WorksheetsGeological Time Scale
Total questions: 20
Worksheet time: 11mins
In which time period are we currently living?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Jellyfish are one of the oldest species on Earth. In what time period did they first appear?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
In what time period did Pangaea, the super continent, appear?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Which fossil is the youngest?
fossil A
fossil B
fossil C
fossils A and B are the same age
Which fossil is the youngest?
fossil A
fossil B
fossil C
fossils A and B are the same age
What is the importance of studying fossils?
to provide information about how current life forms would exist in previous environmental conditions
to provide information about how life and environmental conditions may have changed
to provide information about how previous life forms would exist in current environmental conditions
Determines the “relative” order of past events but not the absolute age.
Absolute age
Relative age
Real age
New age
Uses the decay of radioactive elements to find the ___________________________ of a rock or fossil.
Relative age
Absolute age
New age
Real Age
The same natural laws in Earth's history that are present today.
Uniformitarianism
Law of Superposition
Catastrophism
The Great Dying
Mass extinction 252 million years ago... end of the Permian Period.
Great Cambrian Explosion
The Great Dying
Uniformitarianism
Eon
When most of the major groups of animals first appear in the fossil record.
Law of Superposition
The Great Dying
Great Cambrian Explosion
Era
Division of periods in geological history
Eons
Epoch
Era
Law of Superposition
Chronological chart that shows the events and past lives of organisms in Earth's history.
Geological Time Scale
Cambrian Explosion
Eon
Era
These specialized fossils indicate to geologists the boundaries in geological time and determine the age of rocks.
Index fossils
Limestone fossils
Amber fossils
Cast fossils
This chronological time chart is broken into different time chunks, the largest being the Eon, then Era, Period, and Epoch.
Timeline
Calendar
Geological time scale
Time chart
Preserved remains of plant and animals from the remote past are called _______________.
Rocks
Dinosaurs
Strata
Fossils
In which of the following eras did humans first appear in the fossil record?
Precambrian
Paleozoic
Mesozoic
Cenozoic
