Science



☒ Not achieved ☑Achieved☑☑Advanced
 * Science Fair Marking Term 2 2011**

☑☑Clear aim/hypothesis carried through ☑☑Method, accurate experimentation ☑☑Accurate experimentation, controls, variables, repetitions ☑☑Results clear, accurate, include appropriate data ☑Conclusions are in line with aim/hypothesis ☑Results are interpreted and discussed (conclusion)
 * Scientific Process and Background:**

☑☑Design of the experiment ☑☑Use of apparatus and materials
 * Technical Skill:**

☑☑Imaginative/creative ideas ☑☑New/Unusual application in science
 * Originality:**

☑☑Colour/form/clarity/graphics ☑☑Innovative appeal
 * Presentation of Display:**

☑Authentic ongoing record with raw data included ☑Has supporting documentation, bibliography, acknowledgements
 * Log Book:**

This is a really interesting Science Fair, and I would like to find out if this has the same effect on our body (maybe this will be something you could do at college). Thomas your display was well presented and easy to follow. Your discussion and conclusion was a little thin, remember to back up your findings with evidence. What were the gases? which chemicals/substances in processed food give off the extra gas?
 * Teacher Comment:**

This year I have found my science fair much easier then last years one. I still have some changes to make on my show board which I will get done. I found this topic more fun and was time officiant for me. It was a bit of a struggle finding all the coke bottles to put the food in, but we managed. Overall I think I did pretty well and I'm glad to say good bye to science fairs!
 * Student Comment:**

Processed vs Non-Processed
 * Science Fair 2011**


 * Introduction:**

My aim is to see if there are any differences in the volumes of gases given off between non processed food and processed food.
 * Aim:**

I believe that processed food will produce more gasses than non-processed food because it has additives unlike non-processed food.
 * Hypothesis:**


 * Method:**

Materials Needed:

1x Bottle of vinegar 1x Measuring Cup 1x Food Scales 1x Tape Measure 4x Different types of processed food and non-processed food 8x Balloons 8x Test Tubes

1. Weigh all eight samples equally so they all weigh 10 grams. Place the samples into the eight test tubes. Make sure that four of the test tubes have processed food, and the other four test tubes have non-processed food. 2. Now add ten milliliters of vinegar (acetic acid) into each test tube. 3. Slightly shake the test tubes but make sure none of the ingredients in the test tube spill out, and let it settle for 30 seconds. 4. Once settled carefully place a balloon over all eight tubes, making sure that each balloon has no air inside. 5. Place all test tubes into the microwave for 15 seconds. 6. Now wait for 6 hours and then measure the circumference of the balloons with the tape measure. What ever balloon turns out to be the biggest is the balloon with the most gas in it.


 * Conclusion:**

As you can see my conclusion was correct as my hypothesis. In all five tests, with all three samples of processed and non-processed foods, processed gases seemed to have quite a lot more gas then non-processed especially in Beetroot. The difference is most likely to be because of the extra chemicals in processed food. By eating lots of processed food we can conclude that more gases will be given off.


 * Discussion:**

A previous experiment tested by American Scientist’s back into 2005 found that processing foods gave more gases off, so I decided to compare processed foods with non-processed foods with gases. It would be interesting to take this experiment to the next level and test within the human body, to see how these gas’s can effect the stomach.


 * Test Results Chart:**



**//Excellent start to your Science Fair Thomas, I am interested in seeing your results. Please begin your experiment as soon as possible.//**