V K Sally Solutions for Exercise 3: Think & Answer
Author:V K Sally
V K Sally Science Solutions for Exercise - V K Sally Solutions for Exercise 3: Think & Answer
Attempt the free practice questions from Exercise 3: Think & Answer with hints and solutions to strengthen your understanding. Learning Elementary SCIENCE with ONLINE Support. solutions are prepared by Experienced Embibe Experts.
Questions from V K Sally Solutions for Exercise 3: Think & Answer with Hints & Solutions
MEDIUM
4th CBSE
IMPORTANT
Match the following.
| Column A | Column B |
| 1. Water can flow | a. by filtration |
| 2. You can purify water | b. on windy days |
| 3. The rate of evaporation increases | c. when the air is dry |
| 4. Water evaporates faster | d. through porous rocks |
MEDIUM
4th CBSE
IMPORTANT
What is the difference between sea breeze and land breeze?
HARD
4th CBSE
IMPORTANT
How will you show that hot air is lighter than cool air? Give an experiment.
EASY
4th CBSE
IMPORTANT
Which phenomena of condensation you see in your area? List the names only.
EASY
4th CBSE
IMPORTANT
How will you remove the impurities of water? Explain any one method.
MEDIUM
4th CBSE
IMPORTANT
What would happen if condensation stops in nature?
MEDIUM
4th CBSE
IMPORTANT
Why is it necessary to purify the water before drinking?
MEDIUM
4th CBSE
IMPORTANT
What are the reasons for lowering of the water table of underground water?
