Coke Zero + Mentos

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Vidi, Jazzlyn, Pandu, Claudia Akhsa, Alifyandri, & Adhika
SODA + MENTOS
Group 2
GROUP 4 PROJECT
RESEARCH QUESTION

How does it take to start and finish the rate of
reaction where a substrate (mentos) are placed
in different types of soft drinks? Will the
amount of the substrates affect the reaction?
And will the temperature affect the explosion?
HYPOTHESIS
GENERAL HYPOTHESIS

There are many factors that can affect the
reaction of the explosion:
 Temperature
of the soft drink
 Different type of sodas
 The amount of mentos
BIO & CHEM’S HYPOTHESIS
Amount of mentos will affect the duration of
the reaction
 Different sodas will affect the height of the
reaction explosion

PHYSICS HYPOTHESIS
Cold temperature will lessen the reaction
 Hot temperature will ignite a higher reaction
 Constant room temperature will act as a
medium of the reaction

VARIABLES
Pandu and Akhsa
CHEMISTRY’S VARIABLE
INDEPENDENT VARIABLE

Mentos – during the three trials, amount of
metos will be different due to the reason that it
is needed for chemistry to see which amount (5
piece, 10 piece, or 15 piece) has the greatest
reaction
DEPENDANT VARIABLE

The duration of the reaction when different
amounts of Menthos react with sodas
CONTROL VARIABLE
Size of Menthos- Each piece of mentos will have
same shape and size. This will allow equal chance
for every soda to have a reaction.
 Temperatures- The liquid will be placed under the
same room temperature 24*C to keep a steady
reaction not to boost or slow down the reaction,
more than the mentos will.
 Volume- The Liter (L) of the solution will be the
same (1,5 L) so everything would be equal in
having the opportunity to react.

Jazzlyn and Vidi
BIOLOGY’S VARIABLES
INDEPENDENT VARIABLE

Type of Soda – The different type of soda will
provide different height of the reaction. By
changing the soda’s, there will be different
amount of sugar that will contribute to the
reaction of the CO2.. This will help to the extent
whether each soda will have different height
and duration of the reaction.
DEPENDENT VARIABLES



The effect of the different sodas on the reaction with
Mentos. This will show a trend of the reaction rate, in
order to draw a general conclusion whether the different
amount of mentos will affect the soft drinks.
The duration of the reaction Mentos give to the different
sodas. This will determine whether the type of the soda
will affect the rate of the reaction.
The height of the mentos explosion. This will determine
whether the amount of the mentos really affects the
height of the explosion rate. This variable is essential to
gather a constant range of data’s.
CONTROLLED VARIABLE



Sizes of Mentos - each package of this candy when sold
will be weighted to a specific number, meaning each
piece that is presented in the round but flat form has
the same size. This will allow equal chance for every
soda to have a reaction.
Temperatures – the liquid will be placed under the same
room temperature (24°c) to keep a steady reaction not
to boost or slow down the reaction, more than the
Menthos will.
Volume – the liter (L) of the solution will be the same
(1,5 L) so everything would be equal in having the
opportunity to react.
Alif and Adika
PHYSICS’ VARIABLES
INDEPENDENT VARIABLE

Temperature – different temperature can affect
the time and height of reaction
DEPENDENT VARIABLE
Time of reaction – to show that if that
temperature affects time of reaction
 Height of reaction – to show that temperature
affects the height of reaction

CONTROLLED VARIABLE
Amount of mentos – 5
 Type of mentos – mint
 Type of soda – coke zero
 Volume of soda – 425ml

GENERAL MATERIALS
MATERIALS
5 Rolls of Mentos Mint
 Bucket
 Stopwatch
 20 cm Ruler
 9 different 1.5 Litres soft drinks

3
Coca – Cola Zero
 3 Regular Sprite
 3 Fanta Orange
MATERIALS EXCLUSIVE FOR PHYSICS
9 Coca Cola Zero (425 mL sized)
 Thermometer 2x
 Refrigerator
 Ice Cubes 500 mL
 Waterbath

 500
mL Beaker
 500 mL of water
 Hotplate
GENERAL PROCEDURE
GENERAL PROCEDURE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Prepare all materials
Place one bottle of 1.5 Liters of soda on a flat surface
Prepare the mentos (depending on the amount could
range from 5, 10, & 15 mentos)
Place the ruler at the neck of the bottle
Open the bottle
Quickly insert the mentos
Start counting the stopwatch
Measure the height with the ruler
Record the data
Repeat for 3 trials to get optimum data.
PHYSICS PROCEDURE
1.
2.
3.
Prepare all the 9 mini Coca Cola Zero
Put 3 drinks inside a frige and cool it until 15*C
3 will need to be heated by using a water bath
1.
2.
3.
4.
5.
Fill 500 mL of water in the 500 ml beaker
Heat the water filled beaker by using a hotplate
Place thermometer
Wait until the water bath is 60*C
Then place the Coca-Cola Zero inside of it for 10
minutes
PHYSICS PROCEDURE CONT’D
4. While waiting for the heating and cooling
process place 5 mentos inside of the “room
temperature” Coca Cola Zero
5. Measure the height and time when the
reaction occur
6. Repeat the step with the cold and hot coke
zero
PROCESSED DATA
CHEMISTRY PROCESSED DATA
TIME
The time taken of a reaction to stop, caused by the reaction of multiple
types of soft drinks and mint Mentos was tested in an Indonesian
outdoor climate setting, the time of the reaction was tested
180
160
Time in seconds
140
120
100
1st Trial
80
2nd Trial
60
3rd Trial
40
20
0
0
2
4
6
8
Number of Mentos
10
12
14
16
HEIGHT
The height of an explosion caused by the reaction of multiple types of
soft drinks and mint Mentos was tested in an Indonesian outdoor
climate setting, the height of the data was tested
30
25
Height in CM
20
1st Trial
15
2nd Trial
3rd Trial
10
5
0
0
2
4
6
8
Amount Of Mentos
10
12
14
16
BIOLOGY’S PROCESSED DATA
TIME
The Time Taken for the Reaction to Stop (in seconds witht the
uncertainties of 0.5 seconds, 0 seconds and 0 seconds)
The Time Taken of a Reaction to Stop, Caused by the Reaction of
Multiple Types of Soft Drinks and Mint Mentos was Tested in an
Indonesian Outdoor Climate Setting, the Time of the Reaction was
tested with an Uncertainty of + 0.5 seconds, 0 seconds
200
180
160
140
120
100
5 Mentos
80
10 Mentos
15 Mentos
60
40
20
0
Coke Zero
Fanta Orange
Regular Sprite
The Different Type of Soda's
HEIGHT
The Height of the Explosion Caused by the Reaction of Mentos
and Soft Drinks (measured in centimeters with the uncertainties
of+ 2.00cm, 1.66cm, and 2.50 cm
The height of an explosion caused by the reaction of multiple types of
soft drinks and mint Mentos was tested in an Indonesian outdoor
climate setting, the height of the data was tested with an uncertainty of
+ 2.00cm, 1.66cm, and 2.50 cm.
30
25
20
5 Mentos
15
10 Mentos
15 Mentos
10
5
0
Coke Zero
Fanta Orange
The Different Type of Soda's
Regular Sprite
PHYSIC’S PROCESSED DATA
TIME
Temperature vs Time of Reaction
70
Time of reaction (s)
60
50
40
30
y = -0.5337x + 58.652
20
10
0
-10
0
10
20
30
Temperature (C)
40
50
60
From the Graph above, we can see that as the temperature of the Coke Zero
increases, than the time of the reaction from start to finish will be shorter.
From the graph, we can also see that the random error is big; we can see
this from the points that are not close to the best fit line. This random error
is probably caused by the errors we make when we are doing the methods.
HEIGHT
Temperature vs Height Graph
16
14
y = 0.2545x - 0.7067
Height of Reaction (cm)
12
10
8
6
4
2
0
-10
0
-2
10
20
30
Temperature of Coke Zero (C)
40
50
60
From the first graph, we can see that as the temperature increases, than
the height of the reaction also increases. However this data of the two
variables are not directly proportional to each other. This can be proven
as we see from the graph when the best fit line doesn’t intercept the
origin which is 0.
CONCLUSION
BIO’S CONCLUSION
Sprite has the highest average amount of
explosion
 Fanta has the longest duration of the reaction
 Coke is in between of the two
 Reaction occurs because of the Nucleation
process where CO2 fuse with the pores of the
mentos to create the bubbles or foam
 Soft drinks with mentos is currently safe to
enter your digestive system.

CHEMISTRY’S CONCLUSION
Nucleation occurs when the mentos reaches
the surface of the soda.
 The more mentos is inserted to the soda it is
where the most and the fastest reaction is from
 When less mentos is inserted to the soda it is
where the least and the longest reaction occurs

PHYSICS CONCLUSION
Pressure is what helps an explosion occurs, not
only that but the CO2 placed inside the bottle
needs to go somewhere when opened or when
reacting with mentos.
 Higher temperature means higher pressure
 Therefore, the higher the temperature is, the
higher the height of reaction and the faster the
time of reaction
 While, the lower the temperature is, the height
would also be low and the time would be then
longer than the usual.

OVERALL EVALUATION
EVALUATION



The strength of this experiment for all three discipline is that it turned
out to be successful. With a table filled with results and by bringing
all the specific and right materials. Not only that but the group
collaborated well and accepted ideas from other members. Everyone
overall did their job equally.
The weakness is that we didn’t completely have the right procedures
to do this experiment because of underestimating that it would be
easy. So there were a slight miscommunication and lack of materials
at first even in the end we were able to overcome it.
What we would need to improve if were to do this again is one use a
camera that would catch all the specific detail that an eye could not.
Secondly, use gloves because the experiment could get messy. Then,
we should bring an apparatus that could help us put the mentos in
quickly and tidily not like how we did it before.
IMPACT TO SOCIETY

Many children are curious and do not know the
real effect of combining soft drinks with
mentos, even adults. That is why rumors have it
that people could die consuming these two
product together. So we did this experiment to
research the real situation and also to help the
society raise awareness. Giving better
knowledge to whom who does not understand
the effect of soft drink combined with mint
candies.
COLLABORATION
SPECIFIC MEASUREMENTS
NEW DISCOVERY
FOLLOWING PROCEDURES
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