Experiments - Hurumanu 2 Science

Hello guys and girls, we have been doing an experiment about proteins, simple sugar and complex sugar. Before we do our experiment we have to be in a group, I´m with Lyan, Emily, Lucy and Milan. We have to test 6 different things which are sugar, apple, potato, milk, egg and bread. We used different methods to test different food.
     
Method
We put the 6 different food at the test tube to put our chemical in. The chemicals were Iodine, Benedict, sodium hydroxide, copper sulfate (we didn´t add them all together, different experiment different tube for each of it).

Our group thought that bread, potato, milk and egg are Complex sugar but the result was that the bread and potato was the only complex sugar. We thought that the simple sugar was apple and sugar but the only simple sugar was the apple. we thought that the proteins were egg and milk and we got them right.

Our first experiment was Complex sugar we put drops of iodine in our test tube where our different types of small pieces of a different kind of food that we are testing. If this is a complex sugar this turn into blue or black. The simple sugar experiment was to put 2ml of Benedict solution and boil it, this should turn to orange and green this means that this is a simple sugar. we should know that if its a protein this turn into purple, we did this by adding sodium hydroxide and copper sulfate.