Chemistry
Pure Substance (1-1)(1-4)
Element
Compound (1-1)
Atom (1-1)
Molecule (1-1)
Mixture (1-1)
Solid (1-4)
Liquid (1-4)
Gas (1-4)
Phase Change
Solid to Liquid
Meliting Point
Same Temp As Freezing Point
Heat Energy Added
Phase Change (1-4)
Liquid to Solid
Liquid to Gas
Boiling Point
Higher Temp Than Melting Point
Heat Energy Added
Freezing Point
Same Temp As Melting Point
Heat Energy Lost
NO Definite Shape
Definite Shape
NO Definite Shape
Definite Volume
Definite Volume
NO Definite Volume
(Atoms and/or molecules vibrate in position - NOT free to roam around
Atoms and/or molecules are relatively close together and move around randomly and slowly
Atoms and/or molecules are far apart and moving very fast
Melting Point (1-2) (1-4)
Freezing Point (1-2) (1-4)
Equal Temp
Boiling Point (1-2) (1-4)
Higher temp than Melting Point
Gaining Heat
Losing Heat
Closed System (1.5)
(The balloon is stopping the air from escaping after the experiment, so this is a closed system.)
Ex. Oxygen (O2), Nitrogen (N2), and Hydrogen (H2)
Ex. Water (H2O) and Sodium Chloride (NaCI)
Ex. Oil and Water, Sand and Water, Salt and Oil
Physical Changes (1-2)
Chemical Changes (1-2)
Size
Shape
Color Change
Phase
Grinding
Melting
Dissolving
Evaporating
Light
Heat
Sound
Bubbling
Odor Change
Color Change
Demonstrates that the number of atoms in the reactants is the same number as the number of atoms in the products (aka a Balanced Equation.)
A Balanced Equation uses subscripts and coefficients to demonstrate that the number of atoms that goes in is the same number as the atoms that go out.
: 
