating with equal brightness. If bulb Y is busted, which of the following are TRUE? A. I and III B. I and IV C. II and III D. II and IV

Department of Science and Technology SCIENCE EDUCATION INSTITUTE 1st and 2nd Levels, Science Heritage Bldg., DOST Compound, General Santos Ave., Bicutan, Taguig City Contact nos. (02) 839-0083, (02) 837-1333, 837- 2071 loc. 2382 www.sei.dost.gov.ph IMPORTANT: This PRIMER is given free of charge by DOST-SEI and should NOT BE SOLD