100 200 400 300 400 Fossil Formation Clues to the Past Science
Court Study of Dinosaurs 300 200 400 200 100 500 100
Slide 4
A preserved clue to life on Earth long ago is called Fossil
Formation What is a fossil?
Slide 5
When scientists find a fossil, they make a about the animal
while it was alive. Clues to the Past What is a prediction (or an
inference?
Slide 6
True or False: Only animals can become fossils. Science Court
False
Slide 7
A scientist who studies the remains of living organisms from
long ago is called what? Study of Dinosaurs A paleontologist
Slide 8
Fossils are formed in these types of rocks. Fossil Formation
What are sedimentary rocks?
Slide 9
Give at least one reason why fossils are important. Clues to
the Past 1)They tell us what living things were like in the past.
2) They also tell us what Earth was like long ago.
Slide 10
What is petrification? Science Court Petrification is the name
for the Process that turns living things, Like bones, into
rock.
Slide 11
Scientists know about how old A fossil is by looking at where
it was in the of the Earth. Study of Dinosaurs What are the layers
of the Earth?
Slide 12
Tracks, burrows, and animal droppings are examples of this type
of fossil. Fossil Formation What are trace fossils?
Slide 13
How can whole plants and animals be preserved as fossils? Clues
to the Past If animals were trapped in tar pits, Glaciers, or tree
sap, they are preserved as whole fossils.
Slide 14
Name the 4 steps required to petrify an organism. Science Court
1.The animal dies 2.It gets buried quickly under sediment 3.The
tissue decays 4.The bones are slowly replaced by minerals.
Slide 15
Which layer is older in this picture, the yellow layer or the
blue layer? Study of Dinosaurs The yellow layer
Slide 16
An imprint made by the outside of a dead plant or animal is
called a. Fossil Formation What is a mold fossil?
Slide 17
Explain how scientists know that living things have changed
over time. Clues to the Past Scientists compare fossils found to
living animals today, so that shows how they have changed over
time.
Slide 18
The soft parts of animals include things like skin, tongues,
and organs. Why do we not usually find fossils of the soft parts of
animals? Science Court The soft parts decay before they can become
fossils.
Slide 19
Name at least one way Paleontologists predict the ages of
fossils they find. Study of Dinosaurs 1)Looking at where the fossil
was Found in the layers of rock.2) Look at how much of certain
particles have decayed over time. The more particles that have
decayed, the older the layer of rocks where the fossil was
found.
Slide 20
When sediments or minerals fill a mold fossil, this type of
fossil is formed. Fossil Formation What is a cast fossil?
Slide 21
When minerals have replaced Once living material, this is said
To have been. Clues to the Past What is petrified?
Slide 22
Name two things that work to Change the surface of the Earth.
(Answer in the form of a question.) Science Court Earthquakes,
volcanoes, shifting continents, and erosion (water and soil
erosion)
Slide 23
How can scientists look at fossils and make predictions about
how the organism lived? Study of Dinosaurs Scientists can examine
the fossils of organisms to see what made it possible for them to
survive in that habitat.
Slide 24
How many points do you wager?
Slide 25
What did the habitat of Kentucky Use to be like? How do we
know? (Think about the types of fossils We have looked at
throughout our unit.) Final Jeopardy Question Kentucky used to be
under water a long time ago. We know this because we have found a
lot of shells in the sedimentary Rocks Seen in class. Since animals
with shells live underwater, we know that Kentucky used to be
underwater as well.
