Vuyo sikwebuMy experiment science fair

project In different materials which one is

the best insulationAnd

Which area makes the ice cubes melts quicker

abstract On the experiment that I had been doing was tested

as following ,my question was which material is the best insulator and which area was the quickly melts the ice cube however that’s where I tested the above questions, and then I timed my experiments by 10minutes to 5 minutes on each experiments and waited to see how they reacted on melting in different materials and in different areas whereby I tested the size of the ice cube after I had timed the ice cubes , by putting the ice cubes on the ruler to see in what cm is it weighing, and there that’s how I had found my results from both experiments that are linked together. Which are which materials are the best insulators, and which areas are the ones that makes the ice cubes melts quickly

Scientific knowledge Some materials insulate or protect from heat transfer better

than others materials do. In science, there is a measurement for the ability of a material to insulate from heat transfer. This measurement is the R-value. Higher R-values mean higher insulation abilities. Even without making a specific measurement of R-values The effectiveness of insulation is commonly expressed as thermal resistance or R-value, it is a measure of the ability of a material of given thickness to resist the transfer of heat. Insulating products are grouped in two main types, bulk insulation and reflective insulation. Bulk insulation works by trapping dry air in a bulky material making it unable to conduct heat. Reflective insulation reduces radiant heat loss by reflecting it back into the space. It is most commonly used under timber suspended floors. Reflective insulation has no effective R-value. Reflective insulation can only remain effective if it maintains a reflective finish and a still air zone is maintained, thus it should not be installed under open subfloors (pole houses) and needs to be installed without gaps

question

How can we stop ice from melting in a cool box for a journey to Senegal?

Which material is the best insulator?

hypothesis

Some insulation material will be more effective at preventing ice from melting.

Variables My variables are the one that I will be more based on

meaning that I will be using to change control and measure what’s happening throughout my the experiments which will be;

Control –I will be keeping the same the ice that will be my control that will show what my experiment is about and how on its own react.

Dependent-this type of a variable is the one that I will be changing, meaning that I will be changing the materials I will be using to wrap the ice cube and putting the ice cube in different places to make it a fair test.

Independent-again this is what I will be measuring, that’s when I will be measuring the way it melts by looking at the time, for instant how many minute does it to melt.

Aparatus/diagrams/photographs on this experiment I had used Cotton Fabric Foil Fabric Ice cubes Ruler

had used the above equipment's to carry out the experiment that I was testing since my question was based on which materials are the best insulator to our trip to Senegal and which areas are the ones that makes the ice cubes melts easily, therefore for the second question that’s where by I had to put the ice cubes in different areas to check which area made the ices melts easier and those areas were:

On the radiator On the window sill(open) On the window sill(closed) On the table(this ice cube was the

one I used as my control one)

For the first question which was which material is the best insulation, therefore I had used the materials that I had used to test how different can insulate the ice cube keeping its cold for a longer time to travel keeping it cooler, there fore my materials were that I had used to carry out the experiment:

Cotton Foil Plastic wrap Fabric Control not wrapped These ice cube were three were by I repeated the

experiments.

This is what it is going to look like at

This is how it is going to look like at

This it how it is going to look like at

This is how It is going to look like at

On the radiator

On the window sil(open window)

On the window sil(closed window)

On the table

My method will be shown on table above to show you how I had tested my experiment about the first question that was, which areas are the ones that makes the ice cubes melts quickly

On the table above was just to identify, This is how my experiment looked like when I was testing it, and therefore after I had timed the ice cubes how they react in 10 to 5 minutes I will then measure it by to put it in a ruler to see its size and then from that measurement I then did my graphs which were line graphs to show how the ice cubes reacted within that 10 minutes..

On the second part of my experiment I did about insulation was tested as the following to see when travelling to Senegal which material is the best insulation.

In the second part I wrapped the ice cubes with different materials to see which material was the best insulation, and those material were

• Cotton Foil Plastic wrap Fabric On this test I wanted to find which material

keeps the ice not melting for a long time as well as I wanted to find on the fist 1 which areas makes the ice to melt quickly

Planning of the second question which insulation is the best

How could we investigate keeping cool

Size of pieces what am I going to measure with materials that I am going to use-How much

materials How am I going to time my experiments

On this mind map above ,it was just to give me an idea how am I going to do my experiments to guide me on things I had planned because sometimes you may plan something but somehow it happens that you forget it so this will be helping me along those lines

After doing the experiment I must now think of how I am going to record my results which Is pretty easy I recorded my results on two separated line graphs.

For the first one which is ice will be recording my results on a line graph because the results are continuous, and for this one which is insulation I will be recording my results on a line graph because they are both continues results. Now this was just my method to show to you how had recorded my results and how I had planned the experiment.

Results and conclusion 1st

part 2nd part

3rd part

Fabric 3.4 3cm 3.5 plastic 3.7 3.5 3.2 foil 3.5 3.3 3.8 control 3cm 3 3.1

Second part of the experiment

On the radiator 1.1cm 1.1cm 0cm On the window sil(open window)

1cm 1cm 1cm

On the window sil(closed

3.3cm 3.2cm 2.3

On the table 3.1cm 2.9cm 3.2

The conclusion of my experiments

The above were my measurements of the two experiments that I was doing and therefore I had seen that different areas have different temperatures because when its not cold and windy ice cubes are I mostly not to melt faster but on this experiment I had found out that the temperatures may also be the cause why ice cubes are at most to melt faster on some parts but on some parts doesn’t melts faster as on some parts.

bibliography

On this experiment that I had been doing when I researched I had found out that a lot of scientists had done this experiment correctly and on higher standard as this end of my experiment I will share some of the scientists that had done this experiment. The might be more which I don’t even know but these are the ones that I had found and learnt from them.

Insulation Spray References Science on the Brain: What is the best insulation? Science Projects: Insulation The Effect of Different Insulations on the Melting Rate of Ice:

Colin A.; 2003 Science Buddies: Which Is the Better Insulation Material?

Read more: Science Projects on Insulation and Ice Cubes | eHow.com http://www.ehow.com/info_8214291_science-projects-insulation-ice-cubes.html#ixzz1qjdcb7Cn

End!!!!!!!!!!!!!!!!!!!!!!!

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Thanking you for the

opportunity