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Grade 8 > 1\28\25 > Flashcards

1\28\25 Flashcards

1
Q

Do all minerals have a crystal structure?

A

True

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2
Q

Some minerals were once living things. True or False?

A

False

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3
Q

Most minerals can be identified by color alone. True or False?

A

False

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4
Q

When magma cools deep beneath the surface, it forms small crystals. True or False?

A

False

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5
Q

A mineral’s crystal always has the same shape. True or False?

A

True

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6
Q

Copper and silver are a kind of mineral called ______.

A

Metal

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7
Q

What is the hardest known mineral?

A

Diamond

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8
Q

A solid mixture containing at least one metal is known as a ______.

A

Alloy

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9
Q

The amount of mass in a given volume of a substance is known as ______.

A

Density

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10
Q

A mineral that splits in a flat piece has a property called ______.

A

Cleavage

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11
Q

______ is the process of removing metal from an ore.

A

Smelting

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12
Q

A hard colorful mineral that is shiny is called a ______.

A

Gemstone

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13
Q

A rock that contains a mineral or other useful minerals is called ______.

A

Ore

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14
Q

A mineral is a ______.

A

Solid

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15
Q

Mineral crystals form when magma ______.

A

Cools

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16
Q

A narrow band of minerals that lies between rock layers is called a ______.

A

Vein

17
Q

The color of a mineral’s powder is called ______.

A

Streak

18
Q

If a mineral is described as waxy, you are describing the mineral’s ______.

A

Luster

19
Q

A mixture in which one substance is dissolved into another substance is called a ______.

A

Solution

20
Q

Minerals that do not split evenly into flat pieces are called a ______.

A

Fracture

21
Q

When a solution reaches the bottom and evaporates, what is the general word that describes this process?

A

Crystallization

22
Q

What two colors make silver?

A

Yellow and purple

23
Q

The property of pyrite is different from gold because it has ______.

A

Luster

24
Q

How can you tell pyrite from gold?

A

Scratch them against each other

Grade 8 (19 decks)

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