Sabbaticals -- Day 1

Sabbaticals Week is a very special week for all Hwa Chong students. It is a week which most of us will not be in our classrooms having boring lessons. Instead, we will go for a "workshop" to have our lessons.

For me(as well as most of my classmates), this "workshop" is 'Science Eureka 2007'!

Today is the first day and my group(Group E) was doing "Tutti Foodi", whch is experimenting with food.

And guess who is one of the trainers? I will not tell you (but will give you clues who is he, just pay more attention to the next paragraph! :P).

So firstly , we experimented with toasted bread. We used iodine to finD out that white bread contains starch(turns dark-blue) while toasted bread containd dexsterin(turns red). SadlY, the red cannot be seen very clearly(the result is almost the same as white bread).

Secondly, we did an experiment to find out the iron content in fruits and vegetables.(Too sad we cannot view the results as the trainer says it takes 24 hours for the dark particles to appear). Spinach Juice has the highest amount of Iron in it while Apple Juice has the least. We also watched a short part of X-men whch proves that there is iron in human's body(in the blood).

Thirdly, we did an experiment on apples(not oranges :) ). The green apples contain starch , which turned into sugar when ripened. Thus, red apples are sweeter.

Then, we did an experiment to find out how much sugar a food contain. We did experiments on Apple, Apple juice, Tomato, Tomato juice, Orange Juice, Milk, Cola, Water and Sugar water. What i found most fun was mashing the tomatoes(me and Wei Xiang smashed the tomatoes[diced] while the two other boys from 2N smashed the apple[diced]). Second most fun was the mixing of the different samples given to us(the Apple, Apple juice, Tomato, Tomato juice, Orange Juice, Milk, Cola, Water and Sugar water[Wei xiang is so crazy, go and mix and add iodine -.-''']).

Finally, we did an experiment to detect Vitamin C in fruits and Vegetables. This one was still OK, the boiled orange juice had all of its Vitamin C destroyed and thus cannot turn the iodine solution with cornstarch into a clear solution, but for the rest we "overshot"(added to many drops) so we estimated(haha). Carrot Juice has the highest concentration of Vitamin C while Apple Juice has the least.

Sounds fun? I am looking forward to tomorrow's XplosivChemi...