CBSE Class 7 Science Physical And Chemical Change Worksheet Set B

Download printable Science Class 7 Worksheets in pdf format, CBSE Class 7 Science Physical And Chemical Change Worksheet Set B has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 7 Assignments and practice them daily to get better marks in tests and exams for Grade 7. Free chapter wise worksheets with answers have been designed by Standard 7 teachers as per latest examination pattern

TOPIC: PHYSICAL AND CHEMICAL CHANGES

ANSWER THE FOLLOWING
 
Q1. Classify the following changes into physical and chemical changes
 
(i) Galvanization of Iron
 
(ii) Explosion of crackers
 
(iii) Decaying of organic matter
 
(iv) Breaking of glass
 
(v) Formation of clouds
 
Q2. A slice of apple acquires a brown colour, if it is not consumed immediately. Why?
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
Q3. Why is burning of magnesium ribbon in air a chemical change?
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
Q4. What kind of change is shown by the tearing of paper? How is it different from burning of paper?
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
Q5. Explain the following
 
(a) Lime water turns milky on passing carbon dioxide gas into it.
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
(b) Bubbles are produced, when acetic acid is added to a solution of sodium bicarbonate.
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
Q6. A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about one hour.
 
(a) What change do you expect?
 
 
----------------------------------------------------------------------------------------------------------
 
(b) What type of change is this?
 
----------------------------------------------------------------------------------------------------------
 
(c) Write a word equation for the above reaction.
 
----------------------------------------------------------------------------------------------------------
 
Q7. Write whether magnetisation of steel is a physical change or not? How is it different from magnetisation of iron?
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------
 
Q8. How painting of an iron article prevents it from rusting?
 
----------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------


Please click on below link to download CBSE Class 7 Science Physical And Chemical Change Worksheet Set B

Tags: 

 


Click to View or Download pdf file
Click for more Science Study Material
CBSE Class 7 Science Revision Worksheet
CBSE Class 7 Science Electric Current And Its Effects Worksheet Set C
CBSE Class 7 Science Worksheet Set F
CBSE Class 7 Science Motion and Time Worksheet Set A
CBSE Class 7 Science Nutrition in plants Worksheet Set D
CBSE Class 7 Science Weather Climate and Adaptions of Animals to Climate Worksheet Set A
CBSE Class 7 Science Electric Current and Its Effects Worksheet Set A
CBSE Class 7 Science Light Worksheet Set D
CBSE Class 7 Science Respiration in Organisms Worksheet Set A
CBSE Class 7 Science Waste water Set B
CBSE Class 7 Science Nutrition in Plants Worksheet Set A
CBSE Class 7 Science Fibre to fabric Set B
CBSE Class 7 Science Worksheet Set G Solved
CBSE Class 7 Science Nutrition in Animals Worksheet Set A
CBSE Class 7 Science Physical And Chemical Change Worksheet Set B
CBSE Class 7 Science Winds Storms and Cyclones Worksheet Set A
CBSE Class 7 Science Fibre to Fabric Worksheet Set A
CBSE Class 7 Science motion And Time Worksheet Set B
CBSE Class 7 Science Water A Precious Resource Worksheet
CBSE Class 7 Science Soil Worksheet Set A
CBSE Class 7 Science Worksheet Set A
CBSE Class 7 Science Fibre to fabric Set C
CBSE Class 7 Science Worksheet Set H Solved
CBSE Class 7 Science Nutrition in Animals Worksheet Set B
CBSE Class 7 Science Physical And Chemical Change Worksheet Set C
CBSE Class 7 Science Acid Bases And Salts Worksheet Set B
CBSE Class 7 Science Forests Our Lifeline Worksheet Set A
CBSE Class 7 Science motion And Time Worksheet Set C
CBSE Class 7 Science Winds Storms And Cyclones Worksheet Set B
CBSE Class 7 Science Transportation in Animals and Plants Worksheet Set A
CBSE Class 7 Science Worksheet Set B
CBSE Class 7 Science Heat Worksheet Set B
CBSE Class 7 Science Worksheet Set I Solved
CBSE Class 7 Science Nutrition in Plants Worksheet Set A
CBSE Class 7 Science Reproduction in plants Worksheet Set B
CBSE Class 7 Science Acid Bases And Salts Worksheet Set C
CBSE Class 7 Science Heat Worksheet Set A
CBSE Class 7 Science Nutrition in Animals Worksheet Set C
CBSE Class 7 Science Transportation in Animals and Plants Worksheet Set B
CBSE Class 7 Science Worksheet Set C
CBSE Class 7 Science Heat Worksheet Set C
CBSE Class 7 Science Worksheet Set J
CBSE Class 7 Science Nutrition in Plants Worksheet Set B
CBSE Class 7 Science Reproduction in plants Worksheet Set C
CBSE Class 7 Science Acid Bases And Salts Worksheet Set D
CBSE Class 7 Science Light Worksheet Set A
CBSE Class 7 Science Nutrition in Animals Worksheet Set D
CBSE Class 7 Science Wastewater Story Worksheet Set A
CBSE Class 7 Science Worksheet Set D
CBSE Class 7 Science Heat Worksheet Set D
CBSE Class 7 Science Worksheet Set K
CBSE Class 7 Science Physical and Chemical Changes Worksheet Set A
CBSE Class 7 Science Transportation In Animals And Plants Worksheet Set C
CBSE Class 7 Science Electric Current And Its Effects Worksheet Set B
CBSE Class 7 Science Worksheet Set E Solved
CBSE Class 7 Science Light Worksheet Set B
CBSE Class 7 Science Nutrition in plants Worksheet Set C
CBSE Class 7 Science Water Worksheet Set A
CBSE Class 7 Science Acid Bases and Salts Worksheet Set A
CBSE Class 7 Science Light Worksheet Set C
CBSE Class 7 Science Worksheet Set M
CBSE Class 7 Science Reproduction in Plants Worksheet Set A
CBSE Class 7 Science Transportation In Animals And Plants Worksheet Set D

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Score well in Class 12 English Boards Exam

12th Board exams are an important part of students' lives. The marks obtained in the board exam decide the college in which one can study. In class 12 the syllabus of each and every subject increases vastly and it is difficult to cover up every point. In English also...

Moderation of Marks Class 11 and 12 Board Exams

The portal for moderation and finalization of results for Class-12 is being opened from 16.07.2021 to 22.07.2021. As Board has to declare the result latest by 31.07.2021, schools have been requested to follow the schedule strictly and complete the moderation within...

CBSE Class 10 Revised Syllabus

Last year CBSE had to reduce the syllabus because of the pandemic situation but it was not very effective because there were no examinations. This year to avoid any confusion and conflict, CBSE has decided to reduce the syllabus into term 1 and term 2. 50 percent of...

CBSE Board Examination Scheme of Assessment 2021 2022

A. Academic session to be divided into 2 Terms with approximately 50% syllabus in each term: The syllabus for the Academic session 2021-22 will be divided into 2 terms by following a systematic approach by looking into the interconnectivity of concepts and topics by...

MCQ Question based CBSE examination

For 2021-22 CBSE has launched MCQ question-based examination for Term 1 & Term 2 board examinations. The entire syllabus has been divided into two parts each including 50% of the entire syllabus. To score well, students must practice as per the new CBSE term-wise...

How To Solve Unseen Passages In English

Unseen passages may contain one or many paragraphs. This is one of the important yet easy parts for a student to get marks. Students should thoroughly study and understand the passage to answer the related questions. The unseen passages are there just to test the...

×
Studies Today