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
Given below are pictures of corn, papaya and cucumber. Identify the similarity between them correctly:
Q.2
Consider the following statements and choose the correct option: Statement 1: During a chemistry demonstration, the teacher combined hydrogen gas with oxygen gas to form water. This is an example of reversible physical change. Statement 2: Jack conducted an experiment where he mixed vinegar (acetic acid) and baking soda (sodium bicarbonate), resulting in fizzing and the formation of carbon dioxide gas. This is an example of irreversible physical change.
Q.3
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.4
Look at the figure given below and answer the following question: What are the labelled parts called in an yeast? (plural form)
Q.5
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.6
Look at the pictures of sealing wax, wooden statue and catechu and identify the similarity between them correctly:
Q.7
What is the similarity between quinine, sandalwood oil and eucalyptus oil?
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
Which of the following is not an application of heat?
Q.10
Kevin's teacher asked him to identify the correct order of the processes listed below to purify water and make it safe for drinking.
(i) Filtration
(ii) Sedimentation
(iii) Chlorination
(iv) Addition of chemicals
Which of the following is the correct order that Kevin arranged?
Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1
c
Q.2
d
Q.3
a
Q.4
b
Q.5
a
Q.6
a
Q.7
b
Q.8
b
Q.9
d
Q.10
c
Answers to Sample Questions from CREST Olympiads:
Q.1 : c | Q.2 : d | Q.3 : a | Q.4 : b | Q.5 : a | Q.6 : a | Q.7 : b | Q.8 : b | Q.9 : d | Q.10 : c
