Font size
WorksheetsCarbon Dating and Half Life of Carbon-14
Total questions: 14
Worksheet time: 11mins
The rate at which nuclear decay takes place is measured by
neurons
a radioisotope’s half-life.
decay rates
temperature
The half-life of a radioisotope is
the time it takes to double in size
the time it takes to die
the time it takes for half the nuclei to decay
the time it takes to have dance party
Who would use half-life of radioisotopes
historians
archaeologists
builders
engineers
Why do we use half life of the radioisotope carbon-14?
to determine the age of fossils and ancient materials
to record sea floor spreading
to breakdown the process of decay
to measure the radioactivity of objects
Carbon dating relies on
the fact that all living things contain a small amount of carbon-14
organisms dying
washing your hands
organism remaining constant
Explain what the graph means
(a)
Therefore, by measuring the amount of carbon-14 in fossils and bones, scientists can
(a)
What contains carbon-14
Cars
Humans
Trees and other plants
Paper
How many half lives does it take for less than 10% of carbon-14 to remain?
(a)
This graph demonstrates exponential decay. Describe this pattern in words.
(a)
What would the percentage be after 15 years?
(a)
What is the half life of Gold-200
(a)
What is the half-life of carbon-14?
(a)
What is the half-life of Cobalt-60
5.3 years
6.7 years
7.3 years
5 years
