Read and download the CBSE Class 7 Science Changes and Reactions Assignment for the 2025-26 academic session. We have provided comprehensive Class 7 Science school assignments that have important solved questions and answers for Chapter 6 Physical And Chemical Changes. These resources have been carefuly prepared by expert teachers as per the latest NCERT, CBSE, and KVS syllabus guidelines.
Solved Assignment for Class 7 Science Chapter 6 Physical And Chemical Changes
Practicing these Class 7 Science problems daily is must to improve your conceptual understanding and score better marks in school examinations. These printable assignments are a perfect assessment tool for Chapter 6 Physical And Chemical Changes, covering both basic and advanced level questions to help you get more marks in exams.
Chapter 6 Physical And Chemical Changes Class 7 Solved Questions and Answers
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
Important Practice Resources for Class 7 Science
CBSE Class 7 Science Chapter 6 Physical And Chemical Changes Assignment
Access the latest Chapter 6 Physical And Chemical Changes assignments designed as per the current CBSE syllabus for Class 7. We have included all question types, including MCQs, short answer questions, and long-form problems relating to Chapter 6 Physical And Chemical Changes. You can easily download these assignments in PDF format for free. Our expert teachers have carefully looked at previous year exam patterns and have made sure that these questions help you prepare properly for your upcoming school tests.
Benefits of solving Assignments for Chapter 6 Physical And Chemical Changes
Practicing these Class 7 Science assignments has many advantages for you:
- Better Exam Scores: Regular practice will help you to understand Chapter 6 Physical And Chemical Changes properly and you will be able to answer exam questions correctly.
- Latest Exam Pattern: All questions are aligned as per the latest CBSE sample papers and marking schemes.
- Huge Variety of Questions: These Chapter 6 Physical And Chemical Changes sets include Case Studies, objective questions, and various descriptive problems with answers.
- Time Management: Solving these Chapter 6 Physical And Chemical Changes test papers daily will improve your speed and accuracy.
How to solve Science Chapter 6 Physical And Chemical Changes Assignments effectively?
- Read the Chapter First: Start with the NCERT book for Class 7 Science before attempting the assignment.
- Self-Assessment: Try solving the Chapter 6 Physical And Chemical Changes questions by yourself and then check the solutions provided by us.
- Use Supporting Material: Refer to our Revision Notes and Class 7 worksheets if you get stuck on any topic.
- Track Mistakes: Maintain a notebook for tricky concepts and revise them using our online MCQ tests.
Best Practices for Class 7 Science Preparation
For the best results, solve one assignment for Chapter 6 Physical And Chemical Changes on daily basis. Using a timer while practicing will further improve your problem-solving skills and prepare you for the actual CBSE exam.
You can download free PDF assignments for Class 7 Science Chapter Chapter 6 Physical And Chemical Changes from StudiesToday.com. These practice sheets have been updated for the 2025-26 session covering all concepts from latest NCERT textbook.
Yes, our teachers have given solutions for all questions in the Class 7 Science Chapter Chapter 6 Physical And Chemical Changes assignments. This will help you to understand step-by-step methodology to get full marks in school tests and exams.
Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Chapter Chapter 6 Physical And Chemical Changes.
Practicing topicw wise assignments will help Class 7 students understand every sub-topic of Chapter Chapter 6 Physical And Chemical Changes. Daily practice will improve speed, accuracy and answering competency-based questions.
Yes, all printable assignments for Class 7 Science Chapter Chapter 6 Physical And Chemical Changes are available for free download in mobile-friendly PDF format.