SUBJECT - EVS
28/01/2021 (THURSDAY)
VIRTUAL ONLINE CLASS DETAILS
TOPIC TAUGHT (TODAY)
CH- 11 (Air, Water, and Weather)
- Recapitulation
- Textbook exercise is done in the virtual class
Textbook Exercise 👇
Look at the picture given below and write the names of the processes in
the given boxes.
Notebook Work👇
New Words
1. weather
2. seasons
3. water cycle
4. oxygen
5. nitrogen
6. carbon dioxide
7. water vapour
8. scarcity
9. rainwater harvesting
10.reduce
11. reuse
12. recycle
13. evaporation
14. condensation
15. precipitation
16. collection
17. atmosphere
New Terms
1. consumption- The action of using up a resource.
2. prevention- The action of stopping something from happening or arising.
Q5. Explain the following terms.
a. Season- When a particular weather condition prevails for a longer time it is called a season.
b. Weather- The atmospheric conditions of a particular place at a
particular time is called weather.
c. Wind- Moving air is called wind.
Q6. Answer the following questions in 3 to 5 sentences.
Q a. What is air pollution?
Ans. When dust particles, smoke and other harmful substances mix with air, the air
gets polluted.
Q b. List the gases present in air.
Ans. The gases present in air are oxygen, carbon dioxide, and nitrogen.
Q c. State how water pollution can be prevented.
Ans. Water pollution can be prevented by:
1. Not putting oil, grease, medicines, and cleaning agents down the sink or
toilets.
2. Not disposing of garbage in water bodies.
3. Not disposing of industrial waste in water bodies without treating it first.
4. Cleaning polluted water bodies such as rivers, seas, and oceans.
Q d. State the factors affecting change in weather.
Ans. The factors affecting change in weather are caused by the sun, clouds, rain, and wind.
HOMEWORK
- Read the chapter and learn the Q/Ans.
Note - Scrapbook Activity-1 (For ch- 11)
Q1. What are water pollution and list out some of its prevention?
(paste or draw a picture of water pollution )
Q2. Choose any one season and make a report. In your report, the following points should be there.
( select your favourite season and paste /draw a picture or that season, including the following points in your picture also.)
1. Different flowers/plants are seen in that specific season.
2. Different fruits that are available only in that specific season.
3. Animals and insects are seen during that season.
4. Clothing and food habits majority followed during that season.
Note - Kindly complete the work by Saturday (30/01/2021) and send the NB and scrapbook work by mail only.
