class 7 physical and chemical changes

Rusting of Iron
https://drive.google.com/file/d/1MqLoBwFHjKMK9VyL_3McTATuLOSEhvyT/view?usp=drivesdk

Comments

Post a Comment

Popular posts from this blog

GRADE-7 A,B,C ENGLISH

  Ch-1 The Lumber room   Date -6-4-21 Topics taught - Reading and explanation of the  the chapter T.B Pg no. 1&2 and difficult word meanings Home work -   Read the chapter and find the meanings of new words. Hastily Wholesome Goblin Hypocrisies Witty Date 7-4-21 Topics taught-  Reading and explanation of  chapter T.B pg no. 3   Note book work in class  Date:-7-4-21 Day:-Wednesday                                                                                                    C.W L-1 The Lumber Room New words                                                    ...
Read more

2021-22 GRD 7 CH MOTION AND TIME (NOTEBOOK AND WORKBOOK EXERCISE)

Image
  Diagnostic test-google form Kwl chart NEW WORDS 1.     suspended 2.     bob 3.     uniform 4.     periodic 5.     odometer   NEW TERMS Unit: it is a standard segment in which a quantity is measured Bob: a metallic ball that is hung to one end of a pendulum Suspended: hung from above   Answer the following questions in one word or a sentence. a.     When do we state that an object is at rest? ANS. An object is said to be at rest, when it does not change its position with time or with respect to its surrounding b.     Give atleast two examples of early clocks which are equally effective indoors as well as outdoors. ANS. Sun dials and Water clocks c.     What is the working principle of clepsydra? ANS. To measure the time, it uses the fact that equal amounts of water take the same interval of time to flow through an...
Read more