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HOLIDAY HOMEWORK CLASS 8 INTEGRATED

1. TAKE A LOOK AT THIS VEHICLE  AND LOOK CLOSELY AT THE TYRE . HOW IS IT HELPFUL IN DRIVING THIS VEHICLE THROUGH MARSHY AREA ?


2.IN A  CERTAIN  VILLAGE IN THE HILLS THE VILLAGERS DECIDED THAT THEY ARE NOT GOING TO TAKE THEIR COWS AND GOATS TO THE HILLS  FOR GRAZING INTEAD THE PEOPLE WILL GO TO THE HILL AND HARVEST THE GRASS AND STALL FEED THEIR LIVESTOCK. THE REASON  GIVEN WAS TO PREVENT SOIL EROSION. IS IT CORRECT TO SAY COWS AND GOATS CAN CAUSE MORE SOIL EROSION BY WALKING ON THE HILLS.
SHOWN ABOVE ARE THE FOOT PRINTS OF MAN AND HOOFPRINT OF A COW.CAN YOU TELL  ME WHY STALL FEEDING IS RECOMMENDED FOR THIS. ( CLUE ; APPLY WHAT YOU HAVE LEARNT IN PHYSICS i,e pressure).
3. IN THE PICTURE SHOWN BELOW THE FIRST ONE IS A NYLON FISHING NET AND THE SECOND ONE IS A JUTE FISHING NET . YOU HAVE TO TELL ME WHY FISHERMEN PREFER NYLON NETS TO  THE ONES MADE OF JUTE?

4. THE HYDROGEN AND HELIUM BALLONS WHICH ARE USED TO STUDY WEATHER WHEN THEY REACH THE UPPER LAYER OF TROPOSPHERE . CAN YOU GIVE THE REASON WHY THEY EXPLODE?
5. GOOGLE HAS  LAUNCHED A PROJECT CALLED PROJECT LOON WHICH USES BALLONS TO PROVIDE CHEAPER INTERNET CONNECTIVITY . IN THIS AGE OF SATELLITE  WHY DO WE USE BALLONS WHICH IS A MORE PRIMITIVE TECHNOLOGY WHEN COMPARED TO SATELLITE?
click the below link to know more about project loon
https://x.company/loon/
6. SEE THE VIDEO BY CLICKING THE LINK BELOW AND AND ANSWER THE FOLLOWING QUESTIONS.


https://www.youtube.com/watch?v=eKPYjISBveY
A. WHY PEOPLE PREFER TO USE PUBLIC TRANSPORT IN SINGAPORE?
B. WHAT ARE THE COSTS INVOLVED IN DRIVING ONES OWN CAR IN SINGAPORE.?
C. WHAT IS MRTS? WHY MODERN CITIES NEED TO HAVE MRTS ? HOW DOES IT HELP IN SOLVING THE PROBLEM OF POLLUTION IN CITIES?

D.WHAT ARE THE IMPROVEMENTS THAT CAN BE DONE IN PUBLIC TRANSPORT SYSTEM WHICH WOULD MAKE IT MORE PEOPLE FRIENDLY?
E. WHAT CAN NEW DELHI LEARN FROM SINGAPORE?

https://www.ted.com/talks/michael_pritchard_invents_a_water_fil...
DISCUSS HOW THIS INNOVATION IS HELPFUL IN THE EVENT OF A DISASTER?

CAN YOU THINK HOW THIS TYPES OF INVENTIONS CAN INCREASE THE LITERACY RATE IN VILLAGES IN LESS DEVELOPED COUNTRIES  ESPECIALLY THAT OF GIRLS.

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