Question

(a) gas
(b) solid
(c) liquid
(d) None of these.
II. Answer the following questions.
[3x7=21]
1. Write the application of Radiation.
2. Why do woolen clothes keep us warmer in winters than cotton clothes?
3. How can you form iron sulphide from a mixture of iron and sulphur?
4. How does an insectivorous plant absorb nutrients from an insect trapped by it?
5. Mention the four difference between Laboratory and Clinical Thermometer
6. List four effects that heat produces.
7. Why are the properties of different compounds so different from each other?
III. Fill in the blanks :
(1x5=5]
1. The smallest particle of a compound is
2. If a certain compound has a formula H,X, what is the valency of X
3. For scientific work, the
-. temperature scale is used.
4. Radiant heat falling on a body is partly absorbed and partly ........ Some of
it may also be
5. When iodine is added to starch, it becomes
in colour.
IV. Answer these questions.
[5x4=20]
1. Why are manures and fertilizers added to the soil in a farm?
2. Derive the conversion of temperature scale from Kelvin to Celsius with well
labelled diagram
3. With an example of each and explain the uses of good and bad Conductors of heat.
4. Write down the applications of Convection.
5. Write and explain the properties of compounds.
** BEST OF LUCK **​

Answer 1

Answer:

cant answer this much long question