Podcast
Questions and Answers
Geologists use dating techniques to determine the age of ______
Geologists use dating techniques to determine the age of ______
rocks
Relative dating uses fossils, which are prehistoric remains preserved in ______
Relative dating uses fossils, which are prehistoric remains preserved in ______
rock
Sedimentary rocks are useful in relative dating because they are formed from fragments of different types of ______
Sedimentary rocks are useful in relative dating because they are formed from fragments of different types of ______
rocks
The principle of superposition states that in any undisturbed sequence of rock layers, the youngest rocks are usually on the top and the oldest layer of rocks would be at the ______
The principle of superposition states that in any undisturbed sequence of rock layers, the youngest rocks are usually on the top and the oldest layer of rocks would be at the ______
Relative dating is used to determine whether an object is ______ or younger
Relative dating is used to determine whether an object is ______ or younger
FOSSILS are the preserved remains or traces of plants, animals, and other organisms from the ______
FOSSILS are the preserved remains or traces of plants, animals, and other organisms from the ______
INDEX FOSSILS serve as a guide or indicator of certain geologic ______
INDEX FOSSILS serve as a guide or indicator of certain geologic ______
ERAS are divided into smaller subdivisions called ______
ERAS are divided into smaller subdivisions called ______
The PHANEROZOIC EON is the most recent eon which is about 500 million years ______
The PHANEROZOIC EON is the most recent eon which is about 500 million years ______
A preserved remains or traces of plants, animals, and other organisms from the ______
A preserved remains or traces of plants, animals, and other organisms from the ______
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Study Notes
Dating Techniques
- Geologists use dating techniques to determine the age of rocks and rock layers.
Relative Dating
- Relative dating uses fossils, which are prehistoric remains preserved in rock layers.
- Sedimentary rocks are useful in relative dating because they are formed from fragments of different types of rocks and fossils.
- The principle of superposition states that in any undisturbed sequence of rock layers, the youngest rocks are usually on the top and the oldest layer of rocks would be at the bottom.
- Relative dating is used to determine whether an object is older or younger.
Fossils
- Fossils are the preserved remains or traces of plants, animals, and other organisms from the past.
- Index fossils serve as a guide or indicator of certain geologic periods.
Geological Time Scale
- Eras are divided into smaller subdivisions called periods.
- The Phanerozoic Eon is the most recent eon which is about 500 million years old.
- A preserved remains or traces of plants, animals, and other organisms from the past are considered fossils.
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