• has mass and takes up space
• can be living and non-living
• can change but not be created or destroyed
• comes in solid, liquid, and gas

• has a definite shape and definite volume
• example would be an ice cube
• packed together closely

• no definite shape but it does have a definite volume
• water is a good example of this
• moves freely and is loosely packed together
• takes the shape of the container that holds it

• has no shape or volume
• very loosley packed
• can spread out indefinitely unless constrained by a container

molecules of a solid are tightly packed together to give a definite shape and volume.

it would look like a domino packed with 15 dots

the characteristics of a substance that can be observed or measured without chaning the substance; examples include

-mass               -temperature

-weight             -conduction

-volume            -hardness

-density            -magnetism

• use a graduated cylinder, beaker, or flask to measure this
• formula is length x width x height

• tells you how tightly packed particles are in an object
• how much mass is in a certain volume of matter
• formula is d = m/v

• it changes to a new substance and cannot be reversed; examples would be:

-fried egg                -tarnished copper

-baked cake             -digested food

-rusty nail               -burning fossil fuel

-lit match                -photosynthesis

properties such as:

• combustion or ability to burn
• reaction to acid
• oxidation, such as rusting

are all examples of...

it does not change what the substance is made up of and can be reversed; examples are:

-chopping wood                   -shaping clay

-tearing paper                      -glass blown

-melting ice                         -wood sanded

-writing w/chalk                   -boiling water

-mixing sugar with water