NSO Level 1- Science Olympiad (SOF) Class 7: Questions 198 - 203 of 593

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Question number: 198

» Heat

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MCQ▾

Question

Which of the following is the process via which the heat travels from sun to earth?

Choices

Choice (4) Response

a.

Conduction

b.

Radiation

c.

Convection

d.

Question does not provide sufficient data or is vague

Question number: 199

» Fibre to Fabric

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MCQ▾

Question

Silk fibre when burnt smells like burning hair. The reason of this is that both silk fibre and hair are made of

Choices

Choice (4) Response

a.

Vitamins

b.

Fats

c.

Carbohydrates

d.

Proteins

Question number: 200

» Physical and Chemical Changes

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MCQ▾

Question

The following are the chemical properties for which metal?

  1. Resistant to corrosion.

  2. It is soft and malleable.

  3. It melts at 660oC.

Select the correct option.

Choices

Choice (4) Response

a.

Iron

b.

Steel

c.

Aluminum.

d.

Copper

Question number: 201

» Heat

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MCQ▾

Question

A cold steel spoon is dipped in a cup of tea. The spoon gets warm.

The above statement is example of which of the following?

Image showing cup of tea

Image Showing Cup of Tea

Image showing cup of tea

Choices

Choice (4) Response

a.

Convection

b.

Insulation

c.

Conduction

d.

Question does not provide sufficient data or is vague

Question number: 202

» Physical and Chemical Changes

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MCQ▾

Question

Which of the following is the chemical name for Blue Vitriol?

Choices

Choice (4) Response

a.

Magnesium Sulphate

b.

Ferrous Sulphate

c.

Copper Sulphate

d.

Zinc Sulphate

Question number: 203

» Fibre to Fabric

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MCQ▾

Question

Refer the given picture and select the option that correctly identifies the fiber.

Identifies the fiber

Identifies the Fiber

Identifies the fiber

Choices

Choice (4) Response

a.

Cotton

b.

Wool

c.

Silk

d.

Nylon

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