Objective 3 -Physical Science

5.7B - Demonstrate that some mixtures maintain the physical properties of their ingredients.

In an experiment salt and sand are mixed
together. Which of these procedures could be
used to most easily separate the salt from the
sand?

Carbon powder and iron filings are both black
powders. When mixed together, they look like
one black powder. Which of these would be
best to use to separate the iron filings from
the carbon powder?

F A magnifying glass
G Heat
H A magnet
J Water