Wednesday 7 August 2013

BGS National Public School
Hulimavu, Bangalore – 560076
Date: 01st August 2013
Tell Me Why – Questions (Classes VI to XII)

Sl. No.
Name of the student
Class
Question
1.       
Rishidar
Abhishek
IX B
How can the life of a star be measured when no one can even go near them?
2.       
Aditi J. S.
VIII A
Why is the left Kidney found slightly higher than the right kidney? How does it help to function?
3.       
V Shreyas
V. P Shravan
IX B
Why does a chameleon change its colour and how?
4.       
Aditya sivaram
IX B
Is there a limit to the Universe? Is it infinite space or are there any boundaries? What is the meaning of space static?
5.       
Thilak K
IX A
Why is the shadow black in colour?
6.       
Shravan S. H.
IX A
Ø  The ‘Big Bang Theory’ violates many laws of Physics. Why then is it the most accepted?
Ø  Why does the structural strength of a metal sheet used in construction increase with increase of bends or folds?
Ø  Why is it that Thermo set plastic be moulded only once but not thermoplastic? And how is thermo set plastic moulded the first time? From where do we get (source) of thermo set plastic?
Ø  According to the 3rd law of motion, every action has an equal and opposite reaction. Why then is it when we punch a heavy punching bag or anything soft we don’t feel the same force acting on our body?
Ø  How was the speed of light calculated?
Ø  How was the speed of sound calculated?
7.       
Shreya C
VI C
What gives skin its colour?
8.       
Harika Saisree
IX B
Is there any other fruit or vegetable like onion having sulphur?

Note: Students to answer the questions and post it with full name, class and section mentioned below.


Principal
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3 comments:

  1. Unknown12 August 2013 at 07:15

    Hi V Shreyas,V. P Shravanl

    The chameleon has several cell layers beneath its transparent skin. These layers are the source of the chameleon's color change. Some of the layers contain pigments, while others just reflect light to create new colors.

    Several factors contribute to the color change. A popular misconception is that chameleons change color to match their environment. This isn't true. Light, temperature, and emotional state commonly bring about a chameleon's change in color. The chameleon will most often change between green, brown and gray, which co-incidentally often matches the background colors of their habitat
    Pooja Umesh IX A

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  2. Unknown12 August 2013 at 07:17

    Hi Shreya,
    Skin color can be everything from very pale to very dark, and many shades in between. That's because of something called melanin, which is made in the epidermis. Some people call it pigment.
    Pooja umesh IX A

    ReplyDelete
  3. Unknown12 August 2013 at 07:20

    Hi Thilak,
    Shadows most often appear black because the visible light cannot make its way past the obstruction, if there is no light falling on an object then it will be black as there is no light to reflect. Shadows are very rarely completely black as there are usually reflections off surfaces and other light sources, which make their way into the shadowy area.
    Pooja Umesh IX A

    ReplyDelete

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