Monday, 30 November 2015

Essential Questions



How do we see things in Science?

         We see science as a utility tool for advancement in life. Basically, whatever we see around compels us to question and get answers. Science helps us to study and provide answers to the happenings around us based on observe ( visual observation), studies,(text books and case studies) experiement (through laboratory- use of microscope, simulation techniques, applicability of laws of science)and research(to find answers to the unsolved questions with the help of principals of science and hypothesis). For example formation of clouds and rainfall which is a natural phenomena helped us long time back to explore the reasons and thereby study climate and weather pattern. This has immensely helped farmers in selecting cropped pattern and ecologists in studying natural habitat.

While we have progressed in Science to suit our requirements, however, there are still very many questions whose answers are required to be found out. Therefore, continuos study, testing of hypothesis, and research is the way to see and explore things in science.

How do we know if something exists? If we can’t see it?

         Human beings is gifted with senses which help us in detecting things around us. We might know if something exists by the five senses which gives us clue to the existence of something. For example, mild blow of breeze can be felt by our sensory nerves. However, very distant and extremely minute things largely goes unnoticed by human beings because of limitations of our sensory qualities. Therefore, such things require additional effort ( in the form of experiement and deeper study through use of technical gadgets such as telescope, imaging, use of satellites and use of alpha beta and gamma rays.) to know more about them.

Redo for Q1.

              As we all know that science helps us to see and analyse various happenings around us. We see things in science with the help of (a) observation - through our eyes which helps us to visualise dimension, distance and other  identification features (b)  senses - things which cannot be  seen and  touched but only felt e.g., phenomenon of hot/cold, taste, smell and intensity of noise, (c) use of technical gadgets  when we cannot see/feel  something with our eyes/senses,  and also for accurate measurement of weight,dimension and composition of objects  - e.g., use of microscope, telescope, weighing instruments, recording meters, other technical instruments recording for interpreting  mathematical/statistical data and for  recording physical and chemical changes in objects for transformation from one state of matter to the other ( for example, conversion of water from solid to liquid to gas and reconversion into solid form), (d) quantitative techniques - e.g., hypothesis, simulation, mathematical models and theories, and experimentation. In fact quantitative techniques constitute an important proponent of how we see things in science. Various unexplained happenings all around us and in the universe is first put to test through hypothesis and based on results  obtained,  we propound theory and explanation to the happenings which is then experimented to determine accuracy.


2 comments:

  1. I think you may have misinterpreted the question. Consider the activities and discussions in class and the unit theme (microscopy). Your answer seems to deal more with what science is or can do for society rather than how we "see".

    You have the beginnings of some good examples in your answer to the second question. The idea of using senses other than sight is a valuable discussion. Gamma rays are things we cannot see, but we know they exist. How? Does looking through a lens, i.e. in a telescope or microscope, mean we aren't seeing an object? What else do we use to "see"? What if we can't use any kind of microscope? How do we know things like gravity or black holes exist?

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  2. This is better. What other methods of "seeing" did we investigate in class? What connections can you make to previous topics?

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