Effect of Coca Cola on meat experiment 1 draft 1

1.     What do you want to find out? (Aim/Purpose/Research question)

What is the effect of Coca Cola on raw and cooked meat within the time frame of 48 hours?

2.    What is the tentative explanation of your research question? (Hypothesis)

If raw or cooked meat is placed in Coca Cola for a span of 48 hours, the meat will not be dissolved by the Coca Cola by the end of the experiment.

3.    In an investigation, there is only one variable to be changed. Which variable will you change in this investigation? (Independent Variable)

Presence of coca cola

4.    All the other variables must be kept constant. What are a few important variables that will affect the results greatly? (Controlled Variables)

·      amount of liquid in each container

·       approximate size of each piece of meat

·      temperature of surrounding

·       temperature of liquid

·      relative shape of container(as long as the pieces of meat are able to be completely covered with Coca Cola with 250ml of Coca Cola, the shape does not matter)

·      type of meat used

·      place where bottles are placed

·      whether meat is cooked or raw

5.    What results will you measure? (Dependent Variable)

Weight and total surface area of pieces of meat at the end of 48 hours

6.    What are the materials and apparatus that you will need to carry out the investigation? (Materials and Apparatus)

- 8 empty drink bottles

- 1litre of Coca Cola

- 1litre of water

- pork

- chicken breast

- pot( for boiling pieces of the meat)

- knife

- ruler

- weighing scale

- calculator

7.    What are the steps that you will take to carry out the investigation? (Procedure)

Step 1: Use the knife to cut out 4 pieces of chicken breast meat of approximately 2cmx2cmx2cm.

Step 2: Pour 250 ml of Coca Cola each into 2 bottles

Step 3: Pour 250 ml of Water each into 2 bottles

Step 5: boil 2 pieces of the cut chicken meat

Step 6: Using a ruler measure the area of each of the pieces of meat and record down

Step 7: Using a weighing scale weigh each piece of meat and record their masses down

Step 8: Place one piece of raw chicken meat into a bottle of Coca Cola and the other piece of raw chicken meat into a bottle of water

Step 9: Place one piece of boiled chicken meat into a bottle of Coca Cola and the other piece of boiled chicken meat into a bottle of water

Step 10: Leave bottles in a shaded area of room temperature for 48 hours

Step 11: remove pieces of meat from the bottles after 48 hours and weigh and measure them

Step 12: record data collected and organize data into a table

Step 13: repeat steps 1-12 with pork meat

Step 14: repeat steps 1-14

8.    How are data collected? (Data collection)

Data is collected using a weighing scale as well as a ruler and calculator. The weighing scale enables me to know the mass of the pieces of meat while the ruler and calculator enable me to know the total surface area of the pieces of meat. The pieces of meat are weighed before and after the experiment, after which the two weights are compared. Any change in the weights of the meat will enable me to find out if Coca Cola has an effect on the weight of the meat. The pieces of meat are also measured with a ruler after which their total areas are calculated with a calculator before and after the experiment. This enables me to compare the areas of the pieces of meat before and after the experiment to find any change in them. This will enable me to find the effect of Coca Cola on the area of the pieces of meat.