Week 9 and 10

After finally completing all the practical side of things. It's time for the theory, I am now in the process of writing my report and am almost finished with my draft. After this, I will reread it and polish it off giving it a final copy which will be submitted.

Close to finishing

I am now almost done with my report. All I have is one more section and that's the conclusion which I will be completing right now.

Finalised results from Experiment #2

Here is a table of the results from my experiment:

Results from experiment #2

After completing my experiment, I finally had some results in which I was proud of. The marble did not float on top of the money and it sunk straight to the bottom in a record time. Below are the results from my experiment after completing it four times.
I thought that using different types of honey would not affect the results, since they all have the same natural ingredients as stated on the label.
Below are some pictures of the outcome which do not show that much:
Room temperature

20 seconds (miswrote)

30 seconds (miswrote again)

40 seconds

Marbles

There is not much to see, but as you can see the marble sinks straight to the bottom.

Experiment #2. Attempt for results

I have gathered all my equipment for the second attempt of my experiment but I have made some major changes to my whole experiment. A re-written version of this can be found below.

Aim: To determine the viscosity of honey at different temperatures through the use of marbles

Hypothesis: The higher the temperature of the honey the lower the viscosity. In other words, the hotter the honey the faster the marble will sink

Equipment: 2 L of ONE type of honey, 4 same type of marbles, stop watch, 1 L measuring cup, 4 empty jars, permanent marker

Variables:
Independent: The temperature of the honey
Dependent: The time taken for a marble to sink to the bottom of the jar
Controlled: Same amount of honey, same type of marble, same size of marble

Method:
1. Name the 4 empty jars: Room, 20, 30 and 40. This will indicate the amount of time needed for it to be microwaved.
2. Pour 500 ml of honey into each jar
3. Place a marble into jar 1 and start the stop watch
4. Time how long it takes for the golf ball to sink to the bottom
5. Record your first time into a table
6. Microwave the jar named 20 for 20 seconds
7. Repeat step 3-4 and record the results into the table
8. Repeat step number 6 and 7 but this time use the different jars and microwave at different temperatures as indicated by the number on the jar
9. Repeat the experiment 3 or 4 times to increase reliability and validity
10. Graph the results

Experiment #1

Today, I conducted my experiment and it was a complete failure. I should have known that the golf ball had more density therefore making it float. After numerous attempts of trying to make it sink. I came to the conclusion that this experiment could not be done. An alternative that I thought of straight away was using marbles in which I will perform this experiment tomorrow.

Conducting the experiment

Now that I have all my ingredients ready to go, I can now begin my experiment. The first results of my first experiment will be available in the next blog entry