A state of matter that has no fixed shape or volume
Gas
A _______ is a state of matter with a fixed volume but no fixedshape.
What is a liquid?
temperature at which a substance changes from a liquid to a solid is called what ?
What is freezing point?
smallest basic unit of matter
when we mention "particles" we are talking about atoms
what is an ATOM
A measure of the amount of matter present in a given volume of substance.
Density
matter vs mass
mass is the amount of matter in an object
matter is anything that has mass and takes up space
A _______ is a state of matter with a fixed shape and volume.
What is solid?
What are the 3 states in the PICTURE above
Solid , LIQUID , GAS
what is an molecule?
when two or more atoms bond together or combine
example H2O
Define and Give 2 examples of chemical change.
The change from one substance to another.
wood burning turns to ash and Ice melting into water
A characteristic of a substance that can be observed or measured without changing its composition
What is physical property?
Density describes the relationship between ____ and ____.
mass and volume
A liquid has a definite volume and has a definite shape.
TRUE OR FALSE
FALSE
A liquid has a definite volume but DOES NOT have a definite shape.
Evaporation is a change from a gas to a liquid
TRUE OR FALSE.
FALSE. Its Condensation
Evaporation is a changing liquid to vapor
How can matter change from a liquid to a solid? What happens to the particles? Give example
Liquid can be cooled into a solid. As the particles cool they be come less active and move closer.
what are the 5 senses we use in science?
your 5 senses (hearing, seeing, touching, tasting, and smelling)
What is the definition for Element?
a substance that only contains one type of atom
The temperature at which a substance changes from a solid to liquid
What is melting point?
when a liquid's temperature increases to a certain level this begins to occur
boiling point
What is a change of state?
A change in matter from one state to another is called.
How is the shape of solid matter different from the shape of liquids and gases?
Definite Shape. Particles form a set pattern.
Atoms and _____ are always moving.
what are molecules
A change in the physical substance but not the actual substance itself
Physical change
The molecules in solids are loose and not together.
TRUE OR FALSE
FALSE. The molecules in solids are closely & tightly packed
heat changing H2O into steam is an example of what kind of change?
wood rotting is an example of what kind of change ?
physical change
chemical change