Question

Sequence the steps of separating a mixture of sand, salt, and iron filings. Identify which physical property you were using in each step.

____ Mix the sand and salt mixture with water
Physical property used:
____ Boil the salt and water mixture, leaving the salt behind.
Physical property used:
____ Separate the iron filings from the sand and salt by using a magnet.
Physical property used:
____ Use filtration to separate the sand from the salt and water.
Physical property used:
What physical property is used to mix the sand and salt mixture with water?
a) Solubility
b) Magnetism
c) Differences in boiling points
d) Particle size

Answer 1

The steps to separate a mixture of sand, salt, and iron filings involve mixing with water, boiling, using a magnet, and filtration, with the physical properties being solubility, differences in boiling points, magnetism, and particle size.

Step-by-step explanation:

The steps to separate a mixture of sand, salt, and iron filings are:

1. Mix the sand and salt mixture with water, using solubility as the physical property.
2. Boil the salt and water mixture, leaving the salt behind, using differences in boiling points as the physical property.
3. Separate the iron filings from the sand and salt by using a magnet, using magnetism as the physical property.
4. Use filtration to separate the sand from the salt and water, using particle size as the physical property.

When mixing the sand and salt mixture with water, the physical property used is solubility.