NSO Level 1- Science Olympiad (SOF) Class 8: Questions 605 - 609 of 1076

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Question number: 605

» Combustion and Flame

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MCQ▾

Question

Crackers on ignition produce sound. The reason is

Choices

Choice (4)Response

a.

Crackers are explosives

b.

Crackers when ignited move fast and hit on obstacles to produce sound

c.

Explosion is a rapid reaction where heat light and sound are produced

d.

Both a. and c. are correct

Question number: 606

» Reproduction in Animals

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MCQ▾

Question

Find the odd one out from the given animals.

Choices

Choice (4)Response

a.

Blue whale

b.

Crocodile

c.

Mouse

d.

Bat

Question number: 607

» Reproduction in Animals

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MCQ▾

Question

Female gamete in humans is called

Choices

Choice (4)Response

a.

Spore

b.

Sperm

c.

Zygote

d.

Ovum

Question number: 608

» Reproduction in Animals

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MCQ▾

Question

The transformation of a larva into an adult by drastic changes is called

Choices

Choice (4)Response

a.

Fertilisation

b.

Metamorphosis

c.

Camouflage

d.

Question does not provide sufficient data or is vague

Question number: 609

» Combustion and Flame

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MCQ▾

Question

As a part of a task, the science teacher gave Sathish and Mukesh two pieces of wood and told them to burn it. Sathish chopped the wood in to slices and Mukesh tried to burn the wood as a whole. Teacher appreciated Sathish for taking right decision. The reason would be

Choices

Choice (4)Response

a.

Ignition temperature can be lowered by chopping the wood into slices.

b.

The whole piece has a lower ignition point than the slice.

c.

All of the above

d.

Question does not provide sufficient data or is vague

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