Saturday, October 26, 2019

RALLY TO PROMOTE ECO FRIENDLY DIWALI










A Rally was organised by DAV PUSHPANJALI CAMBRIDGE STUDENTS CLASS (3-6) on 25 OCTOBER 2019, to promote celebration of Ecofriendly Diwali by spreading the message of not bursting crackers, using earthen lamps to light the houses instead of energy consuming lights and giving ecofriendly gifts.
By doing this we can stop pollution and save our lives from many deadly pulmonary disease also we prevent animals from being harmed by noise pollution 


Tuesday, October 22, 2019

To test the presence of carbon dioxide gas in the reaction of metal carbonates and acid by lime water





In the activity students observed the reaction between sodium bicarbonate and dilute sulfuric acid in the test tube, the gas which was released passed in the U-TUBE having lime water.
The lime water turns milky in the presence of gas which shows that the gas released was carbon dioxide.


To investigate the effect of acid rain on the growth of cress seeds - ACTIVITY OF CLASS 8







In the activity students took four petridishes, in each petridish they first place some cotton. After they moisten the cotton with some water. They place sprinkle 20 cress seeds in each petridish .Then in
PETRIDISH A - They put 10 drops of water
PETRIDISH B- They put 10 drops of citric acid (present in lemon)
PETRIDISH C- They put 5 drops of water + 5 drops of citric acid
PETRIDISH D- They put 1 drop acid + 9 drops of water
After 1 week they will observe in which petridish the plant growth is affected  

Wednesday, October 16, 2019

WORLD FOOD DAY






World food day is a day of action dedicated to tackling global hunger, held annually on 16 October. People around the world come together to declare their commitment to eradicate world wide hunger from our lives.

The theme of World Food Day 2019 is “Our Actions Are Our Future. 

Healthy Diets for a "ZeroHunger World". It focuses on tackling global hunger. Due to globalisation, urbanisation and income growth, our diets and eating habits are changed. Instead of seasonal, fibre rich food and plant based food we are shifted to refined, starches, sugar, fats, salt, processed food, meat, etc. It has been seen that in urban areas time spent on preparing food or meals is very less because people these days rely on ready mate food, supermarkets, fast food, street food, etc.

8 Reasons why Zero hunger changes the world
  • Zero hunger saves the life of 3.1 million children a year
  • Well nourished mothers have a healthier babies with strong immune systems
  • Ending child Under nutrition could increase a developing country's GDP by 16.5 %
  • A dollar invested in hunger prevention could return between $15-1$39 in benefits
  • Proper nutrition early in life could means 46 % more in lifetime earnings
  • Eliminating in iron deficiency in a population could boost workplace productivity by 20%
  • Ending nutrition related child mortality could increase a workforce by 9.4%
  • Zero hunger can help build safer, more prosperous world for everyone.

"Investigating the effect of temperature on the growth of Bread Mould " ACTIVITY OF CLASS 8





Four Breads were taken and put in different temperature conditions
Bread-1 IN FREEZER
Bread-2 IN FRIDGE
Bread-3 IN COOL AND DARK PLACE
Bread-4 IN WARM AND MOIST PLACE

Students observed the growth of bread mould in different temperature conditions, they counted the number of colonies of bread mould and estimated the percentage area covered by bread mould in different temperature conditions.

Wednesday, October 2, 2019

Investigating conditions that are needed for the rust to form? CLASS 7 Activity




Three test tubes represents :

Test tube-1 : Iron nail + tap water

Test tube-2 : Iron nail + Calcium chloride , mouth of test tube was closed with a cork

Test tube -3 : Iron nail + tap water and a layer of oil , mouth of test tube was closed with a cork

Learners will be able to conclude about the conditions necessary for the rusting to occur (oxygen and water)