Name: _______________________________ Date:____________________
Period_____
Matter, Energy, and Change Vocabulary Sheet
As you go through this vocabulary sheet, highlight any words that are unfamiliar to you, or any
words that your instructor puts extra emphasis on. Name examples for the vocabulary word in
the provided spaces.
Basics
Chemistry – the science that investigates the structure and properties of matter.
Matter – anything made of atoms.
Examples:
Mass – measure of how much matter
Examples:
Weight – measure of gravity’s pull on the matter
Examples:
Volume – measure of how much space is taken up
Examples:
Physical and Chemical Properties
Physical property does not change the composition of the substance
Examples:
Chemical property can only be observed through a chemical reaction
Examples:
Types of Physical Properties
Extensive Property – depends on how much of the matter there is.
Examples:
Intensive Property – does not depend on how much matter there is.
Examples:
Name: _______________________________ Date:____________________
Period_____
Physical vs. Chemical Changes
Physical change – does not create a new substance.
Example:
Chemical Change – a new substance is created
Example:
The four indicators of chemical change
1. Energy change: heat or light is produced, or a decrease in temperature
2. Production of a gas.
3. Precipitate – a solid is formed when two liquids are mixed together.
What is the clear indicator that a precipitate has formed? The liquid spontaneously
turns into a ____________________.
4. Color change
Classification of Matter
Mixture – two or more pure substances that can be separated by physical changes.
Homogenous Mixtures – two or more substances mixed evenly. All solutions are
homogeneous mixtures.
Examples:
Heterogenous Mixtures – two or more substances mixed unevenly.
Examples:
Element – one of the 109 + pure substances that cannot be separated by chemical change
or physical change and is represented by a symbol. All are found on the periodic table.
Examples:
Compound – made from atoms that are chemically bonded together; Can be separated by
chemical change, but not by physical change. Compounds are represented by a formula.
Examples:
Name: _______________________________ Date:____________________
Period_____
Law of Conservation of Matter – matter cannot be gained or lost in chemical or physical
changes. In other words, matter cannot be created or destroyed. What you start with is
what you end up with!
Law of conservation of Energy– energy cannot be gained or lost. It can only change form.
Example:
Types of Energy: potential, kinetic, electrical, chemical, mechanical, sound, light