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Subject: EVS, asked on 21/8/15

what is coal

Subject: EVS, asked on 8/2/21

Write the experiment in the given format.
AIM- To study the effect of heat on lead nitrate

Material Required-
Observation-
1. Change in colour of compound-
2. Colour of gases released-
3. Test for Oxygen-
4. Litmus test for both the gases-
Chemical Equation-
Conclusion –

Subject: EVS, asked on 4/2/21

  1. What is turpentine?
  2. Why does wax does not dissolve in water?
  3. Why does powdered sugar dissolve faster
  4. How does temprature affect in solubility of a substance?

Subject: EVS, asked on 19/11/16

we know that water flows from higher level to a lower level. How can water reaches on the 15th floor of an apartment?

Subject: EVS, asked on 18/11/16

what is the shape of air of balloon when the balloon is burst

Subject: EVS, asked on 15/11/16

what is the shape of air inside a balloon

Subject: EVS, asked on 21/3/14

What are molecules of elements?

Subject: EVS, asked on 2/3/14

Air is a matter or not?

Subject: EVS, asked on 5/2/14

when were dinosaurs born?

how eart was form

Subject: EVS, asked on 1/2/14

when a valcano erupts, hot molten lava spreads out like a liquid. This lava becomes solid on cooling.why?

Subject: EVS, asked on 8/1/14

what are intermolecules

Subject: EVS, asked on 8/1/14

what are molecules?

Subject: EVS, asked on 2/1/14

what is meant by intermolecular

IntermolecularIntermolecular

Subject: EVS, asked on 18/11/13

where can i get information on evaporation and condensation ?

Subject: EVS, asked on 16/11/13

what is the meaning of minimal ?

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