Section 1: Crop Production and Management, Microorganisms, Synthetic Fibres and Plastics, Metals and Non-metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell, Reproduction and Endocrine System, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
Which of the following is correct definition of ignition temperature?
Q.2
James noticed that a flame produced by burning wood is orange-yellow, while a Bunsen burner flame is blue. What is the primary reason for this difference in flame color?
Q.3
Different microorganisms taking part in the nitrogen cycle are: (i) Rhizobium in roots (ii) Ammonifying bacteria (iii) Nitrifying bacteria (iv) Denitrifying bacteria Which of them strictly work under anaerobic conditions?
Q.4
Consider the following statements and choose the correct option:
Statement 1: The ignition temperature of white phosphorus is nearly equivalent to the temperature of the earth.
Statement 2: Combustion of fuel by motor vehicles is an example of spontaneous combustion.
Q.5
A plastic comb is rubbed with dry hair whereas a glass rod is rubbed with a piece of silk cloth. Which of these will get positively charged?
A. Plastic comb B. Glass rod C. Dry hair D. Silk cloth
Q.6
In the following question, an assertion and reason are given. Choose the correct option:
Assertion: Fungi are a large group of organisms which do not photosynthesise. Reason: All fungi are generally made up of fine threads called hyphae.
Q.7
Why is just one side of the Moon visible from Earth?
Q.8
Four classmates were having a discussion about the correct way for sowing seeds. This is what they said:
Richard: Seeds should be sown at right intervals.
Susan: Seeds should be sown at the right depth.
David: Seeds should be sown in dry soil.
Jacob: Seeds should not be sown in highly wet soil.
Which of them was/were incorrect?
Q.9
Fill in the blank:
Equal force F acts on isolated bodies A and B as shown. The mass of B is three times that of A. The magnitude of the acceleration of A is ___________.
Q.10
Fill in the blank:
For showing the full image of an object, the size of the plane mirror should be at least ____________.
Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1
b
Q.2
b
Q.3
a
Q.4
d
Q.5
b
Q.6
b
Q.7
b
Q.8
b
Q.9
a
Q.10
b
Are you a student who is participating this time in the CREST Science Olympiad? Science Olympiad previous years’ question papers for class 8 is one of the best ways to summarise your months of Olympiad exam preparation. Students can use these sample papers to assess what they've studied for the exam. It acts as a mirror, reflecting candidates' weak and strong points. Students can download the Science Olympiad sample papers for class 8 for free on this page. Get a hold of these.
Science Olympiad questions have numerous advantages. It gives an indication of the types of questions that will be asked in the actual exam. Always remember to include sample papers practice in your Olympiad exam preparation guide.
Answers to Sample Questions from CREST Olympiads:
Q.1 : b | Q.2 : b | Q.3 : a | Q.4 : d | Q.5 : b | Q.6 : b | Q.7 : b | Q.8 : b | Q.9 : a | Q.10 : b
