Polar Lab
Finding fossils
Ancient animals
Arctic and Antarctic
what's that record?
100
When wood petrifies it becomes...
What is stone?
100
If you were on a different planet collecting rocks, what type of rocks would you most likely find fossil animals and plants?
What is sedimentary rock.
100
Why is it rare to find a plant fossil?
Answer: They have no hard parts such as a skeleton or bones.
100
Which of the following terms describes the black soot and bacteria that form in pockets on the ice and cause it to melt more quickly than it would if it were pure white?
A. calving B. Glacial melt C. Cryoconite D. Volcanic ash
Answer: What is answer C (cryoconite)
100
What is the time period between bands of ice in an ice core?
Answer: 1 year intervals
200
Would the present day climate be considered an ice house or a hot house?
Answer: Ice house
200
The preserved remains or traces of a living thing.
What is a fossil?
200
The type of scientist who studies the fossil record to learn more aobut life on Earth.
Who is a paleontologist.
200
This image from the film chasing ice is evidence of what global phenomenon?
Answer: Global climate change
200
Which piece of wood in this photo was likely grown in a cool and dry climate?
Answer The wood from 1918.
300
What is one type of evidence that scientists have found that suggests that the arctic was once a swampy environment?
Answers: Fossil tree stumps (Dawn redwood), fossil leaves from redwood, fossil corypodon, fossil soft shelled turtles, tortoise, tapir
300
Where is the shark tooth capital of the world?
Venice, Florida
300
How are fossil shark teeth different from regular shark teeth?
Answer: Fossil shark teeth are rocks.
300
In the Polar lab what did scientists look at to determine the amount of trees or grasses in lake cores?
Answer: Pollen
300
Which was more common in the history of the Earth, Hot house climates or Ice House climates?
Answer: Hot house climates were three times more common.
400
When scientists find fossil palm leaves in the rocks of the arctic (where no palm trees live). What can it tell them about the environment of the arctic?
That the arctic climate has changed, and that it used to be warmer than it is now.
400
Paleontologists can infer the size of ancient sharks by measuring what feature?
What is the crown height of the shark tooth.
400
According to the diagram, which fossil animal is the oldest?The dinosaur, fish, or bird?
Answer: fish
400
As part of the Polar lab what type of dinosaur fossil did scientists find in Patagonia that indicates the area was once dominated by leafy forests?
Answer: Titanosaur
400
How many years old is this fossil shark?
Answer: 12 years old
500
What is the term for when ice extends onto the continents?
Answer: Glacial period
500
How big is the largest recorded Megalodon tooth?
17.8 cm long (must be within +/- 1 cm to get the points -16.8-18.8)
500
Scientists use the following equation to estimate the size of ancient Megalodon sharks from their fossilized teeth. What would be the size of a Megalodon shark if the crown height of the tooth was 10 cm?
TL = (11.788)(CH) + 2.143 where TL is the total length of the shark in cm, and CH is the Crown Height of the tooth in mm
Answer: The Megalodon was 1180.943 cm (38.7 feet)
500
From the film chasing ice, how much has the Carroll glacier retreated both horizontally and vertically?
11 miles horizontally and the height of the empire state building vertically.
500
The type of fossil that helps scientists date certain rock layers is called....?
What is an index fossil?