A new fossil is found in rock layers near Tallahassee. How can fossils nearby be used to find the approximate age of it?

geologists use fossils around it to find its relative age

Which is the best example of Earth changing over its geologic history?

fossils of dinosaurs and tropical plants in antartica

Plate tectonic theory is based on the age of rock increasing farther from the mid-ocean ridge. Scientists work to:

provide evidence to make accurate predictions and allow for wide acceptance

Rocks in FL from 20 mil. years ago have marine fossils, those from 1 mil. years ago have land fossils. Which is true?

The area was part of a seafloor 20 million years ago

Which statement correctly describes the use of superposition or radioactive dating?

Using radioactive dating to determine the exact age of different rocks.

Which is the best evidence to support the idea that volcanoes created the Earth's early atmosphere?

Volcanic gases match the gases in air NOT caused by photosynthesis

Which describes a similarity between a law and a theory?

both are supported by a lot of evidence and are widely accepted

Max thinks that friction between the tires and road slows him down when not peddling.Why is his idea NOT a theory?

Max's idea is not well supported and widely accepted explanation

Which of the following pieces of evidence proves that continents were once covered by oceans?

seashells and marine fossils are found on mountains

What should you have out when you sit down in science class?

science folder, writing tools, paper, agenda

Scientific theories are changed as new information is discovered. Why is it important that old theories get revised?

this allows for an increasing accurate understanding of the world

How does the Theory of Plate Tectonics explain the location of the same fossils in Africa and S. America?

The continents were once joined together

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GEARS CFA 6 Earth's Geological Past

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Questions 16

Answers

1
This dessert represents rock layers. Which layer would be the oldest?
dark brown layer
lighter brown layer
thin top layer
white layer
2
A new fossil is found in rock layers near Tallahassee. How can fossils nearby be used to find the approximate age of it?
scientists asks other scientists to date fossils based on known information
geologists use fossils around it to find its relative age
geologists use radiomeric dating to find its exact age
scientists compare the fossil to similar fossils from around the world
3
Which is the best example of Earth changing over its geologic history?
an igneous rock because it is cooled magma
fossils of dinosaurs and tropical plants in antartica
a Venn diagram comparing and contrasting alligators and crocadiles
a model of hurricanes causing beach erosion
4
If new evidence is discovered that challenges the theory of plate tectonics, what would happen to this theory?
it is modified
it becomes a law
it is eliminated all together
it is replaced
5
Plate tectonic theory is based on the age of rock increasing farther from the mid-ocean ridge. Scientists work to:
clarify scientific explanations and make them into laws that do not change
provide evidence to make accurate predictions and allow for wide acceptance
develop explanations that are permanent and do not change
make theories from data from a few experiments with inconclusive data
6
Rocks in FL from 20 mil. years ago have marine fossils, those from 1 mil. years ago have land fossils. Which is true?
Land animal numbers in the area increased as they preyed on marine animals
The area was part of a seafloor 20 million years ago
Earthquakes have disturbed the layers of fossils in the area.
Twenty million years ago, land animals lived on islands in the area
7
Which color layer is youngest?
orange
blue
violet
gray
8
Which statement correctly describes the use of superposition or radioactive dating?
Using superposition to determine the exact age of old river rock.
Using radioactive dating to determine the exact age of different rocks.
Using radioactive dating to find the relative age of rock layers.
Using superposition to compare the age of a rock to plant life in the area.
9
Which is the best evidence to support the idea that volcanoes created the Earth's early atmosphere?
Volcanic gases match the gases in air NOT caused by photosynthesis
Volcanic eruptions shape Earth’s surface, creating new landforms.
Volcanoes are near the equator, so their gas spreads over Earth’s surface.
Volcanoes expel a mixture of gases of only water vapor and oxygen
10
Which describes a similarity between a law and a theory?
both are explanations of a supported hypothesis
both are supported by a lot of evidence and are widely accepted
both explain a phenomenon
both are universally observable facts
11
Max thinks that friction between the tires and road slows him down when not peddling.Why is his idea NOT a theory?
Max's claim HAS been well tested
Max's idea is held by an individual and based on life experience
Max is not a professional scientist
Max's idea is not well supported and widely accepted explanation
12
Which of the following pieces of evidence proves that continents were once covered by oceans?
tectonic plates move apart
there are mountains under the oceans
the rocks show signs of weathering and erosion on mountains
seashells and marine fossils are found on mountains
13
Earth is about 4.6 billion years old. Why have we not found any rocks of that age on Earth's surface?
only the core is that age
the original rocks have been destroyed by solar radiation
they have all been eroded
they are hiding
14
What should you have out when you sit down in science class?
science folder, writing tools, paper, agenda
just be glad I showed up
crayons and snacks
nothing
15
Scientific theories are changed as new information is discovered. Why is it important that old theories get revised?
the old theories used old technology
this allows for an increasing accurate understanding of the world
the new information is needed to make new medicine
new scientists can find work
16
How does the Theory of Plate Tectonics explain the location of the same fossils in Africa and S. America?
Humans transported the animals from point A to point B
The continents were once joined together
The animals developed independently on both continents.
The animals were able to swim from one continent to the other

GEARS CFA 6 Earth's Geological Past Flashcards | StudBud