Flashcards
Fossils, Relative, and Absolute Age Index Cards (7th Grade)
Cards in this deck (23)
- 1Fossilpreserved remains, traces, imprints of organisms that lived a long time ago
- 2Carbon Filmorganisms buried in sediments that slowly decay while being squeezed and slow-cooked
- 3Castwhen a mold fills with sediment, and forms the shape of the original animals
- 4Moldwhen only the shape of the animal is preserved in hardened rock after the soft parts decay
- 5Trace Fossilevidence of the organism’s existence; not the actual organism
- 6Index Fossilfossils whose age has already been determined by scientists
- 7Original Remainswhen actual body parts of the organism is sealed in tar, amber, or ice
- 8Relative Datingthe science of determining the relative order of past events without necessarily determining their absolute age
- 9Relative Agetells how old a rock layer is compared to another layer; not the exact age
- 10Principle of Superpositionin undisturbed rock layers, the oldest rock is on the bottom and youngest on the top.
- 11Unconformitygaps in rock sequences or areas where erosion of the rocks have occurred
- 12What are conditions that increases fossil formation?The conditions that increases fossil formation is when the fossil is buried, protected from decay, or from the hard body parts.
- 13Rocks in different locations formed at the same time if?Rocks in different locations are formed at the same time if there is the same type of rock, the same fossil found in rock, or a similar sequence.
- 14What are the types of unconformities?The types of unconformities are disconformities, nonconformities, and angular unconformities.
- 15Disconformity
- 16Nonconformity
- 17Angular Unconformity
- 18How can you apply the Principle of Superposition?I can apply the Principle of Superposition by showing that the sedimentary layers are deposited in a time sequence, with the oldest on the bottom and the youngest on the top.
- 19Faults are what than the layers they cut through?Faults are younger than the layers they cut through.
- 20An igneous intrusion is what than the laters they cut through?Igneous intrusion is younger than layers they cut through.
- 21Erosion surfaces indicate?Erosion surfaces indicate unconformities.
- 22Horizontal Layers are?Horizontal layers are undisturbed.
- 23How many years in one half life?5,730 years
Information
- Description
- Fossils, Relative, and Absolute Age Index Cards (7th Grade) by Irene Kim
- Created by
- irenepapers · Jan 2015
- Updated
- Nov 15, 2016
- Views
- 101
- Tags
- Rating