The puzzles are composed of vocabulary and terms related to geologic time and dating earth history. Includes crossword puzzles (one-sided and two-sided handouts) and a word search.
The crossword puzzle consists of short clues that provide starting points for students to begin investigation.
Keys are included, along with a word list (helpful for students who need extra assistance).
The Preview File provides a sample of the two-page crossword puzzle format.
Note: The puzzles were written using the armoredpenguin.com Internet site.
4.6 billion years
Geologic time scale
Theory of evolution