Name: ________________________
Starch Activity
1. What color is the iodine solution?
a. Pink
b. Brownish
c. Yellow
d. Green
2. Circle the food that turns black when you add iodine:
a. Peanut butter
b. Cereal
c. Spaghetti
d. Butter
e. Crackers
f. Milk
3. Which of the foods you tested have starch in them? Circle your answer.
a. Peanut butter
b. Cereal
c. Spaghetti
d. Butter
e. Crackers
f. Milk
4. Which of the mixtures in your cup had the darkest color after you added the iodine
mixture?
5. What do you think the color will be if you cup with one cracker and ten tablespoons of
water in it?
Milk Activity
1. Does milk have starch?
2. What happens when you add vinegar to the milk?
3. Does milk have proteins?
Name: ________________________