Fossils VocabularyFossils & EarthLife in the PastMiscellaneous
Any naturally preserved evidence of life fossil
Fossil of an organism that lived during a relatively short time span index fossil
The hardened sediment around a dead organism’s body mold
The sediment that fills the space left by a dead organism’s body cast
_________ stored in the cells of organisms that lived millions of years ago energy
Where might you expect to find a fossil of a woolly mammoth? In a glacier
________ tell us more about Earth’s history than the age of certain rock layers. fossils
What fossil fuel was formed when swamp plants died millions of years ago and were buried? Coal
Which layer of sedimentary rock is the oldest? Bottom layer
About how old is the Earth? 4.6 billion years old
A period in which a large number of species become extinct Mass extinction
Although some species become extinct, others have survived by _______ to changes in their environments. adapting
A fossil of a sea animal was found near the top of a mountain. What does this tell you about the history of the mountain? The mountain was under water at one time.
When did dinosaurs dominate the land? Age of Reptiles
Which organism was an early type of bird that had some characteristics of dinosaurs? Archaeopteryx
All living things have _______ stored in their cells. energy
Name something that can become a fossil. An impression of a leaf, an animals burrow, etc.
What types of organisms are most likely to become fossilized? Organisms with hard tissue that live in water
What are 3 types of fossil fuels and where is each type of fossil fuel found? Coal – swamps Natural gas & petroleum - oceans
The energy stored in the cells of organisms that lived millions of years ago is used today to do what? 2 things Run machines and make electricity
Tie Breaker
The process by which continents move slowly from one position to another is known as… Continental drift