Page 70, 1. The reason we smell food cooking when we enter a restaurant is based on the _______ theory of matter. Kinetic Page 70, 2. In fact the ____ or ______ form of a substance is determined partly by its particle motion. state, physical Page 70, 3. In the main points in kinetic theory - it states that tiny particles are always in _______. motion

Page 71, 1. Unlike gases and liquids, a solid does not need a __________ in order to have a shape container Page 71, 2. Name two crystalline solids : Iron, diamond, ice Page 71, 3. Name two amorphous solids Rubber, wax, gum

Students will be able to… List the states of matter, their properties

and relate them to real world situations and to physical science.

Describe the phases of matter and define each.

Observe the forms of matter

Warm-up Notes/discussion Video clips – gases – plasma Organize notebook (to be turned in) and work

on any outstanding work.

States of Matter Chap. 3 sec. 1

Physical Properties of Matter

Four States or Phases of Matter

Solid – has a definite shape and a definite volume

Example –ice, book, desk

In a solid, atoms are in a fixed position relative to each other.

Crystalline solid – have an orderly arrangement of atoms

Amorphous solid – atoms or molecules that are in no particular order

Liquids – has a definite volume but no definite shape.

Takes the shape of its container

Example: water, mercury

In a liquid, the atoms are free to change position with each other.

Surface tension – forces acting on the particles of a liquid at the surface that causes liquids to form spherical shape drops.

Gas – has no definite volume and no definite shape

Example: Steam (water vapor)

In a gas, the atoms are free to move independently of each other.

Helium particles can travel 1.2 km/sec

Video clip –gas show

Plasma - is the most common kind of matter in the universe. 99% of known matter Plasma is matter in the state of ions and

electrons (charged particles)

Example: stars, lightning, auroras

Show video clip

Add or take away – Energy

Energy – the ability to do work

Examples: heat, light, nuclear

Kinetic energy – energy of motion (atoms are in constant motion)

Thermal energy – is the total kinetic energy of the particles that make up an object.

Temperature – is the measure of the average kinetic energy of a substance.

Endothermic changes – changes in state that requires energy

-melting point – temperature at which a solid changes to liquid state

Evaporation –liquid to gas state boiling point - temp. liq. to gas

Sublimation – change state from a solid directly to a gas

Matter plus energy

Ice + heat = water solid melting liquid

Water + heat = water vapor liquid evaporation gas

Evaporation – is the process of changing from a liquid to a gas

Matter minus energy

Water vapor - heat = water gas condesation liquid

Condensation – is the process of changing from gas to liquid

Water – Heat = Ice liquid freezing solid

The exchange of water amoung Earth’s hydrosphere (water), geosphere (land), and atmosphere (air). (4 steps)

1. Evaporation

4. Runoff or

Groundwater

3. Precipatation

2. Condensation

1. When changing from a liquid to gas does the mass of the amount of water change? No – it stays the same 2. Name two forms matter in the plasma state: Lightning, stars, auroras, neon signs. nebulas

1. A change in state of matter that requires energy is called an ____________ change Endothermic 2. Name a substance that sublimates: Frost, dry ice(solid CO2)