A. Choose the correct option.
1. When on the road, everyone should obey the _____. (footpath / traffic lights)
2. _____ is a synthetic fibre. (Nylon / Cotton)
3. Eating _____ food can cause food poisoning. (fresh / stale)
4. _____ is surface water. (Well water / Lake water)
B. Give one word for each of the following sentences.
1. The rules we follow to avoid accidents.
2. The fibre that comes from sheep.
3. The clothes worn by a factory worker.
4. On very cold nights, the dew freezes to form ice.
5. The breeze which blows at night.
C. Define the following terms.
1. First-Aid
2. Fog
D. Answer the following questions.
1. Write one safety rule you would follow if you have to cross the road.
2. Why should silk and woollen clothes be stored properly?
E. Differentiate between evaporation and condensation.
F. Justify the following statements.
1. We should not wear nylon clothes to the kitchen.
2. We wear uniform to school.
3. Water of the oceans and seas are not fit for drinking.
G. Look at the picture and answer the questions.
1. Name the fibre obtained from this plant.
2. In which season will you wear clothes made from this fibre?
Identify the diagram and answer the questions.
3. Name the breeze which is blowing.
4. This breeze blows during the day when the land is _____ than the water.
Please click on below link to download CBSE Class 4 Science Worksheet Set M