Important CTET Science Questions and Answers with Explanation

Central Board of Secondary Education (CBSE) have announced the date of the CTET exam i.e. 14th December 2024. Although the date of release of the CTET admit card 2024 is still not clear, the candidates would be putting their best efforts into preparation. Practising Adda247’s important CTET Science Questions and Answers can significantly improve aspirants’ chances of success.

CTET exam assesses candidates’ ability to be appointed as teachers for primary classes (I to V) and for upper-primary classes (VI to VIII). The candidates have to clear papers for classes. Science is a significant subject and holds an important role in clearing the exams. Concerning this, we have prepared a list of important PSTET Science Questions and Answers to practice with.

CTET Science Section: Overview

The CTET 2024 Exam, conducted by CBSE, will take place in offline mode. Aspiring candidates aiming to pursue teaching careers in government schools across India have to appear for the CTET 2024. To prepare effectively, candidates can utilize practice materials like CTET Science Questions and Answers available on platforms such as Adda247. For more information about the Science section, look into the table below.

CTET Science Questions

Q1. Why is cellulose-rich food a source of roughage in human beings?
(a) Cellulose gets absorbed in human blood.
(b) Cellulose is digested and egested as roughage.
(c) Human beings do not have cellulose-digesting enzymes.
(d) Cellulose is converted into fibres by cellulose-digesting bacteria.

Q2. Two metal balls X and Y of the same volume and with greater density than water are fully submerged in two identical glasses A and B. The Mass of X is 3 times that of Y. In which of the two glasses will the level of water be greater?
(a) Level of water will be greater in A.
(b) Level of water will be same in both A and B.
(c) Level of water will be greater in B.
(d) Level of water does not depend on density of balls.

Q3. The electronic configuration of 3 elements X, Y and Z are :
X=2, 4
Y=2, 7
Z=2, 1
Which of the following compounds can be formed?

Q4. Read the statements below and choose the correct option :

Q5. Match the following in the context of Sewage.
Column-A Column-B
(A) Bacterial infections (I) Nitrates
(B) Inorganic impurities (II) Phosphorus
(C) Organic impurities (III) Cholera
(D) Nutrients (IV) Pesticides
(V) Measles
(a) A-III, B-I, C-IV, D-II
(b) A-V, B-II, C-I, D-III
(c) A-III, B-IV, C-I, D-II
(d) A-V, B-IV, C-II, D-III

Q6. Fill in the blanks with appropriate words:
(A) have thin walls and (B) have thick elastic walls. Blood flows at high pressure in (C).
Valves are present in (D) that help the blood to flow only in one direction.
(a) (a)-Arteries, (b)-Veins, (c)- Arteries, (d)-Veins
(b) (a)-Veins, (b)-Arteries, (c)- Veins, (d)-Arteries
(c) (a)-Veins, (b)-Arteries, (c)- Arteries, (d)-Arteries
(d) (a)-Veins, (b)-Arteries, (c)- Arteries, (d)-Veins

Q7. Which of the materials could be used as a fuse?

(a) (A)
(b) (B)
(c) (B) and (C)
(d) (C)

Q8. Four test tubes are taken:
Test-tube A contains aqueous solution of milk.
Test-tube B contains aqueous solution of glucose.
Test-tube C contains aqueous solution of calamine.
Test-tube D contains aqueous solution of amla (gooseberry).
What colour is expected when a piece of red litmus paper is dropped in each test tube?
(a) A-Blue, B-Blue, C-Red, D-Red
(b) A-Blue, B-Blue, C-Red, D-Blue
(c) A-Red, B-Red, C-Blue, D-Red
(d) A-Red, B-Blue, C-Blue, D-Red

Q9. Which of the following is NOT an application of chemical effects of electric current?
(a) electrolysis
(b) electroplating
(c) electromagnetism
(d) galvanization

Q10. Which of the following scientific concepts can be illustrated through a periscope?
(a) Multiple reflections of light
(b) Refraction of sound
(c) Refraction of light
(d) Total Internal Reflection

Q11. In a laboratory, in which zone of flame should Anita hold the test tube to boil water quickly?
(a) Black zone
(b) Yellow zone
(c) Blue zone
(d) Either blue zone or yellow zone

Q12. Solutions of which of the following do not show acidic character?
(A) Curd
(B) Glucose
(C) Alcohol
(D) Amino Acid
(a) (A) and (B)
(b) (B) and (C)
(c) (C) and (D)
(d) (D) and (A)

Q13. Steps for the production of silk are given below. Arrange them in the correct sequence:
(A) Cocoons are kept under the sun or boiled in water.
(B) Female silk moths lay eggs.
(C) The larvae or silkworms are kept in clean trays along with fresh mulberry leaves.
(D) Eggs are warmed to a suitable temperature for larvae to hatch.
(E) After 25-30 days, caterpillars stop eating and start spinning cocoons.
(F) Fibers are taken out from cocoons.

(a) (B)→(C) → (E) → (D) → (A) → (F)
(b) (B) → (C) →(D) →(A) → (E) → (F)
(c) (B) → (A) → (D) → (C) → (B)→ (F)
(d) (B) → (D) → (C) → (E) → (A) → (F)

Q14. ‘Cud’ is the term given to the food of ruminants which is:
(a) properly chewed and completely digested
(b) properly chewed and partially digested
(c) swallowed and partially digested
(d) swallowed and indigested

Q15. You are provided with 4 solutions – baking soda solution, salt solution, curd and sugar. Which of the following would you use to find the nature (acidic/basic/neutral) of each solution?
(a) Methyl orange
(b) China rose
(c) Phenolphthalein
(d) Both (a) and (b)

CTET Science Answers

S1. Ans.(c)
S2. Ans.(b)
S3. Ans.(d)
S4. Ans.(a)
S5. Ans.(a)
S6. Ans.(d)
S7. Ans.(d)
S8. Ans.(c)
S9. Ans.(c)
S10. Ans.(a)
S11. Ans.(c)
S12. Ans.(b)
S13. Ans.(d)
S14. Ans.(c)
S15. Ans.(a)

Download Science Questions and Answers PDF

Candidates preparing for the CTET exam should have the practice and study material readily available so that they can put their efforts into practice. Hence, find the direct link to download the CTET science questions and answers PDF that comprises 30 questions and answers with explanations.

CTET Science Questions and Answers PDF

Sharing is caring!