7/17/2019 XI holiday

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 Delhi Public School, Gwalior

Class –  XI

Holiday Assignment – 

 (2015-16)Physics

Visit any place where the solar devices are being used for consumption of energy and prepare a

report under the following heads:

i) Introduction

ii) Name of the solar devices

iii) Applications of the devices

iv) Advantage of using the devices over conventional sources.

Prepare the observation records in a scrap book and support the visit with original and relevant

 photographs. (minimum 5-6).

Chemistry

Visit a Godrej Soap Factory and record your observations under the following heads:i) Introduction of the plant

ii) Chemical requirediii) Chemical method and principle used

iv) Quality of soapPrepare the observation records in a scrap book and support the visit with original and relevant

 photographs. (minimum 5-6).

Biology 

Visit any Agriculture/Biotechnology college/university and prepare a report under the followingheads:

i) Introduction

ii) Biological description of processes conducted there.

iii) Application of those processes in human welfare.

Prepare the observation records in a scrap book and support the visit with original and relevant

 photographs. (minimum 5-6).

Maths Survey minimum twenty/ twenty five families in your locality and collect data related to following

 points:

i) Number of people who read Danik Bhaskar.ii) Number of people who read Times of India.

iii) Number of people who read Hindustan Times.iv) Number of people who read (1) and (2).

v) Number of people who read (1) and (3).vi) Number of people who read (2) and (3).

Tabulate the above data in a scrap book and find the following information:(a) the number of people who read at least one of the newspapers.

(b) the number of people who read exactly one newspaper.

Draw a Venn diagram for the above on a chart paper and compare the results.

N.B. Last day for the submission of holiday assignments is July 6, 2015 (Monday).

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