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
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?
Q.2
Select the correct statement(s): 1. Manures and fertilizers are added to increase the fertility of the soil. 2. Sun is the ultimate source of energy for all living organisms. 3. Cells of the pitcher of Nepenthes plant secrete digestive juices to digest the insect.
Q.3
A walker follows the path from A and E (figure) over an 80 s time interval. What total distance does the walker cover between A and E?
Q.4
Study the given experimental set up. What will happen to the drop of fluid in the capillary tube over the next few hours?
Q.5
Look at the figure given below and answer the following question: What are the labelled parts called in an yeast? (plural form)
Q.6
Which of the following is not an application of heat?
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
Fill in the blanks: 1. Angle between _________ and _________ is called as the angle of reflection. 2. Angle of incidence is always _______ angle of reflection.
Q.9
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.10
Physical changes are temporary and can be easily reversed to their previous form. Which of the following physical changes is not a reversible change?
Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1
c
Q.2
d
Q.3
a
Q.4
c
Q.5
b
Q.6
d
Q.7
a
Q.8
b
Q.9
a
Q.10
a
Answers to Sample Questions from CREST Olympiads:
Q.1 : c | Q.2 : d | Q.3 : a | Q.4 : c | Q.5 : b | Q.6 : d | Q.7 : a | Q.8 : b | Q.9 : a | Q.10 : a
