Braineos2

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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