Sunday, 23 December 2012

CBSE Class 7 - Maths - Comparing Quantities (NCERT Ex 8.3) - Profit and Loss and Simple Interest

Comparing Quantities
Profit & Loss and Simple Interest
CBSE Class 7 - Maths - Comparing Quantities (NCERT Ex 8.3) - Profit and Loss and Simple Interest

Important points
Simple Interest
1. C.P. = Cost Price (Amount at which goods are purchased)
2. Sales Tax, VAT, cartage etc.are included in cost price.
3. S.P. = Selling Price (Amount at which goods are sold)
4. If SP > CP then it is Profit or Gain. Profit = SP - CP
5. If CP > SP then it is Loss. Loss = CP - SP
6. Profit of Loss per cent is always calculated on the cost price.


Friday, 21 December 2012

CBSE Class 10 - Science - CH 15 - Our Environment (Worksheet)

Our Environment (Worksheet)
ozone layer protects from harmful UV
credits:openclipart

Fill in the blanks

1. Our environment has four components: ________, _________, __________ and ____________.

2. Abnormal increase of the temperature in the environment due to the continuous accumulation of gaseous pollutants is known as __________ _____________.

3. An ecosystem consists of ________components comprising of living organisms and ________ components comprising of physical factors like temperature, rainfall, wind, soil and minerals.

4. __________ is one of the green house gas. It is used as solvent, refrigerants, aerosol spray propellants and in foam packaging.

Thursday, 20 December 2012

CBSE Class 9 - PSA Quiz (English)

PSA Quiz (English)

MCQs
Q1:  The hypocritical minister spoke about the need to save diesel, but drove around in a big SUV. 'Hyocritical' stands for ______________.

(a) highly moral
(b) non sincere
(c) arrogant
(d) sincere

Q2: She has an insatiable love for dancing. 'insatiable' stands for ____________

(a) unquenchable
(b) stubborn
(c) undesirable
(d) voracious

CBSE Class 7 - Science - CH8 - Winds, Storms and Cyclones

Winds, Storms and Cyclones
CBSE Class 7 - Science - CH8 - Winds, Storms and Cyclones
Cyclone Hit at Samoa Islands
credits: NOAA

NCERT Solutions, Q & A

Q1: Fill the missing word in the blank spaces in the following statements:

(a) Wind is _________ air.
(b) Winds are generated due to ________ heating on the earth.
(c) Near the earth’s surface __________air rises up whereas ___________ air comes down.
(d) Air moves from a region of _________ pressure to a region of ___________ pressure.
(e) Air around us exerts __________ in all directions.
(f) Winds carrying ______________ bring rain.
(g) Air _________ on heating while ________ on cooling.
(h) A cyclone is called a __________ in the American continents and __________ in Japan and Philippines.
(i) The word monsoon is derived from the Arabic word _________, which means ‘season’.

Answer:
(a) moving
(b) uneven
(c) warm, cooler

Tuesday, 18 December 2012

CBSE Class 9 - Geography - CH4 - Climate

CLIMATE
Indian Monsoon
credits:wikipedia
MCQs

Q1(NCERT): Which one of the following places receives the highest rainfall in the world?
(a) Silchar
(b) Mawsynram
(c) Cherrapunji
(d) Guwahati


Q2(CBSE 2010): The term monsoon is originated from?

(a) German
(b) Hindi
(c) Latin
(d) Arabic


Q3: The 'Coriolis force' is caused due to:

(a) wind movements
(b) the Earth's rotation
(c) cyclone depressions
(d) jet streams

Monday, 17 December 2012

CBSE Class 11 - C++ Snippets (Part-6)

Graphics Support in TC
c++ snippets
c++ snippets
Turbo C++ has support for various DOS mode graphics (CGA, VGA, SVGA etc.).


Various graphics functions are supported in GRAPHICS.LIB. You need to include <graphics.h> file in your code.
Following are essential functions to be called to invoke graphics mode:

initgraph( ):  initializes the application to work in graphics mode. It takes three arguments, DETECT, graphics mode and path of *.BGI files.

closegraph( ): closes the graphics mode and switches the application back to test mode.

CBSE Class 9 - हिंदी (ब) - मुहावरे

मुहावरे 

a. खाला जी का घर                    b. नाकों चने चबाना                   c.  आँखों का तारा होना 
d. लकीर पीटना               e. नाक में दम करना                  f.  चार चाँद लगाना 
g. एड़ी चोटी का जोर लगाना        h. छाती पर सांप लोटना                i.  नौ दो ग्यारा होना 
j. सूखकर कांटा होना                  k. घी के दिए जलाना                  l. दर दर भटकना  
m. जले पर नमक छिकना        n.  मन्त्र मुग्ध होना                    o. घुटने टेक देना 
p. घी के दिए जलाना                 q. छक्के छुड़ा देना                      r. आँखे पथरा जाना 
s. ईंट से ईंट बजाना                  t. धूल झोंकना 
उपरलिखित मुहावरों द्वारा वाक्य पूर्ति कीजिये:

1. बीमार आशा को जब में देखने गयी तो उसका शरीर ______________________ हो गया था ।
2. जबसे उसकी नौकरी छूटी है वह _______________ रही है ।

Sunday, 16 December 2012

CBSE Class 11 - PSA Sample Paper by CBSE


Class 11 -PSA Paper




See the Sample Answer Sheet


CBSE Class 9 - PSA Sample Paper by CBSE


Class 9 -PSA Paper




See the Sample Answer Sheet


CBSE Class 9 - PSA Quiz (Social Science)

PSA Quiz (Social Science)

(Sample PSA paper from a public school in Delhi)(Passage based MCQs) Read the given passage carefully and answer the following questions:

The heaviest rainfall (11520 cm) in the world has been recorded in Mawsynram (Meghalaya) while the western part of Jaisalmer district is one of the driest part of the world, recording about 9cm of rainfall in a year. There is a wide contrast in the amount of rainfall received by different parts of the country. There is wide contrast in the amount of rainfall received by different parts of the country. Total rainfall increases generally eastward.

Q1: At which place has the maximum rainfall in the world been recorded?

(a) Karakoram
(b) Amritsar
(c) Mawsynram
(d) Indore