Presentation on theme: "Mass is the amount of matter (stuff) in an object. What is mass? The base unit of mass in the metric system is the gram (g)."— Presentation transcript:
Mass is the amount of matter (stuff) in an object. What is mass? The base unit of mass in the metric system is the gram (g).
Volume is the amount of space an object takes up. What is volume? The base unit of volume in the metric system is the liter (L or l).
We will be using graduated cylinders to find the volume of liquids and other objects. Measuring Volume
The curve at the surface of a liquid is called a meniscus. What is the meniscus? The meniscus of most liquids curves up at the sides, making the center appear lower. This happens because the molecules of the liquid attract those of the container. The glass attracts the water on the sides.
Reading the meniscus Read from the bottom of the curve! ALWAYS READ AT EYE LEVEL
What is this measurement?
What is the volume of water in each cylinder?
10 cm 9 cm 8 cm Formula for the volume of a regular object: Volume = length x width x height _____ X _____ X _____ = _____ Measuring Solid Volume The volume of a solid object is expressed in cubic centimeters (cm 3 ) and cubic meters (m 3 ): 10 cm 8 cm 9 cm 720 cm 3
We can measure the volume of irregular objects using water displacement. Amount of H 2 O with object = ______ About of H 2 O without object = ______ Difference = Volume = ______ Measuring Solid Volume 280 mL 200 mL 80 cm 3