A2.1.8—Dating first cells and LUCA Topic Practice
A2.1.8—Dating first cells and LUCA Topic Practice
Practise applying radioisotope dating ideas to fossils and rocks, including carbon-14 and potassium-40 evidence for age estimates.
How this is tested
- explain how changing 14C to 12C ratios can estimate the age of fossils
- apply 40K decay to 40Ar and half-life evidence when dating rocks
- state suitable radioisotopes for fossil dating and link them to age estimation