Available Answers

1. 1.

   Can we use a clinical thermometer to measure the temperature of boiling water? Why?

2. 2.

   What are gloos made up of?

3. 3.

   If a large metal spoon is left in a cooking vessel kept on a flame, it becomes hot, why?

4. 4.

   Why are the windows of the houses in coastal areas, made to face the sea?

5. 5.

   Check point:

   1. Human body temperature is measured by ________________.
      1. Laboratory thermometer
      2. Barometer
      3. Odometer
      4. Clinical thermometer
   2. This scale is not used to measure temperature ________________.
      1. Fahrenheit scale
      2. Kelvin scale
      3. Celsius scale
      4. Ampere scale
   3. Which is not used to make cooking vessels?
      1. Steel
      2. Tungsten
      3. Copper
      4. Aluminum
   4. Which is not a mode of transfer of heat?
      1. Conduction
      2. Convection
      3. Reduction
      4. Radiation
   5. In sea breeze, during the daytime ________________.
      1. Hot air rushes from the sea towards the land.
      2. Cold air rushes from the sea towards the land.
      3. Cold air rushes from the land towards the sea.
      4. Hot air rushes from the sea towards the land.
   6. Conduction of heat takes place through ________________.
      1. Solids only
      2. Liquids only
      3. Gases only
      4. Vacuum only
   7. The highest reading on a clinical thermometer is ________________.
      1. 0°C
      2. 37°C
      3. 42°C
      4. 100°C
6. 6.

   True-False:

   1. A laboratory thermometer has a kink in its stem.
   2. A clinical thermometer should be washed and dried properly before use every time.
   3. Metals are poor conductors of heat.
   4. Black and dark colour objects absorb maximum heat.
   5. Convection occurs in solids.
   6. Disposing a broken thermometer is harmful to the environment.