NSO Level 1- Science Olympiad (SOF) Class 8: Questions 712 - 715 of 1076

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Passage

Rutu took two paper cones A and B and poured some water in A. Then she heated both the cones as shown in figure. Observe the picture and answer the questions

Image of two Cone Paper

Image of Two Cone Paper

Question number: 712 (4 of 4 Based on Passage) Show Passage

» Combustion and Flame

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MCQ▾

Question

What does she observe when she continue heating the cone A?

Choices

Choice (4)Response

a.

Water in the cone changes to vapour and finally it dries up.

b.

The cone begins to burn.

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 713

» Reproduction in Animals

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MCQ▾

Question

Though the mother gives birth to young ones, sometimes the babies look exactly like father. The reason is

Choices

Choice (4)Response

a.

An offspring is developed after the union of male and female gametes.

b.

Male gamete called sperm consists of the characters and features of father and female gamete called ovum contains the characters and features of mother.

c.

The baby perform characters and features of either mother or father but the other’s characters are hidden in him.

d.

All a. , b. and c. are correct

Question number: 714

» Combustion and Flame

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MCQ▾

Question

The calorific value of a fuel is expressed in

Choices

Choice (4)Response

a.

Kilogram per litre

b.

Kilojoule per kilogram

c.

Joule per kilogram

d.

Kilojoule per litre

Question number: 715

» Metals and Non-Metals

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MCQ▾

Question

Diya was doing experiment. The steps of procedure are given here.

i) She took a test tube and put small pieces of copper wire in it.

ii) Added 4 to 5 drops of dilute sulphuric acid in test tube.

iii) Brought a lighted match stick near the mouth of the test tube

She observed that the match stick burnt with a pop sound. The gas produced due to chemical reaction would be.

Choices

Choice (4)Response

a.

Hydrogen

b.

Nitrogen

c.

Oxygen

d.

Carbon dioxide

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