Subject :NSO Class : Class 4
Nidhi knocked three metal thumbtacks into the middle section of a block of wood and covered this section with a piece of white paper. Then, she brought a lighted candle near this section.
After few seconds, she removed the lighted candle and found burn marks on the paper except on the areas where the thumbtacks were present. Which of the following best explains this observation?
A The paper was a good conductor of heat.
B The thumbtacks and the paper had different temperatures.
C Some parts of the wood absorbed the heat from the candle flame.
D The thumbtacks conducted heat away quickly before the paper could get burnt.
Ans 1:
Class : Class 7
Ans 2: (Master Answer)
Class : Class 1
The correct answer is D.
Ans 3:
Class : Class 6
I can't get the answer of this one.
Ans 4:
Class : Class 8
No idea........can someone just tell me how D??????????????????????????????
Ans 5:
Class : Class 7
The correct answer will be D
Ans 6:
Class : Class 6
d
Ans 7:
Class : Class 8
The correct answer should be A!!!!!
Ans 8:
Class : Class 9
IT IS D ANURADHA 4 C SVN KUTTUMUKKU
Ans 9:
Class : Class 5
Ans 10:
Class : Class 3
The thumb tacks were a good conductor of heat it was knocked in the wood so it could have easily condected the heat in itself
Ans 11:
Class : Class 6
d