Science Test

type of matter with a fixed composition that can’t be separated by physical means

substance made up of atoms with same identity

materials made of two or more substances that can be separated by physical means

mixture where 2 or more substances uniformly spread throughout

mixture where different materials can be easily distinguished

characteristic of a material that you can observe without changing the substance

Characteristic of a substance that indicates whether it can undergo a certain chemical change

A change in size, shape, or state of matter; substance DOES NOT change identity when it undergoes physical change

A change in one substance to another substance

Definite shape and definite volume

Indefinite shape and definite volume

Indefinite shape and indefinite volume

Closely packed in geometric arrangement

Have more space and slide past each other

Have energy to spread out evenly in container

transfer of energy (how fast molecules moving)

measure of around how fast atoms are moving

change from solid to liquid state

Temperature when a solid melts

change from liquid to solid in state

temperature of when a solid melts

change from liquid to gas

temperature when liquid to gas

only happens on surface of liquid

the ability of a fluid to go upward

All matter is composed of particles Particles are in constant random motion Particles collide with each other and walls of their container