KSEEB Solutions for Class 5 EVS Chapter 6 Air

Students can Download EVS Chapter 6 Air Questions and Answers, Summary, Notes Pdf, KSEEB Solutions for Class 5 EVS helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.

Karnataka State Board Class 5 EVS Chapter 6 Air

Class 5 EVS Air Text Book Questions and Answers

Question 1.
Air is not visible but its presence can be felt. How do you know that air is in your surroundings? Write three experiences.
Answer:

1. While walking an street, sometimes we feel that wind is pushing us,
2. Cloths hanged to dry them will fly here and there when wind blows.
3. Kites fly up in the sky.

Question 2.
Study the composition of air shown in the picture and answer the following questions

Answer:

1. Which gas is the major component of air?
   Nitrogen ( 78% )
2. What is the percentage of gas is present in air which is required for our breathing?
   Oxygen (21%)
3. What is the normal percentage of carbon dioxide in air?
   0.04%
4. Which is the least component present in air?
   Carbon dioxide

Question 3.
What is being done here to make the stove burn? What do you learn from this write here?
Answer:

Air helps things to burn

Question 4.
Match the drawing lines.
Answer:

Question 5.
Write any two measures to prevent air pollution?
Answer:

1. Preferring public transport
2. Avoid burning of substances near civilian areas.

Question 6.
In the following pair of figures identify the right and wrong ones. By the concept of air pollution and write the reasons.

Answer:

Class 5 EVS Air Additional Questions and Answers

I. Multiple choice questions:

Question 1.
The chief constituent of air is
a. Hydrogen
b. Oxygen
c. Nitrogen
d. Carbon
Answer:
b. Oxygen

Question 2.
Nitrogen occupies ______ by volume of air.
a. 78%
b. 74%
c. 90%
d. 72%
Answer:
a. 78%

II. Fill in the blanks:

1. Air is a mixture of many gases.
2. Air is one of the natural resources
3. Nitrogen occupies 78% by volume of air.

III. Answer the following questions:

Question 1.
Name the constituents of air?
Answer:
Air is mixture of several gases like Nitrogen, Oxgen, Carbon dioxide, water vapor, insert gases and dust particles.

Question 2.
Write any two properties of air.
Answer:

1. Air occupies space.
2. Air has weight.

Question 3.
‘Air has weight’ – explain this with an experiment.
Answer:
Take two balloons of the same size, and mark them as A and B and blow them to equal size. The these ballon to the end of a meter scale. Move the balloons along the scale to balance the scale. Slowly allow the air from ballon A to escape. The scale becomes imbalanced when the air is released from ballon A and the side of the scale with ballon B goes down. This shows air has weight.