Available Answers

1. 1.

   Choose and write the correct option:

   1. What did earlier people use to cover their bodies?
      1. Leaves
      2. Clothes
      3. Paper
   2. Which of the following is obtained from plants?
      1. Silk
      2. Wool
      3. Jute
   3. Which of the following is a soluble impurity?
      1. Stones
      2. Mud
      3. Germs
   4. Solids are ___________ to touch.
      1. soft
      2. smooth
      3. hard
   5. When ice changes into water, it is called ___________.
      1. freezing
      2. melting
      3. condensation
   6. Which of the following is an example of an inclined plane?
      1. Ramp
      2. Scissor
      3. Lid
   7. The Earth's ___________ is responsible for seasons.
      1. rotation
      2. revolution
      3. both of these
   8. Which of the following organic matter is formed in soil?
      1. Sand
      2. Silt
      3. Dead animals
   9. Land pollution reduces the ___________ of soil.
      1. colour
      2. fertility
      3. texture
   10. Which of the following should we not use?
       1. Paper bag
       2. Polythene bag
       3. Cloth bag
2. 2.

   Fill in the blanks:

   1. Clothes make us look ___________ and smart.
   2. Silk and wool are fibres obtained from ___________.
   3. Air is a mixture of ___________.
   4. Soluble impurities cannot be seen like ___________ and germs.
   5. The force exerted by our muscles is called ___________.
   6. ___________ can change the direction of moving object.
   7. The topmost layer of the Earth's crust forms ___________.
   8. Soil is formed from the ___________ of rocks and minerals.
   9. The removal of topsoil by the action of wind and water is called ___________.
   10. ___________ soil contains big sand particles.
3. 3.

   Write right or wrong for the following statements:

   1. Higher the temperature, lower is the evaporation.
   2. During the night, the land cools faster than the sea.
   3. Matter is made up of small particles called molecules.
   4. Gases have definite shape and size.
   5. stars are the only bodies we see in the sky at night.
   6. All planets have their own satellite or moons.
   7. The Earth completes one revolution in 365 1/4 days.
   8. Soil is important for all forms of life on the Earth.
   9. air pollution can cause cough, breathing problems and burning of the eyes.
   10. Do not use polythene bags or plastic bags.
4. 4.

   Match the following:

   1. Woollen clothes	a. man-made fibre
   2. Umbrella	b. animal fibre
   3. Cotton	c. monsoon
   4. Wool	d. winter season
   5. Polyester	e. plant fibre

    

5. 5.

   Why do we need clothes?
6. 6.

   How do we take care of our clothes?