Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7th
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Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide chapter 4 - Chemistry in Daily Life [Latest edition]

Chapters

Class 7th Science Term 3 Answers Guide - Shaalaa.com
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Chapter 4: Chemistry in Daily Life

Evaluation
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Evaluation [Page 78]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 78]

Choose the correct answers

Evaluation | Q I. 1. | Page 78

A drug effective in the treatment of pneumonia, and bronchitis, is______.

  • Streptomycin

  • Chloramphenicol

  • Penicillin

  • Sulphaguanidine

Evaluation | Q I. 2. | Page 78

Aspirin is ______.

  • Antibiotic

  • Antipyretic

  • Sedative

  • Psychedelic

Evaluation | Q I. 3. | Page 78

______ are that neutralize stomach acid.

  • Antacid

  • Antipyretic

  • Analgesic

  • Antihistanics

Evaluation | Q I. 4. | Page 78

The lowest temperature at which a substance catch the fire is called its ______.

  • Boiling point

  • Melting point

  • Critical temperature

  • Ignition temperature. 

Evaluation | Q I. 5. | Page 78

Which is the hottest part in the flame of candle ______.

  • Blue

  • Yellow

  • Black

  • Way part

Evaluation [Pages 78 - 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Pages 78 - 79]

Fill in the blanks.

Evaluation | Q II. 1. | Page 78

Penicillin was first discovered by______.

Evaluation | Q II. 2. | Page 78

World ORS Day is ______.

Evaluation | Q II. 3. | Page 78

Combustion is a chemical reaction in which and substance react with ______.

Evaluation | Q II. 4. | Page 78

In the presence of water, the ignition temperature of paper is ______.

Evaluation | Q II. 5. | Page 79

Fire produced by oil cannot be controlled by ______.

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Evaluation | Q III. 1. | Page 79

True or False – If False give the correct answer

Antibiotics does work for viruses like cold and

  • True

  • False

Evaluation | Q III. 2. | Page 79

True or False – If False give the correct answer

Analgesics are the substances that lower the temperature during fever

  • True

  • False

Evaluation | Q III. 3. | Page 79

True or False – If False give the correct answer

All fuels form flame.

  • True

  • False

Evaluation | Q III. 4. | Page 79

True or False – If False give the correct answer

Oxygen is necessary for combustion

  • True

  • False

Evaluation | Q III. 5. | Page 79

True or False – If False give the correct answer

Burning wood and coal causes pollution of air.

  • True

  • False

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Evaluation | Q IV. | Page 79

Match the following

1. Antipyretic reduce pain
2. Analgesic reduce body temperature
3. Antacid spontaneous combustion
4. Phosphorus ORS Solution
5. Carbon – di – oxide leads to respiratory problem.
Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Analogy

Evaluation | Q V. 1. | Page 79

Inner zone of flame : :______, outer zone of flame : :______

Evaluation | Q V. 2. | Page 79

Tincture: :______, cistamine : :______.

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Very short answer

Evaluation | Q VI. 1. | Page 79

First viral disease detected in human being was :______

  • Yellow fever

  • dengue fever

Evaluation | Q VI. 2. | Page 79

______,______,______ are called green house gases.

Evaluation | Q VI. 3. | Page 79

Name a substance which can be used as an antiseptic as well as disinfectant?

Evaluation | Q VI. 4. | Page 79

What are the main constituents of dettol?

Evaluation | Q VI. 5. | Page 79

Name the unit in which the calorific value of a fuel is expressed?

Evaluation | Q VI. 6. | Page 79

How many types of combustion are there?

Evaluation | Q VI. 7. | Page 79

What are the essential requirements for producing fire?

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Short Answer Questions

Evaluation | Q VII. 1. | Page 79

Why should not medicines be taken without consulting doctors?

Evaluation | Q VII. 2. | Page 79

Why do antiseptics differ from disinfectants? Give one example of each.

Evaluation | Q VII. 3. | Page 79

What is ignition temperature?

Evaluation | Q VII. 4. | Page 79

If 4.5kg of fuel is completely burnt and amount of heat produced stands measured at 1, 80,000 KJ what is the calorific value.

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Answer in Detail.

Evaluation | Q VIII. 1. | Page 79

Explain briefly about antibiotic and analgesic?

Evaluation | Q VIII. 2. | Page 79

Make labeled diagram of a candle flame.

Evaluation [Page 79]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide Chapter 4 Chemistry in Daily LifeEvaluation [Page 79]

Evaluation | Q IX. | Page 79

Picture based question

Arul and Aakash were doing an experiment in which water was to be heated in a beaker. Arul kept the beaker near the wick in the yellow part of candle flame. Aakash kept the beaker in the outer most part to the flame. Whose water will get heated in a shorter time?

Chapter 4: Chemistry in Daily Life

Evaluation
Class 7th Science Term 3 Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide chapter 4 - Chemistry in Daily Life

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Science Term 3 Answers Guide chapter 4 (Chemistry in Daily Life) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Class 7th Science Term 3 Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 7th Science Term 3 Answers Guide chapter 4 Chemistry in Daily Life are Combustion, Pharmaceutical Chemistry, Oral Rehydration Solution (ORS), Types of Combustion, Antacid, Antibiotics, Analgesics, Antipyretic, Antiseptics and Disinfectants, Antihistamine, Flame, How Do We Control Fire?, Fire Extinguisher.

Using Tamil Nadu Board Samacheer Kalvi Class 7th solutions Chemistry in Daily Life exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 7th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

Get the free view of chapter 4 Chemistry in Daily Life Class 7th extra questions for Class 7th Science Term 3 Answers Guide and can use Shaalaa.com to keep it handy for your exam preparation

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