CTET Solved Paper - CTET September 2015
126. There are two planets in our solar system which rotate from East to West. These planets are
- Option : D
- Explanation : (D) Venus and Uranus rotate in what is called retrograde motion. Retrograde motion is from East to West. All other planets including Earth rotate from West to East.
127. The major excretory product in human beings is
- Option : C
- Explanation : (C) Excretion is the process by which waste products of metabolism and other non-useful materials are eliminated from an organism. Urea is the major excretory product in human beings
- Option : D
- Explanation : (D) On heating strongly or hammering, the kinetic energy of the molecules increases and therefore, the molecular alignment gets disrupted. Hence, the molecules go back to the closed chain arrangement due to thermal agitations. Thus, the magnet gets demagnetised.
- A
Present counter examples and arrange materials of different shapes, sizes and weights for the child to investigate
- B
Explain that heavy and light are relative terms
- C
Accept the statement as it indicates child's ideas and needs to be respected
- D
Explain to the child that it is not the weight but the density of an object that determines whether it is going to sink or float
- Option : A
- Explanation : (A) The statement given by the student is not correct because floating of an object combindly depends on its weight, shape and size called density. Thus the teacher should present counter examples and arrange materials of different shapes, sizes and weights for child's to investigate.
- A
Encouraging students to investigate factors affecting germination through experimentation
- B
Instructing students through team teaching on the topic of 'components of food'
- C
Students being first shown the demonstration of germination of seed followed by a detailed explanation
- D
Elaborated and detailed session of programmed instruction on the topic of 'germination of seed'
- Option : A
- Explanation : (A) Encouraging student's to investigate factors affecting germination through experimentation will let the students to discover the things which they have to learn.
