can i get some help in filling in these blanks

Zoom in on volumeter and record starting volume levels for time 0 in Lab Dato Zoom out. Turn on light: Start timer. Read volume levels at 5 minutes. Record in Lab Data Restart timer. Read volume levels at 10 minutes. Record in Lab Data Restart timer. Read volume levels at 15 minutes. Record in Lab Data Restart timer. Read volume levels at 20 minutes. Recor in Lab Data Did you accurately measure the volume? Rateoftolumechange(hrmL)=Time(min)finalvolume(mL)initialcolume(mL)60(hrmin) How to calculate Rate of Yolume chanse Green light Blue light Rate of photosynthesis Rafeofphotosymthesis(hrmL)=Rateofvotumechangeivh(hrmL)-Rateofvolumechangeccerod(hrmL)