Section 1: Heat, Motion and Time, Electric Current and its Effects, Winds, Storms and Cyclones, Light, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Fibre to Fabric, Nutrition in Plants and Animals, Respiration in Organisms, Transportation in Plants and Animals, Reproduction in Plants, Natural Resources and Their Conservation.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
Two non-parallel plane mirrors make an angle of 60o with each other. If a beam of light is incident on one mirror at an angle of 30o to the mirror surface, what is the angle between the incident and emerging rays after two reflections?
Q.2
Ron took two salts A and B in two test tubes I and II, respectively, and subjected them to heating. After that, he added water to the two test tubes, in test tube I salt regained its original colour and in test tube II water started boiling. Identify A and B:
Q.3
A motor car travels with a speed v1 from A to B and returns back from B to A with a speed v2. What is the average speed of the car during its journey?
Q.4
Fill in the blanks: The water which is lost through the stomata is replaced by water from the _______ vessels in the leaf. Evaporation of water molecules from leaf's cells creates a suction which pulls the water from the _______ cells of the root.
Q.5
Look at the pictures shown below and spot the similarity between them:
Q.6
Two children are standing in front of a plane mirror as shown. When the child A looks into the mirror, how far away from him will image of child B appear to be?
Q.7
What happens when a synthetic fiber like polyester is burned?
A. It melts and drips B. It produces a pleasant fragrance C. It produces a black, sooty smoke D. It ignites with a bright flame
Q.8
Complete the sentence: The change in the shape of a hot tin can containing water vapour, when cold water is poured on it is because _____________.
Q.9
Read the clues carefully and answer the question that follows: Clue 1: I live in tropical rainforests. Clue 2: I have a long and large beak. Clue 3: I can reach for fruits on branches which are not easily reachable. Who am I?
Q.10
Given below are some adaptations shown by animals: (i) Beautiful coloured feathers (ii) Long tail (iii) Thick fur (iv) Subcutaneous fat and thick skin (v) Poison glands (vi) Longer beaks (vii) Keen eyesight (viii) Smaller sized limbs and ears Which of the above adaptations are rainforest adaptations?
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Answers to Sample Questions from CREST Olympiads:
Q.1
b
Q.2
a
Q.3
c
Q.4
a
Q.5
b
Q.6
a
Q.7
a
Q.8
b
Q.9
c
Q.10
c
Answers to Sample Questions from CREST Olympiads:
Q.1 : b | Q.2 : a | Q.3 : c | Q.4 : a | Q.5 : b | Q.6 : a | Q.7 : a | Q.8 : b | Q.9 : c | Q.10 : c
