NSO Level 1- Science Olympiad (SOF) Class 5: Questions 247 - 249 of 404

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Question number: 247

» Water

Edit
MCQ▾

Question

Swati took four beakers containing equal amount of water. She wanted to check solubility of some solids like sugar, salt, chalk powder and saw dust. She added the solids to each beaker, stirred the contents with a spoon and waited for some time. What did she observe?

Image shows some solids likesugar, salt, chalk powder &saw dust

Image Shows Some Solids Likesugar, Salt, Chalk Powder &Saw Dust

This image shows some solids like sugar, salt, chalk powder and saw dust

Choices

Choice (4) Response

a.

Sugar and chalk power are soluble in water while salt and saw dust are insoluble.

b.

Sugar, salt, chalk powder and saw dust are soluble in water.

c.

Sugar, salt and chalk powder are soluble in water while saw dust is insoluble.

d.

Sugar and salt are soluble in water while chalk powder and saw dust are insoluble.

Question number: 248

» Water

Edit
Matching-Pair▾

Question

Find matching pair:

Choices

Choice (4) Response

a.

Fog

Is formed when raindrops pass through a very cold region of the atmosphere and freeze

b.

Dew

Is formed when the water vapours in the air condense and appear as droplets on the ground and other surfaces

c.

Hail

Is formed when it is very cold, and the dew or surface water freeze into tiny white crystals

d.

None of the above

Question number: 249

» Water

Edit
MCQ▾

Question

Which techniques of rainwater harvesting to a storage tank, through pipes?

Choices

Choice (4) Response

a.

Roadside drains

b.

Rooftop

c.

Hail

d.

None of the above

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