1.1: Elements and minerals Flashcards

1
Q

What are the materials made from the 94 simple substances called?

A

Elements.

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2
Q

What are elements and compounds found naturally occurring in the earth called?

A

Minerals.

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3
Q

What are mixtures of mineral grains/crystals called?

A

Rocks.

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4
Q

What % of Oxygen makes up the Earth’s crust?

A

47%.

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5
Q

What % of Oxygen makes up the entire Earth?

A

30%.

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