Organisation : International Olympiad Academy
Exam : International Science Olympiad
Document Type : Sample Paper
Class : Grade 7
Year : 2019
Website : https://www.internationalolympiadacademy.com/
IOA Science Olympiad Sample Paper
International Science Olympiad Grade 7 Sample Papers 2019
Related / Similar Question Paper : IOA Science Olympiad Grade 8 Sample Paper 2019
Science Olympiad Grade 7 Sample Paper
1. Small intestine receives _______________ to digest carbohydrate, fats and proteins.
(A) Secretions from liver and pancreas
(B) Secretions from bile duct and saliva
(C) Secretions from saliva and gall bladder
(D) Secretions from small intestine and liver
2. One of the features which does not hold true for saprophytic plants is that
(A) They are green in colour
(B) These plants are commonly seen during rain
(C) Yeast shows saprophytic mode of nutrition
(D) These plants cannot synthesize their own food
3. When we breathe in air, we breathe in other gases also which are not required by our body. How does the body deals with these gases?
(A) These gases are exhaled out instantly, letting in only the useful gases
(B) These gases are filtered by tiny hairs present in nose
(C) These gases are not absorbed by lungs and it exhale them out
(D) These gases are converted into oxygen by lungs
4. What could W represent in the above flowchart?
(A) Xylem
(B) Phloem
(C) Root hair
(D) Stomata
5. What is true about a cucumber flower?
(A) Neither filament nor stigma
(B) Neither anther nor stigma
(C) Either male or female reproductive parts
(D) Both male and female reproductive parts
6. Which of the following is not one of the applications of plane mirrors?
(A) Real view mirror of a car
(B) Periscopes
(C) As decorative purpose to make a room appear bigger
(D) Blind corner mirror
7. Two rods P and Q are placed in boiling water and lying on the table respectively. Rod P does not feel hot but rod Q feels cool when touched. Rods P and Q are made of _______________ material.
(A) Metal and plastic respectively
(B) Glass and ceramic respectively
(C) Glass and plastic respectively
(D) Glass and metal respectively
8. The inner and outer surface of the flask is coated with plastic and steel. Why heat does not appear at the outer surface of the flask. Is flask containing hot liquid?
(A) Due to conduction between inner and outer surface
(B) Due to insulation between inner and outer surface
(C) Due to radiation between inner and outer surface
(D) Due to convection between inner and outer surface
9. When the moon comes in between the sun and the earth in a straight line, then a solar eclipse is formed. This formation of a solar eclipse is based on the concept of the ____ .
(A) Formation of a shadow of the earth on the moon
(B) Formation of a shadow of the moon on the earth
(C) Reflection of light by the earth
(D) Reflection of light by the moon
10. The pain because of the sting of an ant can be reduced by rubbing moist baking soda. This is because
(A) Sting of the ants contain formic acid which is neutralised by base that is moist baking soda
(B) Sting of the ants contain acetic acid which is neutralised by base that is moist baking soda
(C) Sting of the ants contain magnesium hydroxide which is neutralised by base that is moist baking soda
(D) Sting of the ants contain calcium carbonate which is neutraliesed by base that is moist baking soda
11. What is the use of cooking oil in frying a sausage in terms of heat transfer?
(A) To increase rate of heat transfer to the sausage via radiation
(B) To increase rate of heat transfer to the sausage via convection
(C) To increase rate of heat transfer to the sausage via conduction
(D) To increase rate of heat transfer to the sausage via evaporation
12 .Why crystallization is a better technique than evaporation for recovering sugar from sugar solution?
(A) Some solids like sugar decompose or get charred on heating during evaporation
(B) Some solids like sugar associates together on heating during evaporation
(C) Some solids like sugar disappear on heating during evaporation
(D) All of the above
13 .Why lightning rods are made from copper?
(A) Because copper rods conduct electricity but does not rust easily
(B) Because copper rods does not conduct electricity and does not rust
(C) Become copper rods conduct electricity and has a low density
(D) Become copper rods does conduct electricity and has a low density
14. What are the safety measures taken by the authorities to minimize the damage by cyclones in coastal areas?
(A) Cyclone forecast and warning service with slow communication of warnings
(B) Destruction of cyclone shelters in cyclone prone areas
(C) Arrangements to move people to safer places with slow pace
(D) Cyclone forecast and warning service with rapid communication of warnings, arrangements to move people fast to safer place
15. The volume of water during solidification
(A) Decreases on decreasing the temperature
(B) Increases on decreasing the temperature
(C) Increases on increasing the temperature
(D) Remains same
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