How to read a graduated cylinder

How many digits should you write when you read a graduated cylinder? Start with the spaces between the marks—not with how many decimal places look right. In this lesson, we read two different scales. One has marks 10 mL apart, so we estimate the ones digit. The other has marks 1 mL apart, so we estimate the tenths digit. You'll see how to read the bottom of the water's meniscus, identify the certain digits, and include one estimated digit. You'll also see why adding more digits doesn't give you a better measurement. Try this before you write an answer: say what one space represents, then point to the digit you're estimating. That gives you a reason for the number you report. Which part trips you up: counting the spaces or choosing the last digit? 0:00 What can the measuring tool show? 0:19 Find the scale interval 1:02 Read the water's meniscus 2:06 Why not add another digit? 2:29 Read a finer scale 3:38 Precision isn't automatically accuracy 4:03 Certain and estimated digits #Chemistry #GraduatedCylinder #SignificantFigures Watch the full lesson, Accuracy, Precision & Significant Figures: Why the Rules Work:    • Accuracy, Precision & Significant Figures:...