Thursday, October 24, 2014In your journal, write today’s date. Then

write the following notes.

Physical Properties of MatterCharacteristics observed without changing

the composition of the matterExamples: color, shape, smell, texture,

mass, density, state of matter, melting point

What elements are Al, S, Pb, Fe, C and Cu?

STATE OF MATTER IS A PHYSICAL PROPERTYAll elements can exist in a solid, liquid, gas,

or plasma state under the right temperatures.

Change of State is a Physical Change

Tungsten has the highest melting point of any element - 3422°C

It is hard to study because we can’t find a container to hold it in. There is a compound that has a slightly higher melting point but melting tungsten in it has not been done.

Liquid tungsten is so hot, if you dropped it into a lava flow, the lava would freeze the tungsten.

GalliumWhat is the atomic number of Gallium?What does that tell you about the atomic

structure of gallium? (protons identify the element)

How many electron rings? Valence electrons?

Gallium is a metal with a very low melting point – just above room temperature.

http://www.youtube.com/watch?v=cvRcUeWjBu0

Today’s LabToday we will be looking at some physical

properties of elements. The properties we will discover are:

Conductivity vs Insulation (does it conduct electricity)

Magnetic vs Non-MagneticLuster (shiny) vs DullMalleability (moldable or shapeable) vs

Brittle (breaks easily)

Physical Properties of MetalsStation 1 __Conductor_____Insulator_  Station 2 Magnetic_ Non-Magnetic  Station 3 Luster Dull____  Station 4 Malleable _Brittle __

Rules and Guidelines for the Lab

1. Demonstrate safety practices2. Read each station card carefully before

beginning your test3. Follow all directions4. Use your science journal (data table) to

record your data5. Discuss possible explanations6. Leave your station clean and organized.