Read and download free pdf of CBSE Class 7 Science Changes and Reactions Assignment. Get printable school Assignments for Class 7 Science. Class 7 students should practise questions and answers given here for Chapter 6 Physical And Chemical Changes Science in Class 7 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 7 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 7 Science Chapter 6 Physical And Chemical Changes
Class 7 Science students should refer to the following printable assignment in Pdf for Chapter 6 Physical And Chemical Changes in Class 7. This test paper with questions and answers for Class 7 Science will be very useful for exams and help you to score good marks
Chapter 6 Physical And Chemical Changes Class 7 Science Assignment
I. Choose the correct answer:
1) An acid reacts with a base to form a salt & water. This type of reaction is called
a) Combination reaction b) Neutralization reaction
c) Displacement reaction d) Decomposition reaction
2) Curdling of milk is a
a) Chemical change b) Physical change c) Both (a) & (b) d) None of these
3) Rusting takes place in
a) Air-free moisture b) Moisture-free air c) Moist air d) None of these
4) The digestion of food is a
a) Physical change b) Chemical change c) Both (a) & (b) d) None of these
II. Fill in the blanks.
1) Melting of wax is a _______ change.
2) Cooking of food is a _______ change.
3) In a ___________ reaction, two or more reactants add up to form a product.
4) The forming of rust is called _______.
5) Hydrocarbons are compounds made of _____ and _______.
III. State true or false.
1) When a substance is burnt only light is emitted.
2) Magnesium combines with oxygen of air to form magnesium oxide.
3) New substances are formed in a physical change.
4) The mixture of water and alcohol forms a heterogeneous mixture.
5) Petrol, diesel and LPG contain mixtures of hydrocarbons.
IV. Match the following.
A B
1) Electromagnets a) baking soda
2) Nichrome b) steel
3) sodium hydrogencarbonate c) heating element
4) metallic solids d) red-brown solid
5) rust e) washing machines
V. Define.
1) Physical change 2) Chemical change 3) Melting 4) Freezing
5) Vaporisation 6) Condensation 7) Rusting 8) Combination reaction
9) Decomposition reaction 10) Displacement reaction 11) Neutralization reaction
VI. Give reasons
1) Freshly cut apple or brinjal turns brown.
2) Burning of magnesium ribbon is considered a chemical change
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CBSE Class 7 Science Chapter 6 Physical And Chemical Changes Assignment
We hope you liked the above assignment for Chapter 6 Physical And Chemical Changes which has been designed as per the latest syllabus for Class 7 Science released by CBSE. Students of Class 7 should download and practice the above Assignments for Class 7 Science regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 7 Science practice sheet in Pdf. All questions have been designed for Science by looking into the pattern of problems asked in previous year examinations.
Assignment for Science CBSE Class 7 Chapter 6 Physical And Chemical Changes
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Chapter 6 Physical And Chemical Changes Assignment Science CBSE Class 7
All questions and their answers for the assignment given above for Class 7 Science have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 7 can rest assured that the best teachers have designed the questions of Science so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 7 Science have also been given in the worksheets and assignments for regular use. All study material for Class 7 Science students have been given on studiestoday.
Chapter 6 Physical And Chemical Changes Assignment CBSE Class 7 Science
Regular assignment practice helps to get a more comprehensive understanding of Chapter 6 Physical And Chemical Changes concepts. Assignments play a crucial role in understanding Chapter 6 Physical And Chemical Changes in CBSE Class 7. Students can download all the assignments of the same chapter in Class 7 Science in Pdf format. You can print them or read them online on your computer or mobile.
CBSE Science Class 7 Chapter 6 Physical And Chemical Changes Assignment
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