WorksheetsRadiometric Dating
Total questions: 15
Worksheet time: 10mins
Which of these choices is the best definition of absolute dating?
determining the age of a rock layer by studying the fossils present
finding the age of an object compared to other objects
measuring the age of an object in years using any method
determining the amount of a radioactive isotope in an object
. Which of these statements describes what happens during radioactive decay?
A Stable isotope interacts with an unstable isotope
A stable isotope breaks down and becomes unstable
An unstable isotope breaks down into a more stable isotope.
An unstable isotope interacts with another unstable isotope.
According to the graph, what is the half-life of this isotope?
Which is NOT a method to date the oldest earth rock, mars rock, moon rocks, or meteors?
Stratigraphic layering
Crater density
radiometric dating
tree rings
4.5 billion years
Earth's atmosphere burns up most asteroids and has weathering and erosion
Earth's moon blocks asteroids, making the moon have more craters
asteroids just missed Earth due to the magnetic field
most asteroids are deflected by the atmosphere due to the stratosphere pressures
When an unstable nuclei of an isotope loses energy by radiation it is called
Radioactive decay
Fermentation
Being extra
Nucleic acid
