1.1: Elements and minerals Flashcards
1
Q
What are the materials made from the 94 simple substances called?
A
Elements.
2
Q
What are elements and compounds found naturally occurring in the earth called?
A
Minerals.
3
Q
What are mixtures of mineral grains/crystals called?
A
Rocks.
4
Q
What % of Oxygen makes up the Earth’s crust?
A
47%.
5
Q
What % of Oxygen makes up the entire Earth?
A
30%.
