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# Category Archives: Class IX

## Maths, IX

- Find six rational numbers between 2 and 5
- Find five rational numbers between 2/3 and 4/5
- Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.
- State whether true or false.
- Every irrational number is a real
- Every rational number is is an integer.
- Every real number is an irrational number.

## Science, IX

- Prepare a scrap book date wise for scientific news recently noticed/ to be noticed in the news paper. This will be considered as one activity for FA2 during the academic year 2016-2017.

## Maths, IX A, B, C, D

- Express the linear equation 2x=-5y in the form ax+by+c=0 and indicate the values of a, b, and c .

2.Check whether (2,0) is a solution of the equation x-2y=4.

- If the point (3,4) lies on the graph of the equation 3y=ax+7, find the value of ‘a’.
- Show that the diagonals of a square are equal and bisect each other at right angles.
- ABCD is a trapezium in which AB||CD and AD=BC.

(Refer page no. 147 in text book , fig. 8.23)

Show that:-

<i> Angle A = Angle B

<ii> Angle C = Angle D

<iii> Triangle ABC = Triangle BAD

<iv> Diagonal AC = Diagonal BD

- (Refer to page no. 163 in text book, fig. 9.27)

In the figure, ABCDE is a pentagon. A line through B parallel to AC meets DC produced at F. Show that :-

<i> ar(ACB) = ar (ACF)

<ii> ar(AEDF) = ar(ABCDE)

7.Construct a Triangle ABC in which BC=7 cm, Angle B=75 degrees and AB+AC= 13 cm.

- Construct a Triangle XYZ in which angle Y=30 degrees, Angle Z=90 degrees and XY+YZ+ZX=11 cm.

**Date of submission: 4 January 2016**

## Maths IX

1) Write an equation of a line which passes through the orgin.

2) Does the point (0,3) lie on the line 3x+4y+12?

3)Write a linear equation such that each point on its graph has an abscissa 4 times its ordinate.

4) Write 2 solutions of the linear equation x+2y=1.

5) Draw the graph of a linear equation whose solutions are represented by the points having a sum of the coordinates as 10 units.

**Date of submission: 3 November 2015**

## English, IX

1. Write a mystery story. (Collect ideas from MCB Unit-Mystery)

2. Write an article on ‘Child Labour’. Include relevant pictures, newspaper clippings and magazine

extracts.

(Collect ideas from MCB Unit- Children)**OR**

Write an article on The Importance of Sports and Games in the overall development of a student.

3. Write the summary of 5 chapters of ‘Three Men In A Boat’. (Second Term)

Date of submission: 3 Nov. 2015

## Biology, IX C

01.Write down the question answers of Gravitation page number:141,142 145

02.Write down the symbol of 25 elements

## Biology, IXB

01.Explain the classification of plant kingdom

## Hindi, IX

**कक्षा ****9**

1) निबन्ध लिखिए (किसी दो)

v बाल श्रमिक

v आतंकवाद

v रवींद्रनाथ टागोर

2) प्राकृतिक सौंदर्य से संबंधित पाँच जगहों का सचित्र वर्णन

3) आठ अलंकारों का दो-दो उदाहरण

4)1857 के स्वतंत्रता आन्दोलन के तीन महात्माओं का चित्र के साथ वर्णन

## Physics IX

Date of submission: 5 June 2015

## Sanskrit IX

**Date of submission: 5 June 2015 (Shift-I)**

Prepare a chart based on any one of the following topics.

1)वर्णमाला 2) स्वरभेदा: 3)व्यञ्जन भेदा:

4) वर्णोच्चारणस्थानम् 5) शब्दरुपाणि अर्थै: सह |

## Social Science IX A,B,C,D

**Date of submission: 5 June 2015**

1 PROJECT-“DISASTER MANAGEMENT”

(a) CLASS IX

(b) SELECT ONE THEME FROM DISASTER MANAGEMENT TEXT

BOOK THE PROJECT SHOULD BE OF 15-20 PAGES

(c) INCLUDE DATA ,DIAGRAM,MAP,PICTURES ETC…

2.MAP WORK

(a)INDIA- STATES AND UNION TERRITORIES

(b)INDIA-STANDARD MERRIDIAN,PALK STRAIT,TROPIC OF CANCER,STATES THROUGH WHICH TROPIC OF CANCER PASSES THROUGH

(c)ASIA POLITICAL-INDIA AND NEIGH BOURING COUNTRIES

## Hindi VI-X

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## English IX A,B,C,D

**Date of submission: 5 June 2015**

I) Read any one of the novels of Sudha Murthy and prepare a book review.

II) Read the first 10 chapters of Three Men In a Boat and write their summary.

## Maths IX A,B,C,D

**Date of submission date : 05.06.2015**

1) Are the following statments true or false ? Give reasons for your answers.

i) Every whole number is a natural number

ii) Every integer is a rational number

iii) Every rational number is an integer

2) Find five rational numbers between 1 and 2

3) Is zero a rational number? Can you write it in the form p/q , where p and q are integers and q ≠

0?

4) Find six rational numbers between 3 and 4

5) Find five rational numbers between 3/5 and 4/5

6) State whether the following statements are true or false. Give reasons for your answers

i) Every natural number is a whole number.

ii) Every integer is a whole number

iii) Every rational number is a whole number

7) Locate √2 on the number line

8) Locate √3 on the number line

9) State whether the following statements are true or false. Justify your answers.

i) Every rational number is a real number

ii) Every point on the number line is of the √m, where m is a natural number

iii) Every real number is an irrational number

10) Are the square roots of all positive integers irrational ? If not, give an example of the square

root of a number that is a rational number.

11) Show how √5 can be repesented in the number line

12) Classroom activity ( Constructing a ‘square root spiral’) : Take a large sheet of paper and construct the ‘square root spiral’ in the following fashion. Start with a point O and draw a line segmant OP1 of unit length. Draw a line segment P1P2 perpendicular to OP1 of unit length . Now draw a line segment P 2 P 3 perpendicular to OP2 . Then draw a line segment P3 P4 perpendicular to

OP3. Continuing in this manner, you can get the the line segment Pn-1 Pn by drawing a line segment of unit length perpendicular to OP n-1 . In this manner, you will have created the points P2, P3 ,….Pn,…. .., and joined them to create a beautiful spiral depicting √2,√3,√4,…….

## Science IX A,B,C,D

**Date of submission: 2 Jan., 2015**

1.Exercises:

a.page no: 97 Q . 1,2,3,4,5,6

b.page no:44 Q. 4,5,6,7,8,9,10

c.page no: 159 Q.13,14,15,16,17,18,19,20