Thursday, 21 September 2017
Sunday, 10 September 2017
Saturday, 26 August 2017
NAME_____________________
Heating
Curve Worksheet
This graph is showing heating of water. Now observe this graph and answer the following question:
1) What
is happening to the average kinetic energy of the molecules in the
sample during section 2?
2) As
a substance goes through section (2), what happens to the distance
between the particles?
3) What
is the name of the process happening during section (4)?
4) What
is the melting point of this substance?
5) Shade
the region which is representing latent heat of vapourisation.
6) When
this substance is melting, the temperature of the ice-water mixture
remains constant because:
a. Heat
is not being absorbed
b. The
ice is colder that the water
c. Heat
energy is being converted to potential energy
d. Heat
energy is being converted to kinetic energy
7) Write
the name of the processes shown in the following diagram:
8) –128oC
is equal to ____________K.
Tuesday, 15 August 2017
CLASS -IX SIMPLE SEPARATION TECHNIQUES
WATCH THE CONTENT CAREFULLY AND ANSWER TO THE QUESTIONS ASKED IN BETWEEN:
Wednesday, 31 May 2017
Monday, 15 May 2017
Tuesday, 9 May 2017
GLOBAL WARMING
FIND OUT THE ANSWERS OF FOLLOWING QUESTIONS IN THE LINK OF VIDEO GIVEN ALONG:
(A) What do you understand by the term 'Global warming'?
(B) What are the various causes of it?
(c) Discuss some ways to prevent this Global warming:
Monday, 8 May 2017
Air Pollution
FIND OUT THE ANSWERS OF FOLLOWING QUESTIONS IN THIS VIDEO:
1. How are the human beings polluting the air?
2. Name the gases which are released due to Industries.
3. How does Acid Rain occur?
4. Which gases are released due to vehicle running on roads?
5. What do you understand by the term Smog?
6. What are CFC’s? What are their sources of production? How harmful are these to the environment?
Friday, 5 May 2017
Sunday, 30 April 2017
Tuesday, 25 April 2017
Sunday, 9 April 2017
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