Match the following: i) Clinical thermometer A form of energy ii) Normal temperature of human body 100 ° C iii) Heat 37 ° C iv) Boiling point of water 0 ° C v) Melting point of water Kink

i) Clinical thermometer Kink All clinical thermometers have a kink and this kink prevents the mercury from flowing back into the bulb when the thermometer is taken out of the source of heat, like the patient’s mouth or arm pit, so that the temperature can be noted conveniently. ii) Normal temperature of human body 37 ° C The average normal body temperature of an adult human is generally accepted as 98 . 6 ° F ( 37 ° C ) . A temperature over 100 . 4 ° F ( 38 ° C ) most often means you have a fever caused by an infection or illness iii) Heat A form of energy Heat energy is the result of the movement or kinetic energy possessed by the atoms, molecules or ions in solids, liquids and gases. iv) Boiling point of water 100 ° C The water (liquid state) gets converted into steam (gaseous state) at the boiling point. The boiling point is measured to be a hundred degrees centigrade. v) Melting point of water 0 ° C The ice (solid state) gets converted into water (liquid state) at the melting point. The melting point of ice is zero degree centigrade. i) Clinical thermometer Kink ii) Normal temperature of human body 37 ° C iii) Heat A form of energy iv) Boiling point of water 100 ° C v) Melting point of water 0 ° C

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Tamil Nadu Board Class 7 Science Term 2>Chapter 1 - Heat and Temperature>Evaluation>Q I

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Mercury is often used in laboratory thermometers because it -

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Important Questions on Heat and Temperature

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Tamil Nadu Board Class 7 Science Term 2>Chapter 1 - Heat and Temperature>Evaluation>Q I

Which of the following temperature conversions is incorrect?

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Tamil Nadu Board Class 7 Science Term 2>Chapter 1 - Heat and Temperature>Evaluation>Q II

Doctor uses _____ thermometer to measure the human body temperature.

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Tamil Nadu Board Class 7 Science Term 2>Chapter 1 - Heat and Temperature>Evaluation>Q II

At room temperature, mercury is in _____ state.

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Tamil Nadu Board Class 7 Science Term 2>Chapter 1 - Heat and Temperature>Evaluation>Q III

Match the following:

i) Clinical thermometer	A form of energy
ii) Normal temperature of human body	$100 ° C$
iii) Heat	$37 ° C$
iv) Boiling point of water	$0 ° C$
v) Melting point of water	Kink