Fossil definitions and words 2012

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  • 1. FOSSIL DEFINITIONS Name____________________ Date ______Directions: Match the definition with its correct meaning by writing the word in the blank by thenumber.1. ______________________: a principle that states that Relative datingyounger rocks lie above older rocks if the layer have not beendisturbed2. ______________________: a break in the geological Superpositionrecord created when rock layers are eroded or when sediment isnot deposited for a long period of time3. ______________________: an arrangement of rock layers Geologic Columnin which the oldest rocks are at the bottom4. ______________________: determined by years since Unconformityrock formed (measuring the age of an event or object in years)5. ______________________: determined by the position of Absolute Agethe rock layer to the layers around it (determining an event orobject is older or younger than other events or objects)6. ______________________: a break in the geologic record Relative Agecreated when rock layers are eroded or when sediment is notdeposited for a long period of timeFOSSIL DEFINITIONS Name____________________ Date ______Directions: Match the definition with its correct meaning by writing the word in the blank by thenumber.1. ______________________: a principle that states that Relative datingyounger rocks lie above older rocks if the layer have not beendisturbed2. ______________________: a break in the geological Superpositionrecord created when rock layers are eroded or when sediment isnot deposited for a long period of time3. ______________________: an arrangement of rock layers Geologic Columnin which the oldest rocks are at the bottom4. ______________________: determined by years since Unconformityrock formed (measuring the age of an event or object in years)5. ______________________: determined by the position of Absolute Agethe rock layer to the layers around it (determining an event orobject is older or younger than other events or objects)6. ______________________: a break in the geologic record Relative Agecreated when rock layers are eroded or when sediment is notdeposited for a long period of time
  • 2. 7. ______________________: a fossilized mark that is Fossilformed in soft sediment by the movement of an animal8. ______________________: the remains or physical Trace Fossilevidence of an organism preserved by geological processes9. ______________________: a mark or cavity made in a Moldsedimentary surface by a shell or other body10. ______________________: a type of fossil that forms Castwhen sediments fill in the cavity left by a decomposed organism11. ______________________: a fossil that is found in the Sedimentary Rockrock layers of only one geological age that is used to establishthe age of the rock layers12. ______________________: the type of rock in which Index Fossilmost fossils are found7. ______________________: a fossilized mark that is Fossilformed in soft sediment by the movement of an animal8. ______________________: the remains or physical Trace Fossilevidence of an organism preserved by geological processes9. ______________________: a mark or cavity made in a Moldsedimentary surface by a shell or other body10. ______________________: a type of fossil that forms Castwhen sediments fill in the cavity left by a decomposed organism11. ______________________: a fossil that is found in the Sedimentary Rockrock layers of only one geological age that is used to establishthe age of the rock layers12. ______________________: the type of rock in which Index Fossilmost fossils are found