Radiometric Dating

Master radiometric dating! Learn isotopes, half-life, and calculate ages. Perfect for high school science.

What is Radiometric or Absolute Dating? Watch the video and use the info learned to answer the following questions. Vocabulary Match the vocabulary word with the correct definition. Parent Isotope The starting isotope that decays into the final product Daughter Isotope The isotope that results from radioactive decay Half-Life The time it takes half of the parent isotope to decay into the daughter isotope Absolute Dating Another term for radiometric dating Parent and Daughter Isotope Match the Parent Isotope with the corresponding Daughter Isotope. Carbon 14 Nitrogen 14 Uranium 238 Lead 206 Uranium 235 Lead 207 How long is the half life of the following elements? Match the element to its half life Carbon-14 5730 years Potassium-40 1,300,000,000 years Uranium-238 4,500,000,000 years Rubidium-87 49,000,000,000 years What percentage of the parent and daughter elements will remain? Write the parent to daughter percentages as a ratio. Ex- 50% parent:50% daughter 100% parent: 0% daughter 25% Parent:75% daughter 50% parent:50%daughter 12.5% parent:87.5% daughter 6.25% parent: 93.75% daughter 3.125% parent:96.875% daughter Half-Life Table Complete the Half-Life Table below with the correct percentage. (Do NOT use the % symbol. Just type the correct number.) Number of Half-Lives Percent of the Parent Isotope 0 100 1 50 2 25 3 12.5 4 6.25 Radiometric Dating Write the answer in the space provided. (Do not use commas!) 5730 Radiometric Dating Write the answer in the space provided. (Do not use commas!) 11460 Radiometric Dating Write the answer in the space provided. (Do not use commas!) 352000000 Relative or Radiometric Dating Sort the words as either relative or radiometric dating. Relative Dating Principle of Superposition Unconformity Radiometric Dating Half-Life Exact Date Carbon Dating