Organisation : International Olympiad Academy
Exam : International Science Olympiad
Document Type : Sample Paper
Class : Grade 10
Year : 2019
Website : https://www.internationalolympiadacademy.com/
IOA Science Olympiad Sample Paper
International Science Olympiad Grade 10 Sample Papers 2019
Related / Similar Question Paper : IOA International Science Olympiad Grade 9 Sample Paper 2019
Science Olympiad Grade 10 Sample Paper
Foundation: (2 Points)
1. Which of the following statements is correct?
(A) Electrons are gained by oxidizing agent as it undergoes reduction
(B) Electrons are gained by oxidizing agent as it undergoes oxidation
(C) Electrons are gained by the reducing agent as it undergoes oxidation
(D) Electrons are gained by the reducing agent as it undergoes reduction
2. The magnetic field lines due to a straight wire carrying a current are
(A) Straight (B) circular (C) parabolic (D) elliptical
3. What is the word for the kind of animal that is active at dawn and dusk?
(A) Diurnal (B) Crepuscular (C) Nocturnal (D) Matutinal
4. Magnetic field strength due to a short bar magnet on its axial line at a distance x is B. What is its value at the same distance on the equatorial line?
(A) B/2 (B) B (C) 2 B (D) 4B
5. A zig- zag line separates the metals from non-metals almost in the middle of the modern periodic table. These elements placed borderline have properties like
I. The electro negativities are between those of the metals and nonmetals
II. Reactivity depends on properties of other elements in reaction
III. They often make good semiconductors
IV. Their ionization energies are between those of the metals and nonmetals
(A) I and II (B) II and III (C) I, II, III and IV (D) II and IV
6. In group VIII of Mendeleev’s periodic table, why does cobalt with atomic mass 58.93 appears before nickel having atomic mass 58.71?
I. Cobalt has the properties similar to rhodium
II. In order to group elements with similar properties together, cobalt was placed before nickel
III. Elements in this group was placed according to their electropositive character
(A) I, II and III (B) I and II (C) Only II (D) Only III
7. Coagulopathies are the conditions characterized by the inability of blood to clot. Identify the protein whose deficiency causes coagulopathies.
I. Albumin
II. Fibrinogen
III. Prothrombin
IV. Thrombokinase
(A) I and III (B) I, II, III, and IV (C) II, III and IV (D) III and IV
8. If a plant is showing the phenomenon of apical dominance, then the processes that can enhance growth of lateral buds is
(A) The removal of pith of the stem (B) Application of auxins at the root end
(C) The removal of all leaves from plant (D) Girdling of the stem
9. What is the function of sympathetic stimulation?
(A) It Inhibits heart beat
(B) It accelerates heart beat
(C) It performs both the above functions under different conditions
(D) It does neither of the above function
10. The pituitary gland is often described as “The Leader of Endocrine Orchestra” because it
I. Controls activities of all other endocrine organs in vertebrates
II. Controls activities of thyroid gland, gonads and adrenal cortex
III. Controls growth in vertebrates
IV. IS responsible for gigantism
(A) Only I (B) II and III (C) I and IV (D) Only II
Instructions
1. Please Do Not Open the contest booklet until the proctor has given permission to start.
2. There are 40 questions in this paper. 2 points, 3 points will be awarded for each correct question in Foundation, and Exploration respectively. 1 point will be deducted for each incorrect answer, and no penalty for skipping a question.
3. All questions are compulsory. There is only ONE correct answer to each question.
4. No electronic devices capable of storing and displaying visual information are allowed during the exam.
5. Use of calculator is strictly prohibited in the exam.
6. Fill your Name, Roll No., Grade and School Name in the answer sheet.
7. To mark your choice of answers by darkening the circles in the Answer Sheet, use an HB Pencil or a Blue/Black Ball Point Pen only.
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