### Home Work

2020-04-26 15:20:01

Class 8

science

1. Draw the atomic structure of 20 elements

2. Light is necessary for photosynthesis . Explain with figure.

3. Draw the well labelled diagram of human heart.

4. Explain relationship between cell, tissue, organ and system.

Class: 8

• Write a short description about an educational tour that you have ever made.
• Write an application to the principal of your school for a full scholarship.

Class -8

1.Find the HCF  : ( x+3) (x-3) and (x+2) (x-3) .

2.If A={a,b,c,d,e} and B={a,e,i,o,u} ,then find  AUB.

3.Find the mean from the following data :

 x 5 10 15 20 25 30 f 2 5 10 7 4 2

Class-8

1. Find  the  distance  between the points A ( 3,0 ) and B ( 0,5 ) .
3.  Find the H.C.F  of  :

X2+5x +6  , x2+x -6 , x2-9

Class-8

1. Find the L.C.M of x2 – 25 and x2 + 2x -15.
2. Solve:  x + 3y = 13 and x - y = 1.
3. Represent the following data in a pie chart.

Monthly expenditure of a family

 Item Education House rent Food Others Amount (Rs) 8000 4000 10000 14000