Vii General Sc.

Class VII Physics & Chemistry 1.Read the clues and solve the puzzle: Across a)An element used for making wrapping foils. b)Name of the element having symbol Na. c) Common name of the compound whose chemical formula is H2O. Down a) Ultimate source of light b) An object that partially allows light to pass through it. c)The most abundant gas in air. T R A N S A

L

U

M

I

U S

N

I

U

M

S O

D

I

C

U

M

N

E N

W

A

T

E

R

T

2. Prepare a power point presentation on different phases of moon that occur during lunar eclipse and also mention its last occurrence in India. 3.Discuss various causes and steps taken by government to control water pollution. Cut and paste the articles from newspapers & magazines highlighting the plight of river Yamuna. 4. List out the human activities which have exploited the natural resources of the earth. 5.Collect information about the working of flute, the musical instrument. Biology Holidays Home work- 2009 1. A pot a tree. Cutting down of trees is a major concern for mankind. Choose a tree near your house and prepare a scrap book about it. You can find out its name in different languages as well as its scientific name. Draw pictures or click photographs of that useful for the community. (medicinal value, provides shade, fruit etc.)

2. Try to find out some information about blood group and their importance. Make a list of blood groups of 10 family members / class mates of yours. 3. Make a poster related to water shortage and water conservation to be displayed in school.