Fossils
Rocks
Scientists
Extra
100
Where do you find the youngest fossils?
At the top.
100
About how long does it take to make a fossil?
It takes about 20 million years(depending on when you find the fossil)
100
How do scientist get fossils?
They chip the rock away or dig it up.
100
How can you tell how old the fossil is?
You either use relative or absolute dating.
200
In what kind of rocks do you find fossils?
In Sedimentary.
200
What is the term for a fossil that shows that an organism lived?
It's called a trace fossil.
200
Were do scientist take fossils to?
Museums or labs.
200
How is a cast created for a fossil?
Plaster is poured around the fossil, to make the cast of the outside of the fossil
300
When a bone becomes a fossil, what is inside the bone?
Minerals.
300
What is the only way that rock can form around the fossil quickly?
If hot lava flows down, and covers it.
300
What does it mean when they reconstruct a skeleton?
They rebuild it.
300
What layer of the Earth are fossils always found in?
The fossils are always found in the crust.
400
This is what is left of a plant or animal that lived long ago.
A fossil.
400
What object would most likely be a fossil- A tooth, a piece of wood, or a leaf?
A tooth.
400
Name three different dinosaurs.
T-Rex, Diplodocus, Triceratops, Stegosaurus.
400
How is a mold made?
Plaster is filled inside the cast, took out of the cast to show a replica.
500
Name the three steps of how a fossil is made?
It dies, mud or sand cover it, mud or sand turn to rock.
500
What are the most common items found as a fossil?
Bones, teeth, and teeth.
500
Name three steps for putting fossils together.
They are removed, they are cleaned, then put together.
500
How is a fossil made?
The original organism is replaced with minerals over time, and makes a fossil.
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