Geologic Time Crossword Puzzle
Download and print this Geologic Time crossword puzzle.
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An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.
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QUESTIONS LIST:
- relative dating : approximate age given to a rock layer based on it's position
- erosion : the process by which wind, water, ice, gravity, or other natural forces move sediment over earth's surface
- stratigraphy : study of rock layers to determine geologic history
- isotope : an atom of the same element that has a different number of neutrons in its nucleus and, therefore, a different mass
- absolute dating : an exact age given to a rock layer or fossil based on it's isotope decay
- parent : an unstable isotope
- half life : the amount of time it takes for half an isotope to decay
- sediment : small pieces of eroded rock that is moved by wind or water,
- superposition : law stating that older rock layers are found at the bottom
- geologic column : column created to determine age of rocks and fossils
- daughter : a stable isotope
- radioactive decay : the decay of an isotope