Geologic Times
Put the following in order from earliest to latest: Mesozoic, Cenozoic, Precambrian.
Mesozoic, Cenozoic, Precambrian.
What is a mold fossil.
An imprint left by an animal.
If a fish's bones are above a cow's bones then which is older?
The cow.
What is the most accurate way to date objects?
Carbon Dating
Which is bigger: eon or era?
eon
Define fossil
Biological remains.
If there is a fish at 5m below the surface, a cow at 15m, and a t-rex at 20m then which died first?
The t-rex
What element is used in Carbon dating?
Carbon 14
What era are we in?
cenozoic
What is a trace fossil?
Proof that a plant or animal was there.
What is the rule concerning relative age?
The further down something is the older it is.
What do scientists do when an object is too old for carbon 14?
Titanium
what period are we in?
Quaternary
What are all the types of fossils?
mold, cast, trace, and actual remains.
What is an index fossil?
A fossil used to find the relative age of a given fossil.
What is the most common index fossil?
Trilobites