MATTER

MATTER: features Mass: Mass: how much matter an object has. It is measured in gr. & kg. What object do you think have more amount of matter? Straw Iron

MATTER: features Volume: Volume: the amount of space that matter takes up Which balloons take up more space? FULL Balloons EMPTY Balloons

MATTER: States

Solids have a DEFINITE SHAPE Solids have a DEFINITE SHAPE Solids have a DEFINITE VOLUME Solids have a DEFINITE VOLUME Solids have STRONG BONDS Solids have STRONG BONDS

Liquids DON’T have a DEFINITE SHAPE Liquids DON’T have a DEFINITE SHAPE Liquids have a DEFINITE VOLUME Liquids have a DEFINITE VOLUME Liquids have WEAK BONDS Liquids have WEAK BONDS

Gases DON’Thave a DEFINITE SHAPE Gases DON’Thave a DEFINITE SHAPE Gases DON’T have a DEFINITE VOLUME Gases DON’T have a DEFINITE VOLUME Gases DON’T have BONDS Gases DON’T have BONDS

Let’s remember the states of matter and their characteristics

Changes in Matter Physical changeChemical change Changes in shape Changes in state SAME SUBSTANCE NEW SUBSTANCE IS PRODUCED

Let’s play… What kind of change has happened? And what force is applied? PHYSICAL CHANGE TWISTING HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE EXPOSING TO AIR

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BURNING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE SQUASHING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE HEATING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE FREEZING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BURNING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE HEATING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BENDING

Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE STRETCHING

MIXTURES HETEROGENEOUSHOMOGENEOUS We can see the substances easily We cannot see the substances easily

Properties of materials Materials have different properties They can be… RESISTANT (Material DIFFICULT to BREAK)

Properties of materials Materials can be… FRAGILE (Material EASY to BREAK) RIGID (Material DOESN’T BEND easily) FLEXIBLE (Material EASY to BEND)

Properties of materials Materials can be… ELASTIC (RETURNS to its original shape) TRANSPARENT (LIGHT CAN PASS through them) OPAQUE (LIGHT CAN’T PASS through them)

Properties of materials Materials can be… WATER PROOF (WATER CAN’T PASS through them) HEAT CONDUCTORS (HEAT PASSES through easily) HEAT INSULATORS (HEATCAN’T PASS through them easily)