Chapter 1-Matter in Our Surroundings

The phase change of a substance from the liquid state to a solid- state is called ________.

The phase change of a substance from the liquid state to a solid- state is called ________.

freezing

If the surface area is increased, the rate of evaporation ________.

increases

________ is the change of gaseous state directly to solid state without going through liquid state.

Deposition

________ is the change of solid state directly to gaseous state without going through liquid state.

Sublimation

Although they are not rigid, fluids can change shape and flow.Intermolecular space is more than solids and ________ is less than solids.

intermolecular force of attraction

DRY ICE

________- When the pressure is reduced to one atmosphere, solid CO2 is immediately transformed to a gaseous state without first entering a liquid state.

________ drops as a result of the water vapour particles being carried away by the wind as wind speed increases, also rate of evaporation is directly proportional to increase in wind speed.

Humidity

Liquids

________ can diffuse solids, ________, and gases.

particles

The forces of attraction between the ________ are defeated by the energy provided by heat.

liquid particles

To make up for the energy lost during evaporation, the ________ take energy from their surroundings.

A drop in humidity: The amount of ________ in the air is referred to as humidity.

water vapour

The particles begin vibrating faster as a result of the increase in ________.

kinetic energy

The particles of matter are very small

they are small beyond our imagination

A rise in temperature

with a rise in temperature,more particles have enough kinetic energy to enter the vapour state as a result of rising temperatures so rate of evaporation increases

a drop in humidity

The amount of water vapour in the air is referred to as humidity

a rise in wind speed

It is a well-known phenomenon that clothes dry more quickly on windy days

________ is anything that has mass and takes up space. It can exist in three states: solid, liquid, or gas.

Matter

The state of matter that has definite volume but cannot form definite shape is _______

liquid

Generally all ______ are ductile

metals

The particles that make up matter is ________

atoms

______ is a state of matter has definite shape and size

solids

Not havinjg a definite shape is a property of __ ______ and ___

Gases,liquids

________ is a solid that undergoes sublimation

napthalene

Evaporation happens when temparature ________

rises