Science Flashcards
(37 cards)
Convergent plate boundary
is when the two plates come together
Who is Alfred Wegner
he is a scientist who discovered the theory of plate tectonics and pangea
Divergent plate boundary
is when the two plates pull apart
suspension is a type of mixture that contains
big chunks that are suspended in a liquid
a colloid is a type of mixture that contains
2 substances mixed to the point where they cannot be separated and are not always easy to observe
solution is a type of mixture
of molecules that are perfectly mixed together, human eye cannot see individual molecules
an element is made up of
one kind of atom
A substance is the same as a compound and contains
two or more different elements, chemically bonded together. eg. NaCl
a mixture is when
two or more substances are combined but each substance keeps it physical properties
the solute is
the substance being dissolved
the solvent is
the substance its dissolving into
the solution is
a mixture of the solute and solvent
saturated is when
you reach a point that no mor will dissolve
insoluble is when
the solute is added to something it doesn’t dissolve into
the filter is
the material being used
the filtrate is
the substance moving through the filter
Residue is the
substance left behind in the filter
filtration is
the process.
what is chromatography
it is the seperation of a solute from a solvent, to create a chromatogram.
what does a chromatogram show
it show the more soluble solvent further up the paper anf the less soluble closer to the baseline
what is a chemical change
a chemical change is a process by which two or more substances may be transformed into one or more new substances.
what is a physical change
a physical change involves a change in states of matter, texture, shape, size, volume, mass, weight or density
distillation is where
one part of the mixture is evaporated to be condensed elsewhere
