vocab
impression v. remains
fossilization
evidence
random
100
A living thing, such as a plant or animal, is called a _____.
organism
100
which type of fossil must bake in the sun to become fossilized?
an impression fossil
100
What is the final step of fossilization?
erosion and exposure
100
Fossils serve as evidence of _____________.
past life
100
A fossilized organism with fins tells us the organism most likely moved by ____.
swimming in water
200
An impression fossil is:
a) a dent in the remains of an animal
b) minerals entering the bones
c) an imprint from an organism
d) a fossilized tooth
c- an imprint from an organism
200
Which type of fossil involves death and decay?
a remains fossil
200
What is the first step of EACH type of fossilization?
remains: death and decay
impression: organism leaves an imprint
200
Fossils give clues about ________ of prehistoric organisms.
a) diet, behavior, and movement
b) fur color, diet, and environment
c) speed, weight, and diet
d) environment, movement, and sleep habits
a) diet, behavior, and movement
200
Finding fossilized teeth can give us clues about the organism's ______. Give an example.
diet- sharp teeth = meat eater
flat teeth = plant eater
300
Fossils are remains or impressions left from organisms that have been preserved over time. What does preserved mean?
maintained in its original state
300
A footprint is an example of what type of fossil?
impression fossil
300
C
300
About 50 years ago, a whale fossil was found in Georgia. At first, it was thought to be an alligator fossil because it was found near a river but far from an ocean. What does the discovery of the whale bones tell you about Georgia?
the area they were found was once covered by ocean
300
A fossil found under more layers is ______ than a fossil found under less layers.
older
400
What is it called when minerals enter the empty spaces in the buried bones of an organism?
permineralization
400
Which type of fossil includes permineralization in its fossilization process?
remains fossil
400
Each type of fossilization requires a rapid burial by sediment. What does this mean?
quickly covered by sediment
400
What would accurately complete step 2?
a) the organism leaves an impression in the soft soil
b) the sun bakes the imprint
c) pressure + time
d) permineralization
b) the sun bakes the imprint
400
Name 1 characteristic of this organism.
4 legs, armor/bony plates, long tail...
500
Fossils are proof of past life. What is another word for proof?
evidence
500
Explain the difference between a remains fossil and an impression fossil?
a remains fossil includes the hard parts/remains (like bones or shell) of an organism, and an impression fossil does not include the remains of an organism. An impression fossil is just an imprint from an organism.
500
Which step takes the longest? How do you know?
pressure + time- it takes thousands or millions of years for fossils to form
500
Name two differences between impression fossilization and remains fossilization.
impression: involves making an imprint and involves baking in the sun
remains: involves death and decay of organism, and it involves permineralization
500
What change should you make to this sequence?
erosion is the final step