earth and the atmosphere Flashcards
1
Q
what are the four layers of the earth
A
crust mantle inner core outer core
2
Q
what is a rock made up of
A
a rock is made up of grains that fit together
3
Q
what is it called when the grains are put together and there are no gaps
A
crystals and the grans are interlocking
4
Q
what is a grain made up of
A
a grain is made up of a mineral which is a chemical compound
5
Q
what is it called in other rocks were it is not put together
A
there are non-interlocking
6
Q
what is a sedimentary rocks made up of
A
small grains that often are weakly held together
7
Q
what can sedimentary rocks contain
A
sedimentary rocks can contain fossils of animals
8
Q
what are the three types of weathering
A
physical, chemical and biological
