FOSSIL RECORD Crossword
This printable crossword puzzle on the topic of Rocks & Minerals has 14 clues. Answers range from 3 to 22 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
OCCURS WHEN MINERALS CARRIED BY WATER ARE DEPOSITED AROUND A HARD STRUCTURE
FORMS WHEN FLOWING WATER REMOVES ALL OF THE ORIGINAL BONE LEAVING AN IMPRESSION
RECORDS THE ACTIVITY OF AN ORGANISM
ORGANISMS THAT BECOME TRAPPED IN TREE RESIN AND HARDEN INTO AMBER
AN ENTIRE ORGANISM BECOMES ENCASED IN ICE, ASH OR BOGS
ESTIMATES THE TIME DURING WHICH AN ORGANISM LIVED
USES THE NATURAL DECAY RATE IN FOSSILS (CARBON-14) TO FIND THE ABSOLUTE AGE
FOSSILS OF ORGANISMS THAT EXISTED ONLY DURING SPECIFIC TIMES
REPRESENTATION OF THE HISTORY OF THE EARTH
TENS TO HUNDREDS OF MILLIONS OF YEARS
TENS OF MILLIONS OF YEARS
SEVERAL MILLION YEARS
CLOUD OF GAS AND DUST IN SPACE
RNA MOLECULES THAT CAN CATALYZE SPECIFIC CHEMICAL REACTIONS
