Chapter 3: section Chapter 3: section 11Page 76- 83Page 76- 83

Date: 9/27/10Date: 9/27/10

Warm UpWarm Up 9/27/109/27/10

What weighs more, a pound of feathers What weighs more, a pound of feathers or a pound of bricks? Why? or a pound of bricks? Why?

Matter Matter

Anything that has Anything that has MASSMASS and takes up and takes up space (space (VOLUMEVOLUME) )

Mass Mass

A measure of the amount of matter that A measure of the amount of matter that makes up an object makes up an object

Mass Vs. Weight Mass Vs. Weight

Weight is a measure of the gravitational Weight is a measure of the gravitational pull on an object. pull on an object. Weight can change, mass does not. Weight can change, mass does not.

Volume Volume

All matter takes up space, the amount of All matter takes up space, the amount of space the object takes up is its volume. space the object takes up is its volume.

Volume: Liquid Volume: Liquid

Graduated cylinders: measure liquidsGraduated cylinders: measure liquids Measure at the Measure at the

meniscus meniscus (lowest point of the(lowest point of the

curved surface)curved surface)

Volume: SolidVolume: Solid

Calculate regular objects: Calculate regular objects: Volume = length x width x heightVolume = length x width x height Volume = area x height Volume = area x height

OR OR

Displaced Volume: Displaced Volume: 1. Measure amount of liquid. (Volume 1)1. Measure amount of liquid. (Volume 1) 2. Add object 2. Add object 3. Record new volume (Volume 2) 3. Record new volume (Volume 2) 4. Calculate: volume of object = Volume 2 – Volume 1 4. Calculate: volume of object = Volume 2 – Volume 1

1 mL = 1 cm1 mL = 1 cm33

Liquids = Liters Liquids = Liters Solids = metersSolids = meters33

Homework Homework

Done in Notebook: Done in Notebook: Section Review: Page 83 #s 3-7Section Review: Page 83 #s 3-7

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