Name of the Organization : SAASTA – South African Agency for Science & Technology Advancement
Examination Name : Natural Science Olympiad Exam
Announcement : Natural Science Olympiad Exam Question Paper 2017
Grade : 7 To 9
Year : 2017
Type : Past Papers
Website : http://www.saasta.ac.za/competitions/natural-science-olympiad/
Download Question Paper : https://www.southafricain.com/uploads/9748-NSO7-9.pdf
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SAASTA Natural Science Olympiad Exam Question Paper
Date : 11 MAY 2017
Time : 09:00 – 12:00
** Three hours are allowed to answer the questions
Related : SAASTA Natural Science Olympiad Exam Grade 4 to 6 Question Paper 2017 : www.southafricain.com/9738.html
** Please read the instructions carefully before answering the questions
** This is a multiple choice paper. Please answer all the questions on the answer sheet provided. Each question is followed by answers marked A, B, C, and D. Only one answer is correct. Choose the most correct answer and shade the corresponding circle on the answer sheet completely, using an HB pencil.
** NB! The answer sheets are marked electronically – do not make any other dots or marks on the answer sheet. Select only one answer for each question or your answer will be discarded. Ensure that you shade your selection clearly.
** Note that the question numbers 1 to 100 on the answer sheet moves from top to bottom in several columns.
** Ensure that the number of your selection on the answer sheet corresponds with the number of the question in your examination paper. Should you make a mistake, please erase the incorrect answer completely.
** The use of non-programmable electronic calculators is permitted.
** To Avoid Disqualification – You are required to complete all the information requested on the answer sheet.
** Please complete the information in script as well as shade the corresponding blocks. If the corresponding blocks are not shaded appropriately, your results will be returned without a name and you will be disqualified.
** The student number allocated to you can be obtained from your teacher and consists of eight digits e.g. 08149701
** Do not fold the answer sheets.
Grade 7 to 9 Sample Questions
1. Bees must collect nectar from flowers in order to make honeycomb. Approximately how many flowers must they (bees) collect to make 0.453 kg (one pound) of honeycomb?
A 2 million
D 20 million
2. A dog’s sweat glands are located around its …
A …nose and ears.
B …paws and eyes.
C …nose and paws.
D …ears and paws.
3. Up until World War II, chewing gum was made from …
D …the bark of a gum tree.
4. The social groups which lions form are called …
5. Which of the following insects cannot be described as “social insects”?
6. What body function are rats unable to fulfill which makes them extra vulnerable to poisoning?
C Release tears
7. Which of the following animals will last the longest without drinking water?
B Kangaroo Rats
8. What is the heart rate of a hummingbird?
A Exactly 20 beats per minute
B At most 72 beats per minute
C More than 1 200 beats per minute
D None of the above
9. Name the type of camel that has two humps.
A The Dromedary camel
B The Bactrian camel
C The Desert camel
D None of the above
10. What do we call a person having more than 5 fingers per hand or 5 toes per foot?
11. In daylight, the human eye is most sensitive to …. light
12. Which layer of the earth’s atmosphere contains the ozone layer?
13. The large dark areas of the moon known as mares are easily visible from Earth. Which of the following statements best explains the presence of these dark areas?
A Massive volcanic eruptions emptied underlying magma caverns, causing their collapse and the formation of calderas.
B Shortly after the formation of the moon, Earth’s strong gravitational pull on the moon caused the release of magma from fissures in the crust.
C Large meteorites excavated huge craters that filled with low-viscosity basalt flowing from the fractures created in the underlying crust.
D When the moon was still semi-molten, these areas of crust collapsed due to tectonic activity, creating low areas that trapped sediments.
14. Which one of the following stars is situated closest to the Sun?
B Alpha Centauri
D All three stars mentioned above are situated at the same distances away from the Sun.
15. Which of the following physical characteristics of a main-sequence star is the most important factor in determining its luminosity?
A Chemical composition
B Strength of the magnetic field
C Total mass
D Size of the corona
16. How often does Haley’s comet appear in Earth’s night sky?
A Every 48 years
B Every 100 years
C Every 30 years
D Every 76 years
17. What colour is planet Mercury?
18. What is the name of the smallest planet with regards to both mass and volume in our Solar System?
19. How long does it take light from the nearest star excluding the light from the sun to reach the Earth?
A Less than one second
B 1 hour
C 4.2 years
D 1.2 years
20. Which one of the following planets is named after a Greek god?
21. Which planet in our solar system spins backward on its axis relative to the other planets in our solar system?
22. When did John Glenn use the space capsule “Friendship 7”, to first orbit the Earth?
23. What is planet Jupiter famous for?
A It’s a big hole.
B It’s big red spot.
C It’s big black spot.
D It’s coloured spots.
24. Which planet in our solar system is famous for the beautiful rings surrounding it?
25. Who was the first man to hit a golf ball on the moon?
A Alan Shepard
B Tiger Woods
C Gerald Golf
D Golf Moon