This document appears to be a practice test for the Central Teacher Eligibility Test (CTET) in Science. It contains 30 multiple choice questions testing various concepts in science. The questions cover topics such as chemical processes, living organisms, products of combustion reactions, assessment approaches in science education, units of measurement, and fibers and fabrics.

1. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
CTET SCIENCE Previous Paper 4
1. Given below are a few chemical processes
A. Rusting of iron
B. Burning of a candle
C. Respiration
D. Photosynthesis
Which two of these represent slow combustion?
(a) A and C
(b) D and A
(c) B and C
(d) B and D
2. The smallest of livingorganisms with cell wall are
(a) Bacteria
(b) Yeast
(c) Algae
(d) Cyanobacteria
3. When CNG or LPG undergoes complete combustion, the products formed are
(a) CO2 and H2O
(b) 2 2 2 CO , SO andH O
(c) 2 CO only
(d) 2 2 CO ,COandH O
4. Assessment in Science should focus more on testing the abilityof students to
(a) Apply the understanding of concepts to unfamiliar situations in everyday life
(b) Answer open-ended questions
(c) Be sufficientlyequippedfor higher learning
(d) State the facts and principles of Science Correctly
5. The SI unit of calorific value is
(a) kJ/kg
(b) J/kg
(c) Kilocalorie/kg
(d) calorie

2. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
6. The process of converting sugars into alcohols is known as
(a) fermentation
(b) pasteurization
(c) sterilization
(d) homogenization
7. One of the main limitationsof the Project method of teaching Science is that
(a) the students have no perform excessive metal and physical work
(b) knowledge is not acquired in a sequential manner
(c) integration of concept in various subjects can be achieved
(d) it is a psychological method
8. Summative Assessment in Science should mainly focus on
(a) Diagnosing the areas of learning difficultiesof students
(b) Assessing observation skills
(c) Testing of mainly the practical skills
(d) Testing important theoretical concepts
9. The dietary fibres are
(a) Also called roughage
(b) Made up of collagen fibres
(c) Made up of proteins
(d) Made up of cellulose and proteins
10. If the frequency of vibrations of a body is decreased and its amplitude is increased, then
(a) Pitch decreases by loudness increases
(b) Pitch increase but loudness decreases
(c) Both pitch and loudness of sound produced will decrease
(d) Both pitch and loudnessof sound produced will increase
11. Which one of the followingman-made fibres is also called artificial silk?
(a) Rayon
(b) Acrylic
(c) Polyester
(d) Nylon

3. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
12. Constructivist approach in teaching of Science refers to
(a) Providing experiential learning to students
(b) Providing more and more reading material to students
(c) Providing additional academic help to weak students
(d) Applying differentmathematical formulae in solving problem
13. The gas which forms carboxy-haemoglobin in the blood, causing suffocation is
(a) Carbon monoxide
(b) Nitrogen
(c) Carbon dioxide
(d) Chlorofluorocarbon
14. Which of the followingstatements related to earthquakes is not correct?
(a) The seismograph records the seismogram
(b) The record of the seismic waves is called seismograph
(c) The Richter Scale is not linear by logarithmic
(d) The seismic waves originate from focus
15. Which one of the followingis the key feature of Formative Assessment in Science?
(a) It is diagnostic in nature
(b) It is aimed at developing scientifictemper in the students
(c) It is aimed at enhancing practical skills
(d) It is conducted at the end of the year
16. Project method in teaching of Science is suited most to
(a) Promote scientific method of working
(b) Strengthen reasoning skill of students
(c) Promote understanding of basic concepts in Science
(d) Enhance numerical abilitiesof students
17. The followingobservations were made by students A, B, C and D when they rubbed solidbaking
soda on dry litmus paper
Student Effect on dry red
litmus paper
Effect on dry blue

4. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
litmus paper
A Colour changed to
blue
No change
B No change Colour changed to red
C Colour changed to
blue
Colour changed to red
D No change No change
The correct observation was made by the student
(a) A
(b) C
(c) D
(d) B
18. Practical work in Science may be given due emphasis in order to
(a) Help the student verify the theoretical concepts
(b) Keep proper check on punctuality and regularity of students
(c) Improve the percentage of marks obtained by the students
(d) Help the students developthe habit of maintaining
19. Which one of the followingis the major objective of teaching of Science at upper primary stage?
(a) To promote rational thinking
(b) To learn important facts and formulae
(c) To develop proficiency in solving exercisesgiven at the end of the chapter
(d) To remember names of scientistsand scientific discoveries
20. Antibiotics are effective against
(a) Cholera
(b) Influenza
(c) Hepatitis A
(d) Dengue fever
21. PET bottles and jars are commonly used for storing edible items.PET is very familiar form of
(a) Polyester
(b) Rayon

5. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
(c) Polyamide
(d) Acrylic
22. When electric current is passed through a metallic conductor, amount of heat produced in the
conductor depends on its
(a) Material, length and thickness
(b) Material and thickness
(c) Material and length
(d) Length and thickness
23. The minerals that are required in the right amount for proper functioning of muscles are
(a) Iron and calcium
(b) Iodine and fluorine
(c) Iron and iodine
(d) Sodium and potassium
24. The gases present in atmosphere that cause greenhouse effect are
(a) Methane, water vapour, carbon dioxide
(b) Carbon dioxide,oxygen, nitrogen
(c) Carbon dioxide,Sulphur dioxide,methane
(d) Nitrous oxide, oxygen,water vapour
25. When carbon dioxide is passed through clear lime water solution, it turns milky.The milky
appearance of lime water is due to
(a) Presence of insoluble calcium carbonate
(b) Presence of soluble calcium carbonate
(c) Curdling of milk due to lime in lime water
(d) Presence of impurities in lime water
26. In order to determine acidic, basic or neutral character of solutions,a student tabulated the
followingresults after experimentation.Which of the followingobservation has been tabulated
correctly?
Case Test solution Colour change on
red litmuspaper
Colour change on
blue litmus paper

6. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
Acidic/Basic
/Neutral
A NaCl No change red Acidic
B Lime water Blue No change Neutral
C Vinegar No change No change Neutral
D Washing soda blue No change Basic
(a) D
(b) C
(c) A
(d) B
27. Which one of the followingis most suited to the developmentof scientificskillsin students?
(a) Performing laboratory work
(b) Conducting science Olympiad
(c) Conducting Science quiz
(d) Organizing a fieldvisit
28. A Science teacher is interestedto focus more on acquisition of process skillsby the learners.
Which of the followingcombination of methods of teaching should be preferred by her to achieve
the objectives?
(a) Project-cum-laboratory method
(b) Lecture-cum-demonstration method
(c) Assignment-cum-questioning method
(d) Lecture-cum-discussion method
29. Which of the followinggroup of words can be correctly identifiedwith Rhizobium?
(a) Nitrogen fixation,root nodules, leguminous plants
(b) Roots of legumes, parasite, soluble nitrogen compound
(c) Leguminous plants, symbiotic, stem nods
(d) Root nodules, pitcher plant, nitrogen deficient soil
30. A laboratory thermometer shows five small divisionsbetween the markings of 55° C and 56° C.
This means that the thermometer can read correctly up to
(a) 55.2° C
(b) 55.25° C

7. A-38, 39, 40, Opposite Metro Pillar no: 641,
Uttam Nagar, Near Uttam Nagar East Metro Station, New Delhi - 110059
(c) 55.1° C
(d) 55.5° C