Doctor K wants to know

More Mass?_____

More Volume?____

Basketball Bowling Ball

Name some properties

1_________________2_________________3_________________4_________________5_________________6_________________

1 Color2 Density3 Electrical conductivity4 Heat conductivity5 Melting temperature6 Boiling temperature

Matter can be:

Fixed mass Fixed Volume Fixed Shape

Solid Yes Yes Yes

Liquid Yes Yes No

Gas Yes No No

solid liquid gas

Table Salt Water

Table Salt Water

Table Salt is NaCl--Sodium ChlorideOne atom Sodium—A soft metal that can cause fire if put in water.One atom of Chlorine—A poison gas

The properties of the COMPOUND are different from the properties of the elements

Sodium Chlorine Salt

Water is H2OOne atom of Oxygen—a gasTwo atoms of Hydrogen—a gas

The properties of the COMPOUND are different from properties of the elements

Oxygen 2 Hydrogen Water

Water is H2OOne atom of oxygen—a gasTwo atoms of hydrogen—a gas

What are these elements good for?

Oxygen

Hydrogen

HO

ElectricCurrent(Energy)

H HO

Water

Gas