WorksheetsAbsolute Dating VHS
Total questions: 9
Worksheet time: 5mins
Which statement describes what happens to elements during radioactive decay?
They release energy.
They gain new particles.
They lose energy at a varying rate.
They have a consistent number of particles.
Which material undergoes radioactive decay?
all elements that have a half-life
all elements that contain atoms with protons
all elements that have turned into a new
all elements that have a consistent number of particles
Which phrase describes one characteristic of radioactive elements?
are produced in a laboratory
decay at a constant rate
have a consistent number of particles
release energy and particles to maintain radioactivity
The chart shows rate of decay. Which value is being measured in the columns labeled "Fraction remaining” and "Percentage remaining”?
years of decay
quantity of energy
number of stable atoms
amount of material that has not decayed
Study the diagram of radioactive decay. Which option identifies what the arrows in the diagram represent?
atoms and elements
elements and gas
energy and particles
gas and atoms
Which statement accurately describes radioactive dating?
Geologists use only one type of radioactive dating.
Geologists compare parent and daughter elements to determine rock type.
Geologists measure how stable parent elements decay into daughter elements.
Geologists determine half-life as radioactive elements get trapped in rock and break down over time.
Which unstable element is used to determine the age of volcanic rock?
argon
carbon-12
potassium
carbon-14
Which stable element is used to determine the age of volcanic rock?
argon
carbon-14
potassium
carbon-12
The graph shows calculations for potassium-argon dating.
They can estimate that all the potassium will have decayed within 6.5 billion years.
They can tell that 1/8 of the argon gas will be left after 3.9 billion years.
They can determine that a rock is 1.3 billion years old if 1/2 of the potassium has decayed.
They can see that potassium’s half-life varies from every 1.3 billion years to every 5.2 billion years.
