7th Grade 4.2.1 Quiz

1

In an undisturbed rock formation, the rocks on the bottom are the oldest.

1

1

5

Draggable item		Corresponding Item
carbonization		minerals replace the original tissues or fill in the tiny spaces in and between the cells
original material		heat and pressure preserved the remains of an organism and only a thin layer of carbon is left
trace fossil		made from an impression of an organism that has been filled with rock forming minerals
mineralization		provides evidence of the activities of ancient organisms
molds and casts		mummification or freezing

1

2

When the last individual of a species dies, that species is considered _______ .

1

1