Narative dialogue between student and teacher with five element of Scientific Method

The scientific Method

The scientific method is a systematic means of exploring and explaining the world around us

SCIENTIFIC METHOD STEPS

The exact number of steps to the scientific method depends on how you break up the steps, but here is an overview of the basics:

1. Make observations.
2. Propose a hypothesis.
3. Design and perform an experiment to test the hypothesis.
4. Analyze your data to determine whether to accept or reject the hypothesis.
5. If necessary, propose and test a new hypothesis.

COLLOIDS

            In the Monday morning, the student will be study about colloids. Mr Oxhy will teach them about it. In 7 AM, Mr Oxhy come to their class.

Mr Oxhy : “Good morning class?”

Students  : “Morning Sir”
Mr Oxhy : “Ok, today we will be discuss about colloids. Colloids is a mixture in which one substance

                    is divided into minute particles (called colloidal particles) and dispersed throughout a

                    second substance.”

    

            Mr Oxhy, suddenly take some picture and they must guess its colloids or not.

Mr Oxhy : ”Okay, between milk and water, you know where is colloid?”

Angela    : ”I think that, it must be milk, sir.”

Ricard     : ”Yeah.. I agreed with Angela, because when we mix some water and milk, the particle

                    look like mixed but is not.”

Mr Oxhy : ”Good Angela and Ricard, A colloidal system is not a true solution but it is not a

                    suspension either because it does not settle out like a suspension will over time. Ok 

                    more example?”

Clara       : ”Hmhmhmm, coconut milk sir.”

Mr Oxhy : ”Good job Clara. Ok, colloids are usually classified according to the original states of their

                    constituent parts:

Dispersing medium	Dispersed phase	Name
Solid	Solid	Solid sol
Solid	Liquid	Gel
Solid	Gas	Solid foam
Liquid	Solid	Sol
Liquid	Liquid	Emulsion
Liquid	Gas	Foam
Gas	Solid	Solid aerosol
Gas	Liquid	Aerosol

Jaden       : ”Sir, about dispersing medium is solid and dispersed phase is liquid and the name is Gel.

                   Like jelly?”

Mr Oxhy : ”Good question. These are just a few of the many examples of colloids, both man-made

                    and naturally occurring:

NO	Name of Colloid	Man-made	Natural
1	Aerosols	Aerosol sprays, insecticide spray, smog	Fog, clouds
2	Solid aerosol	Smoke, dust
3	Foam	Shaving lather, whipped cream
4	Emulsions	Mayonnaise, cosmetic lotion, lubricants	Milk
5	Sols	Paint, ink, detergents, rubber
6	Solid foams	Marshmallow, styrofoam, insulation, cushioning.
7	Gels	Butter, jelly
8	Solid sols	Certain alloys	Pearl, opal

Mr Oxhy : ”Ok class, I think that’s enough for today. See you next time, its time for you to break.”

            Time show 10AM, all students go to break and Mr Oxhy go out from their class.