2.09 Lab Investigating Biological Compounds

What is starch?

What are chemical indicators and what are they used for?

Which indicator is used to test for starch? How can you use it to test for starch?

What was the purpose of your experiment?

Experimental Methods


Data and observations


Discussion and Conclusion



Answer the following questions:
Which food samples contained starch and what evidence supports your claim?

What did you use for controls in your experiment?

What are some sources of error in your experiment?

How could you modify this experiment?