Hurumanu Science- Food Testing.

 My aim is to figure out what nutrients are present in different foods

Test foods - 

• Egg
• Bread
• Apple
• Potato
• Glucose
• Milk

Hypothesis: 

I think Bread will be a complex sugar, I think eggs will be a complex sugar,I think lollies will be a simple sugar,I think the apple will be a complex sugar,I think milk will be a protein and last of all i think the potato will be a complex sugar.

Method for complex sugar.

1.  Put the sample into the test tube.
2.  Then add 2 drops of iodine.

• The bread turned black.
• The Apple turned black

• The Potato turned black. 
• The Glue Coast turned brown.
• The Milk turned brown.
• The Egg turned brown. 

Method for simple sugar.

1.  Put the sample into the test tube.
2.  Then add 5 drops of Benedictines
3.  Then heat it up. 

Before heating the ingredients -

• The potato stayed blue. 
• The Apple stayed blue.
•  The glue coast stayed blue. 
• The egg went orange.
•  The bread stayed blue.
• The milk stayed blue.

After heating up the ingredients-

• The bread stayed blue.
• The egg Stayed blue.
• The milk stayed a little bit blue.
• The potato went orange.
• The apple went orange.
•  The Glue coast went orange.

1. Place about 2mL of sample into a test tube and add 5 drops of sodium hydroxide.
2. Add 5 drops of copper sulfate.
3. Shake the test tube side to side

• The Apple has no protein.
• The potato has no protein.
• The egg has protein. 
• The glue coast has no protein.
• The bread has no protein.

Conclusion: The bread was a complex sugar,The apple was a complex sugar,The potato was a complex sugar,The glue coast was a simple sugar,The egg was a simple sugar,The milk was a simple sugar.

I was right about the bread,Apple,Potato, being a complex sugar.  I was right about the glue coast,but I was wrong about the Milk and Egg.

Discussion: I found out that most of the proteins are from animals and the different types of simple sugars and complex sugars.