place one drop of iodine somution into each depression on the spotting tile
Step 2
set up water baths for every temperature you want to test (suggest one cold with ice,one at room temperatur, one around body temperature 35-40 °C and one above 50 degrees
step 3
measure out 5cm^3 of star h solution,using the measuring cylinder or syringe, into 4 different test tubes
step 4
place one test tube of starch solution into each water bath