Earth's History Review (Targets 1-5)
Quiz by Laura Broadnax
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18 questions
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- Q1What type of fossil has parts of an organism found in tar, amber or ice?mold fossilpreserved remainscast fossiltrace fossil45s
- Q2What type of fossil is shown in the picture?carbon filmmold fossilpetrified fossilcast fossil45s
- Q3What kind of fossil is shown here? (This fossil contains little to no depth. It is only a thin layer showing the details of this dragonfly)mold fossiltrace fossilcarbon film fossilcast fossil45s
- Q4What kind of fossil is this?trace fossilscast fossilsmold fossils45s
- Q5Although this is not a real fossil :), what type of fossil does it represent?carbon filmtrace fossilmold fossilcast fossil45s
- Q6Which layer in this diagram is the oldest?DBCE60s
- Q7Which occurred first, layer D or fault E?layer Dfault E60s
- Q8Which is older, fault 2 or rock layer 3?rock layer 3fault 260s
- Q9Which is younger, the layer of limestone or rock layer 3?rock layer 3the layer of limestone60s
- Q10What is true about the half life of a radioactive element?It is the amount of time it takes half of the sample to decay into another element.It is never the same for a particular element.It is half the time it take for the element to be destroyed.30s
- Q11After two half lives have passed, what percentage of the original sample of a radioactive element is left?12.5%2%25%50%30s
- Q12If you had 200 g of a radioactive element, how many grams would be undecayed after 3 half lives?12.5g100 g25 g30s
- Q13If 10 percent of a sample of a radioactive element were decayed after 3 days, how long is the half-life of this element?3 days9 days25 days15 days30s
- Q14Carbon-14 is radioactive and it decays into Nitrogen-14 which is stable. If you started with a sample of 3,000 g of Carbon-14 and 20% of the sample decayed, how much Nitrogen-14 can you expect in your sample?3000 g600 g20 g1200 g30s
- Q15The relative age of an object is...the age of an object described by comparing it to the age of other objectsthe exact age of an object (usually given in years)30s
