|
LABORATORY
EXPERIMENTS:
SEPARATING
MIXTURES.
FILTRATION.
We are going to separate
a mixture of water and
sand
using a method called filtration. You need a precipitation beaker,
another receptacle for the mixture of water and sand, a funnel and
some filter paper:
-
Put the funnel into
the precipitation beaker
and
then put the filter paper into the funnel.
-
Pour the mixture into
the filter paper.
-
Remove the sand in
the filter paper.
DECANTING.
We are going to separate
a heterogeneous mixture
of
two liquids, water and oil:
-
Leave the mixture to
rest until the particles
of
the liquid with the least density (oil) settle on top of the particles
with the highest density (water).
-
Use a spoon or a
syringe to separate the
liquid
that is on the top of the beaker.
-
To completely
separate the two liquids you
can use
other laboratory apparatus.
SEPARATING BY MAGNETISM.
-
We are going to
separate a heterogeneous
mixture of
sand and iron particles using a magnet. If you uses a sheet of paper
will help you to separate iron particles from the magnete.
-
After that you can
weigh the mixture and then
the
sand without iron. Which is the iron sand percent in the mixture?
Your teacher will show you other experiments. Write
about them and make a drawing of the experimental devices.
|