MAGIC
MILK
surface tension
Team
Alan Guzman Andrade
Valeria Avila Zeballos
Guillermo Rocabado Ballesteros
Anabel Luciana Garcia Montaño
SURFACE TENSION
MAGIC
MILK
ÍNDEX
07. CONCLUSIONS
04. THEORETICAL FRAME
01. INTRODUCTION
05. MATERIALS
08. APPLICATIONS
02. PROBLEM / QUESTION
03. HYPOTHESIS
06. EXPERIMENTAL DEVELOPMENT
Guillermo
01
Introduction
Explain the behavior of liquids (in this case milk containing fat and sugar molecules), attached to another similar substance such as vegetable coloring (with a different surface tension) mixed with dish detergent and show the changes that will happen when you mix them all together.
Guillermo
02
Problem/Question
How/Why will surface tension change in a liquid?
Guillermo
03
Hypothesis
The surface tension of the milk will be modified when placing the dishwasher detergent. Vegetable coloring will help us view the phenomena.
Valeria
04
Theoretical Frame
Surface tension is a physico-chemical phenomenon in which the surface of a liquid behaves like an elastic membrane. A film is formed on the surface that provides resistance to any object.
Valeria
05
Materials
• Bowl• Milk (natural) • Vegetable dyes at least 2 different colors • Cotton swabs • Dish soap/detergent
Alan
06
ExperimentalDevelopment
Alan
PROCESS
Step 2
Step 4
Step 1
Step 3
Now, we wet the cotton swab ends in soap and touch the center.
Next, we put a couple of drops of each coloring in the center of the dish, as close together as possible.
The colors will begin to move quickly, away from the tip of the swab, drawing singular irregular patterns.
First, we pour a little milk on a dish.
Alan
ViDEO
07
Anabel
Conclusions
Soap is a surfactant, this means, a substance that is going todecrease superficial tension of a liquid. Therefore if we mix the soap with the
milk, superficial tension is reduced, and the phenomena can be viewed with the vegetable dye.
Milk is made up of water, fat and
proteins. But mostly it is water,
almost 90%, so you have
similar properties .
Anabel
Practical Application
08
¡Eureka!
The mosquitoes and others
insects are able to walk on the Water surface.
Because its legs are hydrophobic and the weight of the insect is lower than the surface tension of the water.
¡THANKS!
ViDEO
MAGIC MILK
Claudia Ballesteros
Created on October 18, 2021
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Transcript
MAGIC
MILK
surface tension
Team
Alan Guzman Andrade
Valeria Avila Zeballos
Guillermo Rocabado Ballesteros
Anabel Luciana Garcia Montaño
SURFACE TENSION
MAGIC
MILK
ÍNDEX
07. CONCLUSIONS
04. THEORETICAL FRAME
01. INTRODUCTION
05. MATERIALS
08. APPLICATIONS
02. PROBLEM / QUESTION
03. HYPOTHESIS
06. EXPERIMENTAL DEVELOPMENT
Guillermo
01
Introduction
Explain the behavior of liquids (in this case milk containing fat and sugar molecules), attached to another similar substance such as vegetable coloring (with a different surface tension) mixed with dish detergent and show the changes that will happen when you mix them all together.
Guillermo
02
Problem/Question
How/Why will surface tension change in a liquid?
Guillermo
03
Hypothesis
The surface tension of the milk will be modified when placing the dishwasher detergent. Vegetable coloring will help us view the phenomena.
Valeria
04
Theoretical Frame
Surface tension is a physico-chemical phenomenon in which the surface of a liquid behaves like an elastic membrane. A film is formed on the surface that provides resistance to any object.
Valeria
05
Materials
• Bowl• Milk (natural) • Vegetable dyes at least 2 different colors • Cotton swabs • Dish soap/detergent
Alan
06
ExperimentalDevelopment
Alan
PROCESS
Step 2
Step 4
Step 1
Step 3
Now, we wet the cotton swab ends in soap and touch the center.
Next, we put a couple of drops of each coloring in the center of the dish, as close together as possible.
The colors will begin to move quickly, away from the tip of the swab, drawing singular irregular patterns.
First, we pour a little milk on a dish.
Alan
ViDEO
07
Anabel
Conclusions
Soap is a surfactant, this means, a substance that is going todecrease superficial tension of a liquid. Therefore if we mix the soap with the milk, superficial tension is reduced, and the phenomena can be viewed with the vegetable dye.
Milk is made up of water, fat and proteins. But mostly it is water, almost 90%, so you have similar properties .
Anabel
Practical Application
08
¡Eureka!
The mosquitoes and others insects are able to walk on the Water surface.
Because its legs are hydrophobic and the weight of the insect is lower than the surface tension of the water.
¡THANKS!
ViDEO