Separating Earth's Mixtures (Science 8 - Alberta, G8 U1 T3)

Pure iron needs to be used in the creation of alloys such as steel and cast iron. Before iron is purified, it is often found, when it is mined, with other chemicals. What is iron called when it is first mined and still mixed with other chemicals?

• iron ore
• unrefined iron
• raw iron
• feric iron

The process of removing salt from salt water is critical for humans. What is the name of this process?

• desaltification

• desalination
• salt filtration
• salt extraction

Using Table 1.4, rank the following waterbodies from lowest salinity to highest salinity:

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Tags

NGSS.MS-ESS2-4

Match each of the following examples with the process used to create them:

• Separating heavy oils from light oils

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• Separation of chemicals in a solution

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• The removal of water from food

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• Removing salt from salt water

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Rank the following products, all refined from crude petroleum, from the lightest to the heaviest:

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Match the following fractions taken from raw petroleum with the common uses of such products:

• Waxes

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• Diesel

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• Kerosene

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• Jet fuel

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• Gasoline

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Tags

NGSS.MS-PS1-3

Filtration and distillation can often require various pieces of laboratory equipment. Match each of the pictures below to their proper name:

• A funnel

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• A test tube

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• A beaker

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• A retort stand

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• A flask

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Through various steps of filtration and distillation, different final products can be created from the same initial product. Which three of the following are created from sugar cane or sugar beets?

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When gold is refined, the final product is ranked on a scale from 0-24 on how much gold is present. What are the units for the purity of gold?

• auras

• knights

• arches

• karats

The scientific name for the most table salts is sodium chloride. Using the symbols for these, the formula for sodium chloride is: ​ (a)   ​

• NaCl
• SoCl
• SoCh
• SaLt
• NaLt

Tags

NGSS.MS-PS1-1