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HEAT  BLOG 13 RADIATION - part 2 ................................................................................................................................... In today's  blog lesson  we will be bringing the  Chapter on HEAT t o a  close.   We will look into a few  practical applications  based on heat being transferred by Radiation and will learn through  a simple experiment  that the amount of heat absorbed or received by an object / body is dependent on the distance from the source of heat. Read the activity given below : INFERENCE  : The quantity of heat absorbed by a body depends upon its distance from the source of heat. -The quantity of heat absorbed by a body depends on its distance from the source of heat Now I will be asking you some questions on radiation. Try to solve them yourselves before reading the answers.         ...

HEAT - BLOG POST 12        Radiation  - PART 1 IMPORTANT REMINDER- *We at St Columba's School, are ready to take the next step - and move towards using Google Classroom as a tool to enhance the teaching learning environment. *This shift involves the school giving each student a unique email address, which he will need to setup ( the teachers will assist him in doing the same). This email will facilitate each student to interact with his teachers. * The student should use this email ID only for: -interacting with  teachers on school /subject related matters -keep the words and expressions as he would- if he  were interacting with us as a Columban student -use the facilities connected to this email ID only for google meets organised with the permission of a teacher  -he should have a copy of the permission given ( when and by which teacher and for what purpose) -do not access any of the other facilities connected w...

HEAT post 11 (Convection -part iii)  G ood  Morning  Students,  We have learnt about convection . During today's blog lesson we will learn about  a few applications  of convectional currents in our day to day lives,. Some of these  you are quite familiar with since they have been introduced to you earlier. ...............................................................................................................................................................  Click on the following link to learn about ocean currents:    https://www.youtube.com/watch?v=EvTZT2ixQKk EXPLANATION - OCEAN CURRENTS The ocean water near the equator gets heated by the sun rays. As a result, the ocean water in the equatorial region becomes hotter and lighter. The ocean water in the polar region is cold and therefore dense. Due to its temperature difference , warm water starts flowing on the surface of the ocean from equatorial regi...

Heat -Post 10    CONVECTION part II        Well boys, we have learnt about  Convection. During today's blog lesson we will look into another experiment based on  Convection currents in air and its practical application. .................................................................................................................................................................. The link below provides a recap to  convection currents in  liquids and moves on to explain convection currents in Air.             https://www.youtube.com/watch?v=0CxkdJeqNfM Click on the link below if you would like a recap of the experiment   that was taught yesterday which explains convection currents in liquids ( Round Bottomed flask experiment with Potassium per mangnate) https://youtu.be/0BdRaWFR2IM ......................................................................