Chapters
Chapter 2: Motions of the Earth
Chapter 3: The Earth and its Living World
Chapter 4: Environmental Balance
Chapter 5: Family Values
Chapter 6: Rules Are for Everyone
Chapter 7: Let us Solve our own Problems
Chapter 8: Public Facilities and My School
Chapter 9: Maps - our Companions
Chapter 10: Getting to Know India
Chapter 11: Our Home and Environment
Chapter 12: Food for All
Chapter 13: Methods of Preserving Food
Chapter 14: Transport
Chapter 15: Communication and Mass Media
Chapter 16: Water
Chapter 17: Clothes - our Necessity
Chapter 18: The Environment and Us
Chapter 19: Constituents of Food
Chapter 20: Our Emotional World
Chapter 21: Busy at Work - our Internal Organs
Chapter 22: Growth and Personality Development
Chapter 23: Infectious Diseases and how to Prevent them
Chapter 24: Substances, Objects and Energy
Chapter 25: Community Health and Hygiene
Chapter 21: Busy at Work - our Internal Organs
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Can you recall ? [Page 107]
Take a large sheet of thick paper, about the height of a child in the class. Put it on the wall as shown in the picture and secure it with tapes. Ask one student to stand against it and another to draw the outline of the body. Now get other students to point out the right places of the following organs within the outline - the brain, lungs, heart, and stomach. Now recall the following details about each of the organs. (1) In which cavity of the body is it situated? (2) What is its function? (3) Which are the bones that protect it?
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Can you tell ? [Page 107]
What bodily needs or sensations do you become aware of even though you are reading a book?
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Can you tell ? [Page 111]
Name the organs that bring about respiration.
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Use your brain power ! [Page 111]
Name the organs of the digestive system
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Can you tell ? [Page 111]
How do we know that we are hungry and that we should now eat?
How do the salivary glands come to know that there is food in the mouth and it is time to secrete saliva?
What makes respiration and blood circulation go on all the time, and the processes of digestion happen at the right time?
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Use your brain power ! [Page 113]
Which systems work together to provide the body with energy?
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard Chapter 21 Busy at Work - our Internal Organs Exercise [Page 114]
What’s the solution?
A person has fainted and a crowd of people has surrounded him.
Why do we sometimes choke suddenly while eating?
How is the air that we inhale purified in our body?
Fill in the blank.
________________ gas is transported to all parts of the body.
Fill in the blank.
The stomach is like a ________.
Match the following.
| Group A | Group B |
| (1) Lungs | (a) Circulation |
| (2) Stomach | (b) Respiration |
| (3) Heart | (c) Co-ordination |
| (4) Brain | (d) Digestion |
Answer the following question
Name the systems that carry out the different functions of the body.
Answer the following question
Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
Answer the following question
Why do we call saliva a digestive juice?
Choose the appropriate word from the brackets.
Respiration takes place because of its up and down movement.
circulation
trachea
diaphragm
Choose the appropriate word from the brackets.
The process of keeping the blood flowing continuously throughout the body.
circulation
trachea
diaphragm
Choose the appropriate word from the brackets.
Air that enters through the nose passes into this tube.
circulation
trachea
diaphragm
Chapter 21: Busy at Work - our Internal Organs
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard chapter 21 - Busy at Work - our Internal Organs
Balbharati solutions for Environmental Studies 1 Maharashtra State Board 5th Standard chapter 21 (Busy at Work - our Internal Organs) 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 Maharashtra State Board Environmental Studies 1 Maharashtra State Board 5th Standard solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Environmental Studies 1 Maharashtra State Board 5th Standard chapter 21 Busy at Work - our Internal Organs are Introduction of Busy at Work - Our Internal Organs, Concept of Respiration, The Diaphragm and Its Movement, Exchange of Gases, The Alimentary Canal, Energy for the Body, Blood Circulatory System, Concept of Nervous System, Human Nervous System, Other Systems in the Body, The Digestive System in Human, The Digestive System in Human.
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