Uploaded by Cliff Hymel

AbsoluteDatingMakeupAssignment

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Absolute Dating Makeup Assignment
Directions: Answer the following questions. Submit into Blackboard for credit.
1. when the actual date of an event is determined
absolute dating
relative dating
2. A historical method that shows width depends on the temperature and rainfall that year
tree rings
varve
3. A historical method that shows sediment deposited on a yearly cycle, such as a glacial lake.
varve
tree rings
4. A positively charged particle of matter is a
proton
neutron
electron
5. A particle that has no charge.
proton
neutron
electron
6. The place in the atom where alpha and beta decay is happening is the
electron cloud
nucleus
7. If isotopes continue to be radioactive after radioactive decay, does radioactive decay continue
until a stable isotope of that original parent isotope forms?
Of course!!
I don’t think so.
8. Again, where in the atom is radioactive decay occurring?
proton
nucleus
neutron
9. What is true about radiometric dating?
when scientists use radioactivity and half lives of elements to measure absolute time
measure how many parent/daughter isotopes within rocks/minerals, using the ratio for the
age
both of these
none of these
10. The best way to find out how old a sample of petrified wood (225 million years old) from the
Petrified Forest National Park in Northeast Arizona is by
radiocarbon dating
potassium-argon dating
11. In general, the best way to find an absolute age of a rock sample from the White Tanks
(white schist metamorphic rock that is 35 million years old) would be
potassium-argon dating
uranium-lead dating
12. The best way to find the age of Picacho Peak (igneous rock that is 22 million years old) is
uranium-lead dating
potassium-argon dating
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