(i) Gandhi ji marched from ____________to______ to protest against salt law.
(a) Goa to Mumbai
(b) Ahmedabad to Dandi
(c) Gandhinagar to Dandi
(d) Gandhinagar to Ahmedabad
(ii) Salt and sugar easily dissolve in water because they are ________in nature.
(a) insoluble
(b) soluble
(c) sparingly soluble
(d) immiscible
(iii) A boat floats on water but a needle sinks down, it is due to_________.
(a) density of water
(b) evaporation of water
(c) weight of an object
(d) volume
(i) For making salt, water is allowed to dry in _______.
(ii) Dead Sea is the ________ of all.
(iii) Common salt is ______ in water while chalk powder does not dissolve in water.
(iv) Iron nail ______ in water but the katori floats.
(i) A lemon sinks in a glass of plain water but floats on adding salt in the water. Why?
(ii) Why does a person float in Dead sea, even after he does not know how to swim?
(iii) Suggest some ways to quickly dissolve sugar in water for making shakkarpara.
(iv) Do you think that the oil gets dissolved in water? Why do you think so?
(v) Why did Chittibabu and Chinnababu keep their mango jelly in the sun?
(vi) Name some things that are made by drying in the sun at your house.
(vii) How is the salt made?
(viii) You have washed your handkerchief and you want to dry it quickly. What all can you do?
(ix) What things do you put in water to make tea? Which of those things dissolved in water?
(x) You have been given some mishri pieces (lumps of sugar). Suggest some ways to dissolve them quickly?
The solutions of the worksheet "Experiments with Water - 2"
34 videos|240 docs|41 tests
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1. What are some simple experiments I can do with water at home? |
2. How does temperature affect the properties of water? |
3. What is the importance of water in our daily lives? |
4. How can I demonstrate the concept of surface tension in water? |
5. What are some common misconceptions about water? |
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