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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 15 - Materials We Use - Shaalaa.com](/images/general-science-english-7-standard_6:24ceb46b35104a7f823bc17a7cebb5ec.JPG "Balbharati solutions for General Science [English] 7 Standard chapter 15 - Materials We Use")
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Solutions for Chapter 15: Materials We Use
Below listed, you can find solutions for Chapter 15 of Maharashtra State Board Balbharati for General Science [English] 7 Standard.
Balbharati solutions for General Science [English] 7 Standard 15 Materials We Use Exercise [Page 103]
The substance that helps water to remove dirt from the surface of materials is called ______.
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
Fluoride is used in toothpaste to prevent ______.
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
Soap is a salt of ______ and sodium hydroxide.
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
Synthetic detergents can be used in ______ water as well.
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
For construction purposes ______ cement is the most commonly used cement.
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
How does the use of detergent help to clean soiled clothes?
How will you check with the help of soap powder whether water is hard?
What are the important ingredients of toothpaste, and what is the function of each?
What are the ingredients of cement?
What will happen if cement is not used in making concrete?
Make a list of detergents that you use.
What should be expected from detergent for delicate garments?
What is meant by 'surface activity'?
Write an answer to the following question.
Name three chemicals responsible for the surface activity of various detergents.
What are the similarities between Natural detergents and man-made detergents?
What are the differences between Soap and synthetic detergent?
What are the similarities between Soap and synthetic detergent.
What are the differences between Bath soap and soap for washing clothes?
What are the differences between Modern cement and ancient cement?
Explain why soap cannot be used in hard water.
Explain why oil does not mix in water. However, oil and water become homogeneous if a sufficient quantity of detergent is added.
Explain why synthetic detergents are superior to soap.
Explain why often coloured spots are formed on clothes during washing.
Explain why tobacco masher should not be used for cleaning teeth.
Solutions for 15: Materials We Use
Balbharati solutions for General Science [English] 7 Standard chapter 15 - Materials We Use
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 15 (Materials We Use) 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.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in General Science [English] 7 Standard chapter 15 Materials We Use are Toothpaste, Detergents, Soap, Cement, Materials We Use.
Using Balbharati General Science [English] 7 Standard solutions Materials We Use 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.
Get the free view of Chapter 15, Materials We Use General Science [English] 7 Standard additional questions for Mathematics General Science [English] 7 Standard Maharashtra State Board, and you can use Shaalaa.com to keep it handy for your exam preparation.
