1. Eon: Half a billion years or more. Era: Several 100 million years.
Geologic Time Vocabulary
Set-up Directions:
Tape this directions page and the vocabulary list in your Lab Journal.
3 Hole Punch your vocabulary
Learning Vocabulary Directions:
Column 1 – Write in the definitions.
Column 2 – Create a colored illustration for the word or phrase or find one on the internet, print and colorize it.
Column 3 – Use the word or term in a sentence. You may choose to:
Create your own sentence.
Find the word used in a sentence in your textbook and note the page #.
Google the word or phrase, copy the word used in a sentence, and include the site title or address.
Quality Check: Use CUPS to ensure you have created grammatically correct sentences.
geologic time scale = is a system of chronological measurement that relates stratigraphy to time, and is used to describe the timing and relationships between events that have occurred throughout Earth’s history.
Radiometric testing = a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.
stratigraphy = The study of rock layers (strata), especially the distribution, deposition, and age of sedimentary rocks.
era = a long and distinct period of history with a particular feature or characteristic; several hundred million years
period = subdivision of an era
epoch = subdivision of a period
trilobite = extinct marine arthropod that occurred abundantly during the Paleozoic era, with a carapace over the forepart, and a segmented hind part divided longitudinally into three lobes.
fossil = the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
exoskeleton = external skeleton
endoskeleton = internal skeleton
plate tectonics = a theory explaining the structure of the earth's crust and many associated phenomena resulting from lithospheric plates that move over the underlying mantle.
cyanobacteria = blue-green algae a group of photosynthetic bacteria which release oxygen into the atmosphere
amphibians = a cold-blooded vertebrate animal that has an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage. Egg layers in water.
reptiles = a cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land.
extinction = the state or process of a species becoming extinct, no longer existing on the Earth.
Pangea = a continent which included all the landmass of the earth prior to the Triassic period
gymnosperm = a plant, such as a pinetree, whose seeds are not enclosed within an ovary, fruit.
angiosperms = a plant having its seeds enclosed in an ovary; a flowering plant.
mammal = a warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, the secretion of milk by females for the nourishment of the young, and the birth of live young.
marsupial = a mammal of an order whose members are born incompletely developed and are typically carried and suckled in a pouch on the mother's belly.
Eon: Half a billion years or more.
Era: Several 100 million years.
Epoch: 10’s of millions of years.
Age: millions of years.

2. Project # ___: Genetics Vocabulary. Name __________________________
Project # ___: Genetics Vocabulary Name __________________________ Core Score ____/ 100
Word = Definition
Illustration
Word used in a sentence.

3. Word = Definition
Illustration
Word used in a sentence.

4. Word = Definition
Illustration
Word used in a sentence.

5. Word = Definition
Illustration
Word used in a sentence.

6. 504 & IEP Accommodations
If you have a writing or abbreviated work accommodation, you may want to use the following pages with the definition filled in.
Highlight the definitions column as actively read the definitions to increase your learning retention.

7. Project # ___: Genetics Vocabulary. Name __________________________
Project # ___: Genetics Vocabulary Name __________________________ Core Score ____/ 100
Word = Definition
Illustration
Word used in a sentence.
1. geologic time scale = is a system of chronological measurement that relates stratigraphy to time, and is used to describe the timing and relationships between events that have occurred throughout Earth’s history.
2. Radiometric testing = a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.
3. stratigraphy = The study of rock layers (strata), especially the distribution, deposition, and age of sedimentary rocks.
4. era = a long and distinct period of history with a particular feature or characteristic; several hundred million years
5. period = subdivision of an era

8. Word = Definition
Illustration
Word used in a sentence.
6. epoch = subdivision of a period
7. trilobite = extinct marine arthropod that occurred abundantly during the Paleozoic era, with a carapace over the forepart, and a segmented hind part divided longitudinally into three lobes.
8. fossil = the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
9. exoskeleton = external skeleton
10. endoskeleton = internal skeleton

9. Word = Definition
Illustration
Word used in a sentence.
11. plate tectonics = a theory explaining the structure of the earth's crust and many associated phenomena resulting from lithospheric plates that move over the underlying mantle.
12. cyanobacteria = blue-green algae a group of photosynthetic bacteria which release oxygen into the atmosphere
13. amphibians = a cold-blooded vertebrate animal that has an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage. Egg layers in water.
14. reptiles = a cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land.
15. extinction = the state or process of a species becoming extinct, no longer existing on the Earth.

10. Word = Definition
Illustration
Word used in a sentence.
16. Pangea = a continent which included all the landmass of the earth prior to the Triassic period
17. gymnosperm = a plant, such as a pinetree, whose seeds are not enclosed within an ovary, fruit.
18. angiosperms = a plant having its seeds enclosed in an ovary; a flowering plant.
19. mammal = a warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, the secretion of milk by females for the nourishment of the young, and the birth of live young.
20. marsupial = a mammal of an order whose members are born incompletely developed and are typically carried and suckled in a pouch on the mother's belly.