vocabulary
definition of matter
anything that has mass and takes up space
definition of triple beam balance
A tool scientists use to measure mass
definition of a physical change
changes of matter in size or shape that does not change the type of matter
definition of solid
has a definite volume and shape
definition of a neutron
A subatomic particle that has no charge and is found in the nucleus of a atom
definition of volume
amount of space something takes up
definition of graduated cylinder
A tool scientists use to measure volume
definition of a chemical change
A change that occurs when atoms link together in a new way creating a new subtance different from the original
definition of liquid
has a definite volume but no definite shape
definition of a proton
A subatomic particle that has as positive charge and is found in the nucleus of a atom
definition of mass
the amount of matter in as object
what is triple beam balance used for
mass
example of physical change
steam
definition of gas
has no definite volume or shape
definition of a electron
A subatomic particle that has a negitive charge and is found in the electron cloud outside the nucleus
definition of compound
A chemically bonded combination of 2 or more elements
what is graduated cylinder used for
volume
example of chemical change
burning wood
how are molecules of a solid arranged
moleucules are tightly packed
definition of a atom
basic unit of matter smallest part of a element
definition of element
A pure substance made of one kind of atom
definition of medtric system
the decimal measuring system based of meters letters and grams based of length of length capacity and mass
what is a characteristic of a physical change
production of heat light or sound
molecules of a gas
molecules move freely
where do all of the protons and neutrons live
inside of the nucleus