Class 6 chapter 1,2 and 4

https://drive.google.com/file/d/1G7e2wQwLcV6vR8WwUuCniK4XBKg847ee/view?usp=sharing


https://drive.google.com/file/d/12pYWrb5MHxLh458ROV6X7710BqGO_oT7/view?usp=sharing

Go through the notes of chapter 2 from above link
https://www.learncbse.in/components-food-cbse-notes-class-6-science/

Children use the link given below to understand and write the notes for chapter 2: Components of Food (class 6)
https://www.learncbse.in/components-food-cbse-notes-class-6-science/ 

class 9

https://www.youtube.com/watch?v=apewLkLAR-U

follow this video to understand concept of speed and velocity

class 6

https://www.youtube.com/watch?v=Uzltty4LSIE
follow this link to understand international system of numeration

class 8

https://www.youtube.com/watch?v=fDWGY1FcKqo

follow this for pie chart 

class 7:

https://youtu.be/6DYtC7lrVuY

follow the above video to understand mean, median,mode 

Global Warming

A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.



A greenhouse gas  is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect on planets. The primary greenhouse gases in Earth's atmosphere are water vapor (H. 2O), carbon dioxide (CO. 2), methane (CH.4)

Following are the cultural, political and socio-economic reasons for pollution in different countries