quarter 1 short answer Flashcards
1
Q
what are 2 chemical elements found in quartz
A
siO2
2
Q
what makes some sediments rounded and angular
A
the sediments will be rounded if they are in a stream because they would be rowing but they would be angular if they just fall
3
Q
how do contour lines indicate they flow of a river
A
āvā
4
Q
how is the formation of diamond different form quartz
A
diamond is made of carbon and quartz is made out of silicon and oxygen. diamond is also much harder that quartz.
5
Q
describe what causes vesicular texture in some volcanic rocks
A
glassy texture
6
Q
how does mineral composition affect rock color
A
if the lava is high in sillica the rock will be lighter colored is the lava is high in sillica the rock will be darker
