Dating Earth's History Crossword
This printable crossword puzzle on the topic of Rocks & Minerals has 10 clues. Answers range from 5 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
The preserved remains or traces of an organism that lived in the past
An igneous rock layer formed when magma hardens beneath Earth's surface.
An igneous rock layer formed when lava flows onto Earth's surface and hardens.
A break in the earth's crust
The transfer of energy by electromagnetic waves
A record of the geologic events and life forms in Earth's history.
A technique used to determine which of two fossils is older
The top rock layer and its fossils is the youngest and the bottom is the oldest.
a fossil that is useful for dating and correlating the strata in which it is found.
The transfer of energy by electromagnetic waves
