notes gb lab 01 02 properties r us measuring matter

NotesNotes

Today we will: Observe different substances and record

your observations Identify and recognize General, Physical

and Characteristic properties of matter Describe how physical properties can be

used to gather information about a substance.

Physical Properties Color Conductivity Luster Odor Hardness Magnetism Shape Malleable Ductile

Properties of a substance that can be observed without changing the substance

Physical Properties may include but ar enot limited to: Color Texture Shape Conductivity Size Luster Hardness Odor

Red, blue , yellow, green or a mix of colors

How smooth or rough something feels to the touch

Round, jagged, square etc.

That which allows heat or electricity to pass through is considered “Conductive”

How large or small something is

Quality of light reflection Shiny or dull

How soft or hard a substance is. Can it easily be

scratched with a fingernail, a steel nail?

Describes the specific smell if any

The physical property of a substance that allows the substance to be hammered and shaped into sheets.

The physical property of a substance that allows the substance to be stretched into a wire

NotesNotes

The student will: Make accurate measurements using the

International System of Units (SI-metric) Select and use appropriate tools for

gathering data

The student will: Use mathematical concepts to collect,

analyze and report data Calculate mass, volume of substances Investigate and determine physical

properties of matter

General PropertiesCharacteristic PropertiesMassVolumeMeanMedianModeRange

Properties like mass and volume that all substances have.

They do not help with identification of the substance

Everything has mass (M) and volume (V)

The amount of matter in an object or substance▪ Measured with a

triple-beam-balance▪ Measured in grams

(g) or Kilograms (Kg)

The amount of space something takes up Liquids are measured

in milliliters (mL) Solids are measured in

cubic centimeters (cm3)

To calculate the volume of a regular solid such as a cube:Measure the length (l) the height (h)

and the width (w). Then multiply l x h x w to get the

volume

To find the volume of an irregular solid use the water displacement method using a graduated cylinder

Properties unique to a substance. They help identify the substance▪ Density Boiling Point▪Melting Point Freezing Point▪ Flammability Combustibility▪ Reactivity

Mr. Kershes ……….

NOT!

The average in a series of numbers when they are first added and then divided by the number of addends

6+8+5+4+2+10 +7= 4242/7 = 6Mean = 6

The middle number in a series of numbers when they are put in order from lowest to highest

6, 8, 5, 4, 2, 10 , 7 2, 4, 5, 6, 7, 8, 10 6 is the median number

The most frequently repeated number/value in a series of numbers

2, 4, 5, 6, 6, 6, 7, 8, 106is the Mode

The difference between the highest and the lowest numbers in a series of numbers It can be written as

Lowest – Highest or as the numerical difference between the lowest and highest numbers.

2, 4, 5, 6, 7, 7, 7, 8, 10▪ Range Lowest t o

Highest 2 – 10▪ Range difference =

8