Earth Systems - Unit III Review (Ch#'s 2-3)

Ch#2 - What is a naturally occurring, inorganic solid with an orderly crystalline structure and a definite chemical composition?

• a mineral

• an element

• an isotope

• a compound

Ch#2 - The most common mineral group in Earth’s crust is the ____.

• oxides

• carbonates

• sulfides

• silicates

Ch#2 - Which of the following properties is generally the least useful in identifying minerals?

• hardness

• streak

• clevage

• color

Ch#2 - Mohs scale is used to determine what property of minerals?

• cleavage

• density

• hardness

• luster

Ch#2 - What is true about minerals?

• They are naturally occurring and inorganic.

• They are organic and inorganic.

• They can be synthetically produced.

• They are occasionally found in a liquid state.

Ch#2 - How could you determine if a sample of gold is pure?

• Compare the sample’s density with that of pure gold.

• Compare the sample’s color with that of pure gold.

• Determine whether the sample is magnetic.

• Determine whether the sample will fizz in contact with hydrochloric acid.

Ch#2 - The most abundant elements in Earth’s crust are ____.

• aluminum and potassium

• halite and coal

• oxides and carbonates

• oxygen and silicon

Ch#2 - What are the building blocks of minerals?

• rocks

• elements

• isotopes

• electrons

Ch#2 - When two or more elements bond together in definite proportions, they form a(n) ____.

• ion

• atom

• nucleus

• compound

Ch#2 - What determines the properties of a mineral?

• size and shape

• composition and age

• composition and structure

• structure and size