Maharashtra Board Class 4 EVS Part 1 Solution Chapter 4 – Water Safe for Drinking
Balbharati Maharashtra Board Class 4 EVS Part 1 Solution Chapter 4: Water Safe for Drinking. Marathi or English Medium Students of Class 4 get here Water Safe for Drinking full Exercise Solution.
Std |
Maharashtra Class 4 |
Subject |
Environmental Studies Part 1 Solution |
Chapter |
Water Safe for Drinking |
(B) ANSWER THE FOLLOWING QUESTION:
Question 1.
Name the substances used to make the solution called lemon sherbet?
Answer:
The substances used to make the solution called lemon sherbet are lemon, sugar, salt and water.
Question 2.
Why is it that water that looks clean and transparent may not be fit for drinking?
Answer:
Water that looks clean and transparent may not be fit for drinking. Because even in clean transparent water, micro- organisms can be present. This micro – organisms cannot be seen with naked eyes. So, we are not be able to see them. These micro organisms if entered our body then it can be harmful for our health.
Question 3.
When making a sherbet, what do we do to make sugar dissolve quickly?
Answer:
When making a sherbet, we use a spoon and stir with it, so that the sugar dissolve quickly in water
Question 4.
Does oil floats on water or sink in it?
Answer:
Oil floats on water because oil is lighter than water.
(C) COMPLETE THE TABLE:
Things | These Sink | These Float |
Given in the lesson
Other things |
Eraser, sharpener, the compass, steel spoon, stones, coin, soil, a screw, iron nail.
Rock, marble, steel, iron, copper., etc |
Plastic, sharpener, pencil, Rubber band, plastic spoon, groundnut shells
Ice, wood, sponge, kerosene, petrol, etc tennis ball |
(D) FILL IN THE BLANKS:
(1) Substance like salt and sugar __________?
Answer: Dissolve.
Question 2.
The Mixture obtained on dissolving a substance in water is called __________?
Answer: Solution.
Question 3.
OCS is an example of _________ solutions?
Answer: Useful.
Question 4.
All micro organisms are not useful. Some can cause __________ If they enter our body?
Answer: Disease.
Question 5.
Things that float in water are __________ than it and things that sink are __________ than it?
Answer: Lighter, Heavier.
Question 6.
A substance called _______ Is swirled in muddy water to help clean the water?
Answer: alum.
(E) TRUE OR FALSE:
Question 1.
Alum powder does not dissolve in water.
Answer: False.
Question 2.
Micro organisms cannot live in water.
Answer: False.
Question 3.
If Muddy water remains still, a sediment is formed at its bottom.
Answer: True.
Question 4.
An eraser floats in water
Answer: False.
Question 5.
Tea leaves can be separated from tea by filtration.
Answer: True.
For More Solutions, Click Below :-
- Ch 1. The Life Cycle of Animals
- Ch 2. The Inter-relationships between Living Things
- Ch 3. Storage of Water
- Ch 5. Water for Every Household
- Ch 6. Variety in Food
- Ch 7. Food and Nutrition
- Ch 8. The Value of Food
- Ch 9. Air
- Ch 10. Clothes
- Ch 11. A Look inside the Body
- Ch 12. Home Remedies for Simple Illnesses
- Ch 13. Directions and Maps
- Ch 14. Maps and Symbols
- Ch 15. My District, My State
- Ch 16. Day and Night
- Ch 17. My Upbringing
- Ch 18. Changes in the Family and Neighbourhood
- Ch 19. My Delightful School
- Ch 20. I’ll be responsible and sensitive
- Ch 22. Transport and Communication