By this experiment, we observe that melting point is a surface phenomenon. The more the amount of space occupied, the less time it will take to melt and vice versa.
CTET Solved Paper MCQ - CTET September 2016 Paper2
It is important to remove chlorophyll because it is a green pigment and so marks the colour change of the Iodine test for starch.
- A explain different methods of separation of mixtures first and then explain the separation of sand and salt mixture
- B provide the mixture of sand and salt to students, ask them to think up different ways of separation and help them in trying out their ideas
- C ask students to hypothesise about different ways in which a mixture of sand and salt can be separated and then lead them to the correct answer through detailed explanations
- D take a mixture of sand and salt, demonstrate its separation and then ask students to repeat it on their own
As a supporter of inquiry-oriented pedagogy, you should first explain the students about various methods of separating mixtures and then lead them to correct explanation of separating sand and salt mixture.
- A Technology is a more creative process as compared to Science
- B Science is a broader endeavour while Technology is goal-oriented and often locale-specific
- C Science is an ancient enterprise but Technology is relatively recent
- D Science and Technology proceed independently and in isolation from each other
Science is a broader endeavour while Technology is goal oriented and often local-specific.
Sunflower is not a single flower, instead it is made up of a composite bouquet of hundreds of flowers.
