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9th Science

1 / 11

Matter is not made up of small particles.

2 / 11

Solid CO2 is known as dry ice.

3 / 11

The state of matter can be changed by changing temperature or pressure.

4 / 11

Latent heat of fusion is the amount of heat energy required
to change 1 kg of solid into liquid at its melting point.

5 / 11

atmosphere (atm) is a unit of measuring pressure exerted by a gas.

6 / 11

Evaporation causes cooling.

7 / 11

phenomenon of change of a liquid into
vapours at any temperature below its boiling
point is called evaporation.

8 / 11

Solid state of the matter has largest space between particles than liquid

9 / 11

A solution is not a homogeneous mixture of two
or more substances.

10 / 11

A change of state directly from solid to gas
without changing into liquid state is called
sublimation.

11 / 11

Melting point for water is zero degree celsius

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