Chapter 3- 8th Grade

Question 1

What is a substance that cannot be separated or broken down into simpler substances by chemical means?

Answer 1

Element

Question 2

What is a substance made up of atoms of two or more different elements joined by chemical bonds?

Answer 2

Compound

Question 3

What is a solid whose atoms, ions, or molecules are arranged in a definite pattern?

Answer 3

Crystal

Question 4

What is a mineral that contains a combination of silicon, oxygen, and one or more metals?

Answer 4

Silicate Mineral

Question 5

What is a mineral that does not contain compounds of silicon and oxygen?

Answer 5

Nonsilicate Mineral

Question 6

What is the way in which a mineral reflects light?

Answer 6

Luster

Question 7

What is the color of the powder of a mineral?

Answer 7

Streak

Question 8

What is the splitting of a mineral along smooth, flat surfaces?

Answer 8

Cleavage

Question 9

What is the manner in which a mineral breaks along either curved or irregular surfaces?

Answer 9

Fracture

Question 10

What is a measure of the ability of a mineral to resist scratching?

Answer 10

Hardness

Question 11

What is the ratio of the mass of a substance to the volume of the substance?

Answer 11

Density

Question 12

What is a natural mineral whose concentration of economically valuable minerals is high enough for the material to be mined properly?

Answer 12

Ore

Question 13

What is the process of returning land to its original condition after mining is completed?

Answer 13

Reclamation

Question 14

What is a naturally formed, inorganic solid that has a definite crystalline structure?

Answer 14

Mineral