HOW SOAP WORKSHOW SOAP WORKSHOW SOAP WORKSHOW SOAP WORKS

WHAT IS SOAP?WHAT IS SOAP?WHAT IS SOAP?WHAT IS SOAP?

A mixture of sodium salts of various A mixture of sodium salts of various naturally occurring fatty acids naturally occurring fatty acids

Soap is a cleansing agent made from Soap is a cleansing agent made from an alkali acting on natural oils and an alkali acting on natural oils and fatsfats

An alkali is a hydroxide or carbonate An alkali is a hydroxide or carbonate of an alkali metalof an alkali metal

HOW IT WORKSHOW IT WORKSHOW IT WORKSHOW IT WORKS

Most soaps remove grease and dirt because some Most soaps remove grease and dirt because some of their components are surfactants (surface-of their components are surfactants (surface-active agents)active agents)

Surfactants have a molecular structure that acts Surfactants have a molecular structure that acts as a link between water and the dirt particlesas a link between water and the dirt particles

This loosens the particles from the underlying This loosens the particles from the underlying fibers or surfaces to be cleanedfibers or surfaces to be cleaned

One end of the molecule is hydrophilic (attracted One end of the molecule is hydrophilic (attracted to water)to water)

The other is hydrophobic (attracted to substances The other is hydrophobic (attracted to substances that are not water soluble)that are not water soluble)

WHAT DOES IT LOOK LIKE?WHAT DOES IT LOOK LIKE?WHAT DOES IT LOOK LIKE?WHAT DOES IT LOOK LIKE?

SOAP AND SURFACE SOAP AND SURFACE TENSIONTENSION

SOAP AND SURFACE SOAP AND SURFACE TENSIONTENSION

SOAP AND SURFACE SOAP AND SURFACE TENSIONTENSION

SOAP AND SURFACE SOAP AND SURFACE TENSIONTENSION

HOW SOAP AFFECTS MILKHOW SOAP AFFECTS MILKHOW SOAP AFFECTS MILKHOW SOAP AFFECTS MILK

Milk is mostly water but it also Milk is mostly water but it also contains vitamins, minerals, proteins, contains vitamins, minerals, proteins, and tiny droplets of fat suspended in and tiny droplets of fat suspended in solution solution

When you add soap, the weak When you add soap, the weak chemical bonds that hold the chemical bonds that hold the proteins in solution are altered proteins in solution are altered

Soap molecules combine to form a Soap molecules combine to form a cluster called a micellecluster called a micelle

MICELLES – CLUSTERS OF MICELLES – CLUSTERS OF SOAP MOLECULES SOAP MOLECULES

MICELLES – CLUSTERS OF MICELLES – CLUSTERS OF SOAP MOLECULES SOAP MOLECULES

MICELLESMICELLESMICELLESMICELLES

Micelles distribute the fat in the milk Micelles distribute the fat in the milk This rapidly mixing fat and soap This rapidly mixing fat and soap

causes swirling and churning where a causes swirling and churning where a micelle meets a fat droplet micelle meets a fat droplet

When there are micelles and fat When there are micelles and fat droplets everywhere the motion droplets everywhere the motion stops, but not until after you've stops, but not until after you've enjoyed the show!enjoyed the show!

““What show,” you ask???What show,” you ask???