when substance changes shape, size and form. ex. break glass, chop wood
Physical change
when partical of 2 or more substances are rearranged to form NEW substance. Ex burn
wood,rustmetal
Chemical Change
smallest part of an element that still has element properties
Atom
a substance that cannot be broken into another substance
Element
a homogenous mixture of two or more substances
solution
Solid liquid gas
Three states of matter that we studied
Group of atoms held together by bond
molecule
two or more substances that are mixed but NOT chemically
mixture
two or more elements joined by chemical bond
Compound
Proton, neutron, electron
What are 3 subatomic particles that make up an atom
With added energy or pressure causes chemical or physical change
How does matter change from one state to another
matter is neither created nor destsroyed
Law of Conservation of Matter
mass, charge, # of protons, electrons and neutrons. Metals, semimetals and non
metals,liquids, gases and solids
Things you know about elements by looking at periodic table
the smallest part of an element that still has element properties
Atom
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