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
Ron placed an object at a distance 2 m from a plane mirror. He then shifted the object 0.5 m away from the mirror. What is the distance between the object and its image?
Q.2
What happens when an impure copper rod is taken as the anode and the pure copper rod is taken as the cathode in an electrolysis experiment?
Q.3
Choose the correct option and complete the following sentence:
A lightning conductor installed in a building ________________.
Q.4
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.5
Susan was walking on ice, her mother advised her to take smaller steps to avoid slipping. Which of the following could be the reason for the smaller steps?
Q.6
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.7
Consider the following statements and choose the correct option:
Statement 1: Jack observed a species of single-celled organisms in a laboratory that reproduce by dividing into two daughter cells, each genetically identical to the parent. This type of reproduction is called budding.
Statement 2: Mark observed a type of asexual reproduction in yeast cells, where a smaller cell grows off the surface of a larger cell and eventually separates. This type of reproduction is called regeneration.
Q.8
Read the following statements and choose the correct option:
Statement 1: The antibiotic penicillin inhibits the growth of bacteria by blocking the process which helps to build its cell membrane.
Statement 2: The cell membrane is selectively permeable because it allows the movement of certain molecules in and out of the cell while the movement of other molecules is prevented.
Q.9
In the given question, an assertion and reason are given. Choose the correct option:
Assertion: Animals like camels walk easily in deserts as broad feet exert less pressure on sandy ground.
Reason: Pressure decreases with an increase in surface area.
Q.10
A force of 16 N is distributed uniformly on one surface of a cube of edge 4 m. Find the pressure on this surface:
Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1
c
Q.2
b
Q.3
d
Q.4
a
Q.5
c
Q.6
a
Q.7
d
Q.8
b
Q.9
a
Q.10
a
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 : c | Q.2 : b | Q.3 : d | Q.4 : a | Q.5 : c | Q.6 : a | Q.7 : d | Q.8 : b | Q.9 : a | Q.10 : a
