Home FAQ About Log in Subscribe now

	Java Games: Flashcards, matching, concentration, and word search.

Geologic Time

Tools

A	B
index fossil	a fossil of an organism that lived during a short time and was wide spread
law of superposition	states that older layers of rock and sediment are found below younger ones
intrusion	magma that has started to rise to the surface entering in to other rock layers
unconformity	a gap in the relative age of rock layers where a much younger layer is on top of an older layer
geologic time scale	a record of geologic events and life forms in Earth's history

Lone Star Middle School

This activity was created by a Quia Web subscriber. Learn more about Quia
	Create your own activities