Show:
Trace and Index fossils
Mold and Cast
Paleontology and Carbon film
Modern and ancient plants and animals
absolute age, Pangea, petrified, and relative age
100
A fossil that lets scientists find out how old a rock layer is.
What is an Index fossil?
100
A hollow space left while preserving fossils.
What is a mold?
100
the study of fossils
What is paleontology?
100
horses have ----- in size
What is grown?
100
the exact age of a rock layer
What is absolute age?
200
A fossil left behind to show a fossil's actions before it died.
What is a trace fossil?
200
The result after minerals fill the mold
What is a cast?
200
people who study how organisms have changed.
who is a paleontologist?
200
reason elephants have no thick hair
What is adapting to different habitats/climates?
200
A big land mass before the continents drifted apart
What was Pangea?
300
Index fossils live in ---- places
Where are many places?
300
dissolved minerals fill a mold and harden
How is a cast shaped?
300
a thin coating of carbon
What is carbon film?
300
Living thing that most carbon film is made of
What are plants?
300
preserved after fossil dies. Includes plants
What is petrified?
400
Scientists use it to guess sizes.
What is a trace fossil?
400
Mold and cast are both buried in this
What is sediment?
400
heat and pressure force out most of the remains of a buried organism
What is the formation of carbon film?
400
Place where modern plants grow
where are the sea and land?
400
the age of a rock layer compared to other nearby rock layers
What is relative age?