SODA + MENTOS

Vidi, Jazzlyn, Pandu, Claudia Akhsa, Alifyandri, & Adhika

GROUP 4 PROJECTGroup 2

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

CHEMISTRY’S VARIABLEPandu and Akhsa

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.

BIOLOGY’S VARIABLESJazzlyn and Vidi

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.

PHYSICS’ VARIABLESAlif and Adika

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 PROCEDURE1. Prepare all materials2. Place one bottle of 1.5 Liters of soda on a flat surface3. Prepare the mentos (depending on the amount could

range from 5, 10, & 15 mentos)4. Place the ruler at the neck of the bottle5. Open the bottle6. Quickly insert the mentos7. Start counting the stopwatch8. Measure the height with the ruler9. Record the data10. Repeat for 3 trials to get optimum data.

PHYSICS PROCEDURE1. Prepare all the 9 mini Coca Cola Zero2. Put 3 drinks inside a frige and cool it until 15*C3. 3 will need to be heated by using a water

bath1. Fill 500 mL of water in the 500 ml beaker2. Heat the water filled beaker by using a hotplate3. Place thermometer 4. Wait until the water bath is 60*C5. Then place the Coca-Cola Zero inside of it for 10

minutes

PHYSICS PROCEDURE CONT’D4. 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

4 6 8 10 12 14 160

20

40

60

80

100

120

140

160

180

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

1st Trial

2nd Trial

3rd Trial

Number of Mentos

Tim

e in

sec

onds

HEIGHT

4 6 8 10 12 14 160

5

10

15

20

25

30

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

1st Trial2nd Trial3rd Trial

Amount Of Mentos

Hei

ght

in C

M

BIOLOGY’S PROCESSED DATA

TIME

Coke Zero Fanta Orange Regular Sprite0

20406080

100120140160180200

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

5 Mentos10 Mentos15 Mentos

The Different Type of Soda'sThe

Tim

e Ta

ken

for

the

Reac

tion

to S

top

(in

seco

nds

with

t th

e un

cert

aint

ies

of 0

.5 s

econ

ds,

0 se

cond

s an

d 0

seco

nds)

HEIGHT

Coke Zero Fanta Orange Regular Sprite0

5

10

15

20

25

30

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.

5 Mentos10 Mentos15 Mentos

The Different Type of Soda's

The

Hei

ght

of t

he E

xplo

sion

Cau

sed

by t

he R

eac-

tion

of M

ento

s an

d So

ft D

rinks

(m

easu

red

in

cent

imet

ers

with

the

unc

erta

intie

s of

+ 2

.00c

m,

1.66

cm, a

nd 2

.50

cm

PHYSIC’S PROCESSED DATA

TIME

10 15 20 25 30 35 40 45 50 55 600

10

20

30

40

50

60

f(x) = − 0.533741598207618 x + 58.6522255414488

Temperature vs Time of Reaction

Temperature (C)

Tim

e of

rea

ctio

n (s

)

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

10 15 20 25 30 35 40 45 50 55 600

2

4

6

8

10

12

14f(x) = 0.25449215832711 x − 0.706743838685587

Temperature vs Height Graph

Temperature of Coke Zero (C)

Hei

ght

of R

eact

ion

(cm

)

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