Friday, July 23, 2021

Happy Guru Purnima to everyone 24 July 2021

 

DAILY LOG 23 JULY 2021

 CLASS VIII 

CLASSWORK - CHAPTER-6 Making salts was discussed 

HOMEWORK - Try to do workbook questions of  Topic-1 Chapter-6 


CLASS VII 

CLASSWORK - Chapter-2 Effects of lifestyle on health was discussed 

HOMEWORK - Research on Type-1 and 2 Diabetes for discussion in class  


Tuesday, July 13, 2021

Science Activity - PAPER CHROMATOGRAPHY

PAPER CHROMATOGRAPHY 

  • APPARATUS REQUIRED 
  • black and blue mark­ers
  • Sanitizer
  • sheet of thick pa­per
  • beaker

  • PROCEDURE

Take a small sheet of thick paper which can fit in a beaker. Make dots on the pa­per withblack, blue, and a mix­ture of col­ors (black + blue). To make the dots on the same lev­el, draw a start­ing line with a pen­cil first. Now low­er the pa­per in the beaker with ethanol, about half a cen­time­ter from the bot­tom. Then seal the beaker, so the ethanol doesn’t evap­o­rate. Af­ter half an hour, ob­serve the move­ment and sep­a­ra­tion of col­ors on the pa­per.

Chro­matog­ra­phy is a method for an­a­lyz­ing sub­stances by their sep­a­ra­tion into com­po­nents. The method was dis­cov­ered by Mikhail Tsvet, who sep­a­rat­ed col­or pig­ments of plants. In our ex­per­i­ment, we must se­lect the sol­vent which is con­tained the mark­ers. This is usu­al­ly ethanol.

Due to the cap­il­lary ef­fect, the ethanol soaks the pa­per even­ly, tak­ing the dyes with it. The dyes in the mix­ture re­act dif­fer­ent­ly with the al­co­hol, so they rise at dif­fer­ent speeds.

Sep­a­ra­tion is based on this dif­fer­ence in speed. 
















 

Monday, June 14, 2021

READING WEEK CLASS VII

 

Daily Log 14 June 2021

 CLASS VIII

CLASSWORK - Question-answers of topic-1 chapter-5 from students book was done 

HOMEWORK- Read topic-2 of chapter-5 


CLASS VII

CLASSWORK- Question answers of chapter-2 was done 

HOMEWORK- Try to complete the remaining questions given in back exercise of chapter-2

Friday, June 11, 2021

Daily Log 11 June 2021

 CLASS VIII

CLASSWORK- Structure of atom was done 

Home work - Find no. of subatomic particles and draw electron arrangement of 

C, K, N, F, Ne


CLASS VII 

CLASSWORK- Transport of water and mineral salts was done 

HOMEWORK- Complete Q- 3 of students book of topic-4 chapter-2 

Wednesday, June 9, 2021

Daily Log 10 June 2021

 CLASS VIII

CLASSWORK- Neils Bohr Model was discussed

HOMEWORK - Read Interactive Board work and Book of chapter-5 Topic-1 


CLASS VII

CLASSWORK - Transport of Water and Mineral Salts was discussed

HOMEWORK- Q-1 and 2 of Students book to be done in Science Notebook

Holidays Homework 2021 By Learners of STAGE -8 AND 9





 

Welcome Back! After Summer Break



Welcome Back Dear Students!
Lets start our session with tremendous energy and zeal. To have an amazing experience of learning.