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Fossils that help determine the relative age of rocks around it are called
index fossil
To learn how Earth’s Atmosphere has changed over time, scientists study air bubbles in what?
ice cores
Which rock layer is the oldest?
B
Organization of the major events on Earth with the appearance, evolution, and extinction of Earth’s organisms is called the
Geologic Time Scale
What type of rock are you most likely to find fossils in?
Sedimentary Rock
What drives the process of plate tectonics?
Heat of the Earth, convection currents
What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?
environmental changes
This law that states that older rocks are at the bottom and younger rocks are on top is called...
law of superposition
Radioactive dating is used to find the ______________ age of a rock or fossil?
absolute (exact)
The law of superposition finds the __________ age of rocks
relative
Which era is known as the age of reptiles (dinosaurs)?
mesozoic
How old is the Earth?
4.6 Billion years
What era do we live in?
Cenozoic Era
What is A called?
an intrusion
Which fossil is the youngest?
mammoth tusks
Which substance would best preserve the soft parts of an organism (not the bones, teeth, and shell)?
amber
type of rock formed through the cooling and solidification of magma or lava.
igneous
Which method provides the most accurate age of a rock sample?
radioactive dating
Which era is known as the "age of mammals"
Cenozoic
What do you call the supercontinent landmass formed million years ago?
Pangea
True or False Tectonic plates are constantly moving at different rates and in different directions.
True
How do scientists know that some mountains were once at the bottom of an ocean?
 
Marine fossils have been found on the peaks of some mountain
 
Freshwater rivers flow to the ocean.
 
Saltwater fish are found in some mountain streams.
 
Dinosaur bones have been discovered in the mountains.
Which is the most accurate method scientists use to predict the age of Earth?
 
radioactive dating of rocks
 
relative dating of rock layers
 
comparing the ages of different fossils
 
investigating core samples from the Arctic.
Recent changes in species can be found in the upper layers of rock. This provides a link between which two scientific ideas?
 
the theory of evolution and the Law of Superposition
 
the Law of Superposition and the periodic nature of the elem
 
the periodic nature of the elements and cell theory
 
cell theory and the theory of evolution
A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?
 
the index fossils in the area of the bones
 
the birds living in the area of the bones
 
the weather conditions in the area of the bones
 
the kinds of trees living in the area of the bones
Scientists find dinosaur fossils in the bottom rock layers of a cliff and mammal fossils in the middle rock layer of the cliff. Which could best be concluded from this evidence?
 
Dinosaurs lived on Earth before the mammals
 
Dinosaurs ate plants.
 
Dinosaurs were eaten by the mammals.
 
Dinosaurs and mammals lived at the same time.
What do earthquakes tell scientists about the history of the planet?
 
The continents of Earth are continually moving
 
Earth’s climate is constantly changing
 
Dinosaurs became extinct about 65 million years ago.
 
The oceans are much deeper today than millions years ago.
What is the processes that shape the Earth continue as they have since the Earth formed. (Hint, it's a really long word)
Uniformitarianism
Which best describes how ice cores are important to the study of geologic history?
 
They contain evidence showing changes in the atmosphere
 
They show unconformities, which signal changes in deposition
 
They hold index fossils, which date the different ice cores
Which allows scientists to investigate what Earth’s climate was like over the past 740,000 years?
 
fossils
 
faults
 
ice cores
 
volcanic deposits


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