year 8 chemistry terms (part A)

Pregunta	Respuesta
data	Information collected in an experiment
error	Is the discrepancy between a computed observed or measured value or condition and the true value or condition
primary data	Data collected by yourself
mistake	is an error that someone can be blamed for
secondary data	Data collected by someone else form some other source.
hypothesis	An educated guess on what will happen
variable	An element, feature or factor liable to change
controlled	A variable that is controlled and stays the same
independent variable	A variable that is changed during an experiment
dependent variable	A variable that is measured during an experiment
fair test	is when the test is conducted in such a way that the data collected from that test is as accurate as it can be.
atom	The smallest component of an element
molecule	A group of atoms bonded together representing the smallest fundamental unit of a chemical compound.
element	An element is a substance with only one kind of atom
compound	2 elects that are bonded together through a chemical reaction
metal	A hard solid material that is an electrical and thermal conductor
non-metal	An element that is not a metal and does not resemble any characteristics of a metal
malleable	A metal that can be hammered into sheets
brittle	A metal that is hard and rigged but is not strong, breaking easily into fractures like glass
periodic table of elements	A table of chemical and natural elements arranged in columns of similar chemical structures and characteristics and the row of increasing atomic number
monoatomic	Consisting of one atom
alloy	The combination of a metal with one or more metals or other substances
mixture	2 or more substances that are combined together but do not go through a chemical reaction

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