CBSE Class-7 Science: Questions 110 - 116 of 322

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Question number: 110

» Heat » Measuring Temperature » Laboratory Thermometer

MCQ▾

Question

Thermometer used in labs is called as:

Choices

Choice (4) Response

a.

Laboratory thermometer

b.

Clinical thermometer

c.

Thermometer

d.

Question does not provide sufficient data or is vague

Question number: 111

» Fibre to Fabric » Animal Fibres » Wool

MCQ▾

Question

Wool is widely used in clothing because:

Choices

Choice (4) Response

a.

Its fibres uncurl when stretched but return to their original state when released.

b.

Each fibre is covered with scales

c.

It resists creasing and crushing

d.

All a. , b. and c. are correct

Question number: 112

» Physical and Chemical Changes » Physical Changes » Properties of Physical Changes

MCQ▾

Question

Characteristics of physical changes are:

Choices

Choice (4) Response

a.

No loss or gain of energy takes place

AND

No change in mass occurs

b.

No formed new substance

c.

Reversible and temporary

d.

All a. , b. and c. are correct

Question number: 113

» Heat » Measuring Temperature » Clinical Thermometer

MCQ▾

Question

Instrument used to measure out body temperature is:

Choices

Choice (4) Response

a.

Thermometer

b.

Clinical thermometer

c.

Laboratory Thermometer

d.

None of the above

Question number: 114

» Weather, Climate and Adaptations of Animals to Climate » Climate and Adaptation » Polar Region

MCQ▾

Question

Areas around the pole are called as:

Choices

Choice (4) Response

a.

Desert region

b.

Polar region

c.

Tropical rainforest

d.

All of the above

Question number: 115

» Acids, Bases and Salts » Neutralization in Everyday Life » Ant Bite

MCQ▾

Question

The sting of ants and bees contain:

Choices

Choice (4) Response

a.

Alkali

b.

Formic acid

c.

Hydrochloric acid

d.

Question does not provide sufficient data or is vague

Question number: 116

» Fibre to Fabric » Animal Fibres » From Fibres to Wool

MCQ▾

Question

Number of steps involved for obtaining wool from animals first and the foremost are the:

Choices

Choice (4) Response

a.

Rearing and breeding

b.

Breeding

c.

Shearing

d.

Rearing

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