Chemistry
Class 9 Chemistry Date: - 29-09-20 Topic: Structure of the Atom Electronic structure of the first twenty elements in the Periodic Table
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Chemistry
Class 9 Chemistry Date : 28-9-20 Due Date :30-9-20 Topic: The Structure of Atom Answer the following questions: Describe Rutherford’s Gold foil experiment with the help of a labelled diagram:
Chemistry
Class 9 Chemistry Date : 25-9-20 Due Date :26-9-20 Topic: The Structure of Atom Answer the following questions: 1. Atoms are neutral in electric charge. How can they be neutral if they contain negatively charged electrons? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2. How is our modern understanding of atomic structure different from ...
Mathematics
Class 9 Mathematics Date: 23/09/2020 Due Date: 24/09/2020 Topic: Surface Area and Volume Solve Exercise 13.1 and Exercise 13.2 of Ncert textbook.
Chemistry
Date: 22-9-20 Due Date: 24-9-20 Topic: Structure of the atom Answer the following: 1. Label the structure of an atom: 2. Describe the Dalton’s theory. ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________...
Investiture Ceremony Session 2020-21
Delhi Public School, Amravati Session 2020-21 Circular for the Students of Class VII to IX regarding Investiture Ceremony Oath to be swear in I___________________________________HAVING BEEN CHOSEN THE HEAD BOY/HEAD GIRL, SPORTS CAPTAIN (BOY/GIRL), CULTURAL CAPTAIN (BOY/GIRL), HOUSE CAPTAIN (BOY/GIRL), PREFECT OF DELHI PUBLIC SCHOOL, AMRAVATI, SOLEMNLY PLEDGE BEFORE GOD AT THIS ASSEMBLY TO DO MY VERY BEST TO UPHOLD THE RULES OF THE SCHOOL, TO COOPERATE WITH THE AUTHORITIES AND TO LEAD ALL MY FELLOW STUDENTS ON THE PATH OF SACRED DUTY. I ALSO PROMISE TO LIVE UP TO OUR SCHOOL MISSION “DELHI PUBLIC SCHOOL, AMRAVATI SHELL PROVIDE A SAFE AND JOYFULL LEARNING ENVEROMENT WHERE STUDENTS ARE EMPOWERED TO DEVELOP INTERNATIONAL AWARENESS, SELF SUFFICIENCY AND A SENSE OF PRIDE IN THEIR ACADEMIC AND PERSONAL SUCCESS” SO HELP ME GOD.
Class 9 English Grammar Date: 31-08-2020 Due Date: 01-09-2020 Topic: Subject Verb Concord (Editing) Question 1. In each of the following sentences, there is an error. Find out the error and provide the correction. First one has been done as an example. (i) Error Correction are is The quality of the apples are not good Many of them is rotten. (a) _______________ _______________ Cause of worries are that the children (b) _______________ _______________ does not know the fact. (c) _______________ _______________ (ii) Error Correction are is Ea...
Class 9 Mathematics Date : 02/09/2020 Due Date : 03/09/2020 Topic: Heron’s Formula Q1) In a triangle ABC, AB = 15cm, BC = 13cm and AC = 14cm. Find the area of triangle ABC and hence its altitude on AC. Q2) Find the area of the quadrilateral ABCD in which AB = 3 cm, BC = 4 cm, CD = 4 cm, DA = 5 cm and AC = 5 cm. Q3) The sides of a quadrilateral field, taken in order are 26 m, 27 m, 7 m, 24 m respectively. The angle contained by the last two sides is a right angle. Find its area. Q4) A park in the shape of a quadrilateral ABCD, has ∠ C = 90 0 , AB = 9 m, BC = 12 m, CD = 5 m, AD = 8 m. How much area does it occupy? Q5) Two parallel sides of a trapezium are 60 m and 77 m and the other ...
Class 9 Biology Da ted -24/ 0 8/20 Due date- 27/8/20 Topic- Fundamental basic unit of life Q.1) W ri te the difference between Plant cell and Animal cells. Q.2) Describe the microscopic structure of the cell. Q.3) What is a cell wall and how it is formed? Q.4) why were the scientist not be able to observe the cell organelles before 1940? Q.5) There would be no plant life if chloro...
Class 9 Chemistry Dated: 29-8-20 Due Date:31-8-20 Topic: Is Matter around us Pure Fractional Distillation: When a _________ turns to a gas it is called ____________, the ____________where all of a liquid will turn to gas is called the boiling point. Different liquids have different___________. ____________liquids by their boiling point is called__________________________. This diagram represents a fractional distillation column 1.What is the raw material that goes into the column? ________________________________________________ 2.Where is the hottest part? ________________________________________________ 3. Where is the coldest part? ________________________________...
Class 9 Chemistry Dated : 27-8-20 Due Date :29-8-20 Topic: Is Matter around us Pure Q1. Complete the following: What is fractional distillation? Fractional distillation is the process used to separate two or _____________liquids based upon differences in boiling point. Example: Ethanol has a boiling point of_____________. Water has a boiling point of_____________. Both water and ethanol are infinitely miscible in one another. This means the resulting mixture looks like a___________ liquid no matter how much ethanol or water is added. Water and ethanol can be separated by the process of fractional distillation. Q2. Fractional distillation is suitable for separation...