Lesson: Measuring Liquid Volume
DO NOW: Define volume. Review. (The amount of space an object takes up)
STATE: In today's class we are going to learn about the tool used to measure the volume of a liquid. Just like when you use a ruler to measure length, scientists use graduated cylinders to measure the volume of a liquid. Before you can actually use a grauated cylinder, it is important to know how to read one. Today we will learn how to read a graduated cylinder and tomorrow we will practice using real ones.
NEXT: Show students a graduated cylinder and explain that it's basically a ruler that measures in 3 dimensions, as opposed to a ruler, which only measures 1 dimension. Again, reiterate that volume is a 3-d measurement. Explain that the basic unit for volume is liter (L) and that most graduated cylinders measure in milliliters (mL).
MODEL to students:
Give (Student worksheet 1) to class and model several examples to the class.
Step 1: Identify the scale of the graduated cylinder. Is each line worth .1mL, 1mL, 2mL?
Step 2: Look at the bottom of the menicus to take the reading to determine the volume of the liquid.
NEXT: Have students practice by completing (Classwork worksheet 1) with a partner. Review with class.
Check for understanding: Circulate around the room and have students tell you the volume of different graduated cylinders.
Homework: (Homework sheet 1)
|Homework worksheet 1||
|Classwork worksheet 1||
|Student worksheet 1||