Measuring liquid volume Graduated Cylinders Glass or plastic

Measuring liquid volume Graduated Cylinders

Glass or plastic? Plastic will not break. Surface tension exists between glass and liquids which creates a slightly curved surface. This is called the meniscus.

Watch the video to learn how to read volume with a meniscus.

Reading the markings (graduates) Not all lines are worth the same amount….

Process… 1. Examine the number of lines between two printed numbers. 2. Subtract the two numbers. This is the value. 3. Count the number of divisions between the numbers. 4. Divide the value by the number of divisions. 5. This is the value for each line. Ex: 25 -20 = 5 10 divisions So, 5/10 =. 5 Each line worth. 5 ml 21. 5 ml below

Practice 1. Examine the number of lines between two printed numbers. 2. Subtract the two numbers. This is the value. 3. Count the number of divisions between the numbers. 4. Divide the value by the number of divisions. 5. This is the value for each line.

Practice 1. Examine the number of lines between two printed numbers. 2. Subtract the two numbers. This is the value. 3. Count the number of divisions between the numbers. 4. Divide the value by the number of divisions. 5. This is the value for each line.

Practice 1. Examine the number of lines between two printed numbers. 2. Subtract the two numbers. This is the value. 3. Count the number of divisions between the numbers. 4. Divide the value by the number of divisions. 5. This is the value for each line.

Practice 1. Examine the number of lines between two printed numbers. 2. Subtract the two numbers. This is the value. 3. Count the number of divisions between the numbers. 4. Divide the value by the number of divisions. 5. This is the value for each line.