CTET Solved Paper - CTET September 2015
- Option : C
- Explanation : (C) The candle stops burning after sometime is an observation but the other two statements can't be observed. Thus, statement II and III are inferences.
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132. Which one among the following questions would be an 'open ended' question?
- Option : D
- Explanation : (D) Open-ended questions are the subjective type of questions which are answered with some creativity. They can also be called the free-response type of questions. The question "what would happen if force of friction ceased to exist?" has to be answered creatively while all other questions have some law behind them.
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133. Which one of the following statements is true about the 'laws' and 'theories' in science?
- A
Theories are found in biological sciences only and laws are found in physical sciences only
- B
Theories and laws are the same and perform the same function except that laws are briefer form of theories
- C
Laws are generalized descriptions of the relationships among observable phenomena and theories are explanations for the observable phenomena
- D
Theories become laws when validated
- Option : C
- Explanation : (C) Law in science is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of the phenomenon is called theory in science.
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- Option : A
- Explanation : (A) Observation schedule is a method in which data in the field is collected with the help of observation of observer.
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135. Which one of the following should not be an aim of science education at upper primary level?
- Option : A
- Explanation : (A) Inculcating values at primary level is not a required aim by science teachers.
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