My group has choose too do the iodine test to test for starch. We also choose to test with alcohol to test if it would fizz. Vinegar to test if it would fizz. Physical property test what it looks like, what it feels like ,and what it smells like.
Physical property test ,what it feels like what it smells like, and what it looks like.
Vinegar test , to see if it would fizz and it did fizz a lot.
Alcohol test , to see if it would fizz but it did not it just turned to a paste like liquid.
Iodine test was to test for starch and it tested with starch.
Results and conclusions
Iodine tuned the powder black so it has starch. When we did physical properties it felt sticky. Vinegar was to see if it fizzes the results where clear it did. Alcohol to see if it fizzes and the results where it did.I think the mysterious powder is red blue and purple.