Vocab
An animal with a backbone.
What is Vertebrate?
The top layer.
What is the youngest layer?
Used to organize periods of geology.
What is geological time scale?
Which event occurred in the Cenozoic era?
What is the spread of animals?
When was figure skating invented?
18th century.
The preserved remains or traces of an organism that lived in the past.
What are Fossils?
Two things you use to find how old a rock is.
What is relative and absolute age?
Beginning of geologic time.
What is Precambrian time?
What were Earth's earliest multicellular organisms?
What are vertebrates?
When was volleyball invented?
1895.
one of three long units of geological time between the Precambrian and the present
What are eras?
Destroyed many of Earth's rocks over the years.
What is erosion?
A person who studies fossils
What is a Paleontologist?
What era did the first birds evolve in?
What is the Mesozoic era?
Oldest winter sport in the Olympics.
Figure skating.
The process in which nuclei of radioactive elements break down, releasing fast-moving particles and energy.
What is Radioactive Decay?
Formed in horizontal lines or strata.
What are sedimentary rocks?
Eras that are subdivided into geological units of time.
What are periods?
The age of the reptiles.
What is the Paleozoic era?
What move is banned in figure skating?
Backflipping.
The geological principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
What is Law of Superposition?
The difference between relative and absolute age.
What is relative is comparing rocks to others, and absolute is the number of years passed since the rock formed?
Precambrian era covers what percent of Earth's history.
What is 88%?
How many eras were there?
What is 3?
What is after, bump and set in volleyball?
Spike.