1. READING BETWEEN THE LINES Estimate one place on non digital equipment. (rulers, graduated cylinders) 6 7 cm 6.42 cm If it is exactly on the line 6.60 cm

2. READING BETWEEN THE LINES Estimate one place on non digital equipment. (rulers, graduated cylinders) 6 7 cm 6.25 cm If it is exactly on the line 6.90 cm

3. READING BETWEEN THE LINES 20 30 cm

4. GRADUATED CYLINDER 20 mL 10 mL 17.2 mL

5. WHAT’S THE DIFFERENCE between 6.6 cm and 6.60 cm The difference is accuracy. 6.6 means somewhere between 6.1-6.9 6.60 means somewhere between 6.56-6.64 More accuracy is not always necessary You must report how accurate you were.

6. MEASURING PRECISELY If possible always measure three times If one measurement isn’t close to the others always measure again. It is always a good idea to have your lab partner take the same reading as you to make sure you are reading it correctly.