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Chapters
2: Plants: Structure and Function
3: Properties of Natural Resources
4: Nutrition in Living Organisms
5: Food Safety
6: Measurement of Physical Quantities
7: Motion, Force and Work
8: Static Electricity
9: Heat
10: Disaster Management
11: Cell Structure and Micro-organisms
12: The Muscular System and Digestive System in Human Beings
▶ 13: Changes – Physical and Chemical
14: Elements, Compounds and Mixtures
15: Materials We Use
16: Natural Resources
17: Effects of Light
18: Sound: Production of Sound
19: Properties of a Magnetic Field
20: In the World of Stars
![Balbharati solutions for General Science [English] 7 Standard chapter 13 - Changes – Physical and Chemical - Shaalaa.com](/images/general-science-english-7-standard_6:24ceb46b35104a7f823bc17a7cebb5ec.JPG "Balbharati solutions for General Science [English] 7 Standard chapter 13 - Changes – Physical and Chemical")
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Solutions for Chapter 13: Changes – Physical and Chemical
Below listed, you can find solutions for Chapter 13 of Maharashtra State Board Balbharati for General Science [English] 7 Standard.
Balbharati solutions for General Science [English] 7 Standard 13 Changes – Physical and Chemical Exercise [Page 91]
Distinguish between the following.
Physical change and chemical change
Distinguish between the following.
Periodic change and non-periodic change
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Conversion of milk into yogurt.
Under which different types can the following changes be classified?
Bursting of a cracker.
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Under which different types can the following changes be classified?
Revolution of the earth around the sun.
Under which different types can the following changes be classified?
Stretching of a spring.
Give reason.
While purchasing canned food, its expiry date should be checked.
Give reason.
An iron article should be given a coat of paint
Give reason.
A wooden article should be polished.
Give reason.
Copper and brass utensils should be tinned.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
What will you take into account while identifying the following?
A physical change in a substance.
What will you take into account while identifying the following?
A chemical change in a substance.
Read the paragraph and note down the various types of changes it mentions.
It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil, and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
Solutions for 13: Changes – Physical and Chemical
Balbharati solutions for General Science [English] 7 Standard chapter 13 - Changes – Physical and Chemical
Shaalaa.com has the Maharashtra State Board Mathematics General Science [English] 7 Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Balbharati solutions for Mathematics General Science [English] 7 Standard Maharashtra State Board 13 (Changes – Physical and Chemical) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in General Science [English] 7 Standard chapter 13 Changes – Physical and Chemical are Changes-Physical and Chemical, Classification of Change: Physical Changes, Classification of Change: Natural and Man-made Changes, Classification of Change: Harmful and Useful Changes, Classification of Change: Slow and Fast Changes, Classification of Change: Reversible and Irreversible Changes, Classification of Change: Periodic and Non-periodic Changes, Corrosion of Metals, Classification of Change: Chemical Changes.
Using Balbharati General Science [English] 7 Standard solutions Changes – Physical and Chemical exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board General Science [English] 7 Standard students prefer Balbharati Textbook Solutions to score more in exams.
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