CTET Science Paper 2 Mock Test Set 5

1. Which of the following organs is NOT found in birds?

2. Which of the following metals can displace the rest from their salt solutions?

3. Which of the following is BEST suited to be taught using a simulation software?

4. An object of mass 200 kg is sliding on a smooth horizontal frictionless surface with a constant velocity of 5m/s. The force required to keep the object moving with the same velocity is

5. Select from the following, a planet of solar system which has highly tilted rotational axis as a result of which in its orbital motion appears to roll on its side

6. When human beings inhale oxygen during respiration, which of the following movement movements does NOT takeplace?

7. Consider the following statements
A. In photosynthesis solar energy in converted into chemical energy.
B. In photosynthesis CO₂ and water are used.
C. In photosynthesis CO₂ is released and O₂ is consumed.
D. In photosynthesis O₂ is released and CO₂ is consumed.
E. Photosynthesis takes place both during day and night.
The correct statements are

8. Which of the following statement (s) is/are individually true in respect of both magnetic lines of force and rays of light?
A. They are theoretical constructs.
B. They are visual representations that help in understanding physical phenomena.

9. Which of the following conditions will be helpful in liquification of gases?

10. Match the mixture in Column-I with the method in Column-II that can be used to separate it.
          Column-I                    Column-Il
(A) Sawdust and water.      (i) Evaporation
(B) Iodine and sand.         (ii) Centrifugation
(C) Salt and water.           (iii) Filtration
(D) Cream from curd.       (iv) Sublimation

11.

Three identical sized blocks of lead, aluminium and zinc are submerged in water.
Given that, at room temperature:
Density of Aluminium = 2.7 g/cm³
Density of Lead = 11.29 g/cm³
Density of Zinc-7.13 g/cm³
How would the buoyant force on lead block (BF)lead buoyant force on aluminium block- (BF)alum and buoyant force on zinc block (BF)zinc compare with each other?

12. Identify the correct statement from the following:

13. Read the following statements and select the correct option.
Assertion (A) :Tap water is a good conductor of electricity.
Reasoning (R) : Tap water contains impurities in the

14. Which of the following is a pair of modified roots of a plant?

15. A magnet is cut into four equal parts length wise. How will the pole strength of the new pieces compare with the pole strength of the original magnet?

16. A girl cycles at a speed of 12 km/h to her friend's house situated at a distance of 10 km from house, She returns at a speed of 18 km/h. What is her average speed during the entire trip ?

17. A 14 year old complains of constant fatigue and dizziness. A Blood test reveals her haemoglobin to be 10.0 g/de. Enhancing / including the intake of which of the following food items will be helpful to her ?

18. Which of the following are the correct reasons for water not being used as a thermometric liquid?
(A): It is transparent.
(B): It has a high coefficient of expansion.
(C): It has a higher freezing point and a lower boiling point as compared to other liquids.

19. Match the process in Column-I with its description in Column-II.
        Column-I                                        Column-II
(A) Pasteurisation                     (i) Adding specific substances to food items to prevent its spoilage
(B) Fermentation                      (ii) Boiling and sudden cooling of milk to prevent the growth of bacteria
(C) Vaccination                        (iii) Conversion of sugar into alcohol by the action of yeast
(D) Preservative.                     (iv) Introducing inactive or weakened disease causing micro-organism into an animal's body to trigger its immunity response

20. Read the following paragraph
In 1822, a man named Alexis St. Martin was badly hit by a shot - gun. The bullet had seriously damaged the chest wall and made a hole in his stomach.
He was brought to an American army doctor William Beaumont who saved the patient but could not close the hole properly and left it bandaged. He used this as opportunity to see the inside of the stomach to some gain an understanding about the process of digestion?
Which of the following understanding (s) about development of scientific knowledge is conveyed in this paragraph
A. Science proceeds systematically according to pre-determined steps
B. Science requires careful observation and creative response to situations

21. It is observed that a Copper vessel gets corroded in rainy season to give

22. Consider the following statements and choose the correct option.
A) Measles is caused by Bacteria
B) Malaria is caused by Plasmodium
C) Typhoid is caused by Bacteria
D) Leprosy is caused by Virus

23. According to the NCF-2005 Position Paper on Teaching of Science, which of the following is an important and transferable skill that helps the children in 'learning to learn' science?

24. Which of the following statements correctly describes the difference between Science and Pseudoscience ?

25. A teacher wanted to teach the laws of floatation. She began by explaining the meaning of the term floatation and then took three objects of different materials and sizes. She dropped these objects. one by one into a big glass container can of water and asked students to observe what was happening. She pointed out that the fluid in which the object has to float should have, density more than the average density of the object. How would you evaluate this strategy from the point of view of inquiry-oriented pedagogy ?

26. Which of the following is NOT a suitable indicator for assessing students' ability to think rationally ?

27. A Class VI teacher, while teaching the topic 'non-contact forces explains,electrostatic force by first introducing the concept of electrostatic charge,,electrostatic field and electrostatic potential.Which of the following curricular validities is being violated in this case?

28. A teacher wanted her students to investigate the effect of temperature on the resistance of the given length of metallic wire. She guided them to set up an experiment based on varying the factor of interest while keeping the other factors constant across situations. Which of the following statements would be correct about the experiment they set up for the purpose?

29. Which of the following is a desirable practice to be adopted by a science teacher in her/his class?

30. A teacher explains the concept of flow of electric current in a circuit by comparing it with the more familiar example of flow of water from higher to low pressure. Just as water flows from higher to lower level, so also the electrons flow from higher to lower potential and this flow continues till the time potential difference exists. Which pedagogic device is the teacher employing?