Mixtures
A physical combination of two or more substances.
Mixtures
When a solid becomes a liquid it's called
Melting
When a paper burns into ash is it a physical or chemical change?
Chemical
A chart listing all of the elements of the universe.
The periodic table
When two or more substances are mixed completely.
A solution
When a liquid becomes a solid its called...
Freezing
When a paper is torn in two is it a physical or chemical change?
Physical
A substance that is made up of only one type of matter.
An element
When properties change due to a chemical reaction it is called...
Chemical properties
When a liquid becomes a gas it is called...
Evaporation
When an ice cube melts into water is it a physical or chemical change?
Physical
The smallest part of an element.
An atom
A mixture of two or more elements to make a stronger substance. (Ex. bronze + tin = copper)
Alloy
When a gas becomes a liquid it is called...
Condensation
When iron becomes wet and comes into contact with oxygen it is called...
Rusting
H is the periodic symbol for...
Hydrogen
When a solution is heated until the liquid becomes a gas and the solid is left behind it is called...
Distillation
What is the last phase of the water cycle?
Run-off
When silver reacts to sulfur in the air it is called...
Tarnishing
Ne is the periodic symbolic for...
Neon