CHARMINGTONLAPOINTES.INFO

Bitch I'd fossil dating decay radioactive sexy ass

how do scientists use radioactive dating to approximate a rock's age

47,704 results

  1. biology

    how do scientists use radioactive dating to approximate a rock's age
  2. Science

    What process involves the comparison of rock layers with others in a sequence to determine its age? radioactive decay radiometric dating relative dating absolute dating To determine the most accurate and precise age of Earth's oldest rocks, geologists would use relative dating...
  3. Science- Radioactive Dating

    Which of the following statements about radioactive dating is true? a. Radioactive decay is the rate at which new atoms form. b. During radioactive decay, atoms break down, releasing particles or energy. c. The rate of decay of a radioactive element cannot be approximated. d. ...
  4. science

    How can radioactive dating help determine the absolute age of a rock (or rock layer)?
  5. Math/Radioactive Dating

    My teacher said that if the ratio of mass (in a rock) for 40K and 40Ar was 1:3 then the age of the rock would be 2.5 billion years. I don't understand how he concluded that to be the age. The only thing he knew was that the half-life of K40 = 1.25 billion year. This is my ...
  6. Geology

    Does this sound right? Describe your assigned method and how it is used to evaluate geologic time. My assigned method was Absolute Dating / Numerical Age. Absolute Dating / Numerical Age is the process that assigns a numerical age ( this tells how old a rock or fossil is);to a...
  7. Science

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. The relative age of a rock is A, its age ...
  8. Science

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives, what percentage of a ...
  9. Science

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives, what percentage of a ...
  10. Science

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives, what percentage of a ...
  11. Earth science

    A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient relative of a living organism. Which is more useful for dating the rock, and why? Answer: an ancient relative of a living organism would be more useful for dating the rock ...
  12. science

    Which example describes a method of relative dating? A. using fossils to determine the oldest rock layer in a canyon B. using radioactive isotopes to calculate the age of a rock C. measuring the depth of tree bark D. examining historical records to determine when a volcano ...
  13. sicence

    Which example describes a method of relative dating? A. examining historical records to determine when a volcano erupted B. using radioactive isotopes to calculate the age of a rock C. measuring the depth of tree bark D. using fossils to determine the oldest rock layer in a ...
  14. Science- Earth and its History

    What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six half-lives, what percentage of a ...
  15. 6th grade science

    Which is a method of relative dating? A. examining historical records to determine when a volcano erupted B. using fossils to determine the oldest rock layer in a canyon C. measuring the depth of tree bark D. using radioactive isotopes to calculate the age of a rock I think ...
  16. Science help,Anyone?

    1. Why is it rare for the soft parts of an organism to become a fossil? The soft parts take a long time to decay. The soft parts can be eaten by other animals. The soft parts cannot be buried in sediment. The soft parts form petrified fossils. 2. Which of the following terms ...
  17. Check my Science questions?

    1. Why is it rare for the soft parts of an organism to become a fossil? The soft parts take a long time to decay. The soft parts can be eaten by other animals. The soft parts cannot be buried in sediment. The soft parts form petrified fossils. 2. Which of the following terms ...
  18. science

    ok i have a couple questions. 1. How has life changed throughout Earth's history? 2.What are three things that fossils tell us about earth's past? 3.What is radioactive dating? how do scientists use parent and daughter elements to determine the age of a fossil? 4.What is ...
  19. science

    What is the geologic time scale and what are some thing scientists use it for (at least two things)? Here's my answer could you please verify. the geologic time scale is a record of the geologic events and life forms in Earth’s history. Scientists use it to understand the ...
  20. science

    Can scientists use radiocarbon dating to find the age of a very tall, old redwood tree living in an old growth forest?
  21. Biology

    Explain how the half-life of a radioactive isotope affects the usefulness of that isotpe in dating specific types of rock?
  22. science

    Can scientists use radiocarbon dating to find the age of a very tall, old redwood tree living in an old growth forest? Explain your answer.
  23. TO ANY SCIENCE HELPER

    I honestly don't get how to use radioactive dating to determine the age of a sample. I need an example and what to do in order to get the answer. I need it to be step by step. Thank u so much :)
  24. science

    why is it rare for the soft parts of an organism to become a fossil? a) the soft parts take a long time to decay b) the soft parts can be eaten by animals***** c) the soft parts cannot be buried in sediment d) the soft parts form petrified fossils which of the following terms ...
  25. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other. What would a geologist ...
  26. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other. What would a geologist ...
  27. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other. What would a geologist ...
  28. science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other. What would a geologist ...
  29. Rocks

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other. What would a geologist ...
  30. Science

    Shale often contains fossils of leaves. Question: If the gastropods listed in line 3 and line 6 were collected from shale containing leaf fossils what would their possible age be? Question: Could you use radiocarbon dating to assign a numerical date/age to this rock unit? ...
  31. Chemistry

    What is the famous isotope used in archeological dating? carbon 12 I thought it was carbon 14 yes carbon 14-- made an error But if you knew, why are you asking these questions? I need reaasurance, so when I have a test I know the exact answer C-14 is ONE of the radioactive ...
  32. algebra

    Scientists can determine the age of ancient objects by a method called radio carbon dating. The bombardment of the upper atmosphere by cosmic rays converts nitrogen to a radioactive isotope 14C of carbon with a half-life of about 5710 years. Vegetation absorbs carbon dioxide ...
  33. Science

    Geologists use radioactive dating to... - determine the relative age of rock layers. - tell the difference between molds and casts. - tell where one soil horizon begins and the next one ends. - determine the absolute ages of rocks. I think it is to determine the absolute ages ...
  34. Science

    Which of the following would not be useful in determining the age of a fossil? a. Radiometric dating of the rock containing the fossil. b. Relative dating of the layers surrounding the fossil. c. Identification of fossils of known age found near the fossil in question. d. ...
  35. Science help,please...

    1. Why is it rare for the soft parts of an organism to become a fossil? The soft parts take a long time to decay. The soft parts can be eaten by other animals. The soft parts cannot be buried in sediment. The soft parts form petrified fossils. 2. Which of the following terms ...
  36. Science

    It can be inferred from the passage that radioactive dating is important for estimating the age of A) all known meters B) all existing planets C) the earth D) the trees
  37. Physics

    When any radioactive dating method is used, experimental error in the measurement of the sample's activity leads to error in the estimated age. In an application of the radiocarbon dating technique to certain fossils, an activity of 0.15 Bq per gram of carbon is measured to ...
  38. Radioactivity

    1. A granite rock is thought to be about 2 billion years old. why is it not possible to determine the age of the Rock using carbon-14 dating? 2. A hair sample has 80% of its original carbon-14 present. what is the age of the sample? 3. A bone fragment has lost 75% of its ...
  39. Urgent Science!!!

    1. Which of the following is NOT a fossil? (1 point) outline of a fern found in a rock petrified wood in the desert baby mammoth found in a glacier old stone tools found in a cave 2. _____ is based on the idea that younger rock layers are deposited on top of older rock layers ...
  40. earth

    Geological time scale summary for stone mountain's granite in georgia, with: description of the Feature Description of Processes Influence of Time on Rock Formation Discussion of Transformation processes Hand Samples Location Types of Rock from map A Map History Age of ...
  41. Earth science

    What two thing must scientists measure to find absoluite age of rock?
  42. College Geology

    assume that a particular radioactive-isotope has a half-life of 100 million years. Also assume that the parent isotope is incorporated into the minerals found in igneous rocks and that the only daughter atoms in the rock formed from the decay of the parent isotope. ...
  43. scientist

    What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
  44. science

    What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
  45. Radiometric Dating

    I have to answer the question 'The age of granite can be determined using radiometric dating. Explain the basis for the determination of a 238 U-Pb radiometric date of 1120 Ma for granite'. Can anyone suggest any sources to help me? Thanks! http://www.jiskha.com/search/search....
  46. WORLD HISTORY

    What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
  47. 10th grade

    What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
  48. Science

    Why do scientists use models? a: Scientists use models to learn about things that are too small, too large, or too complex to observe directly. < b:Scientists use models because doing so is always part of the scientific method. c:Scientists use models because they always ...
  49. Science-Earth's History

    The geologic time scale originally ordered Earth's rocks by: A. absolute age B. relative age C. composition D. decades and centuries B Where did scientists originally get their information to develop the geologic time scale? A. They collected and studied rock samples in Europe...
  50. Earth Science

    which two criteria must be met before scientists can use radiocarbon dating? I need serious help dudes lol
  51. Math/Radioactive Dating

    How would I calculate the age of a rock only given the amount of each in grams and half-life? 40K decays to 40Ar. Half life of 40K is 1.25 billion years. 40K = 20 grams 40Ar= 5 grams I think the formula is Final Amount of 40K = Initial Amount of 40K * (1/2)^(time/half-life) If...
  52. science

    Why do scientists use models? a. Scientists use models to learn about things that are too small, too large, or too complex to observe directly. b. Scientists use models because doing so is always part of the scientific method. c. Scientists use models because they always work ...
  53. Chemistry

    The age of a rock can be estimated by measuring the amount of 40Ar trapped inside. The calculation is based on the fact that 40K decays to 40Ar by a first-order process. It also assumes that none of the 40Ar produced by the reaction has escaped from the rock since it was ...
  54. 8th Grade Earth Science Help?

    Which of the following terms refers to the time it takes for one-half of the radioactive atoms in a sample of a radioactive element to decay? - relative age - absolute age - potassium-argon data - half-life** Is my answer correct?
  55. science

    Can the principles of relative dating be used to determine the date a rock layer was deposited? Explain your reasoning. I think no because realtive dating doesnt remember the exact date, it only remembers the time at around when it was formed. is that correct ..plz help
  56. earth, science

    Which of the following statements describes the development of the geologic time scale? A) Scientists developed the geologic time scale using fossilized remains from Europe and Asia. B) Scientists developed the geologic time scale by studying rock layers and index fossils ...
  57. Geology

    How were divisions of time separated when scientists created the geologic time scale? by the thickness of rock strata by the color of rock strata by the fossils found in rock strata by the location of rock strata
  58. science

    earth science physical geology; If rock A cuts across rock B, then rock A is rock B a. younger than b. the same age c. older than
  59. chemistry

    A moon rock collected by a U.S. Apollo mission is estimated to be 4.50 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb per 1.150 g of 238U in the rock? The half-life of 238U is t1/2...
  60. CHemistry

    Given that the half life of c 14 is 5,700 ,use the method c 14 dating to determine the age of a fossil if it has 25% of c 14 compared to living specimen.
  61. Chemistry

    A rock containing 238U and 206Pb was examined to determine its appropriate age. The molar ratio of 206Pb to 238U was 0.1462. Assuming no lead was originally present and that all lead formed remained in the rock. What is the age of the rock in years? The half life of 238U is 4....
  62. Science

    How do you use nitrogen to determine the radioactive age of a fossil?
  63. College Chemistry

    A rock containing 238U and 206Pb was examined to determine its appropriate age. The molar ratio of 206Pb to 238U was 0.1462. Assuming no lead was originally present and that all lead formed remained in the rock. What is the age of the rock in years? The half life of 238U is 4....
  64. earth science

    what radioactive isotope would be most useful in dating a mastodont bone ?why?
  65. Biology

    What is a molecular clock? A)a tool scientists use to date fossils B)a tool scientists use to determine how many mutations a species accumulates over time C)a tool scientists use to determine how long two species have been evolving independently D)a tool scientists use to ...
  66. Geology

    Hi there I'm having trouble with this study guide. Could someone please help me? You’ve returned from a recent geologic expedition and discovered that the security at the airport has dumped out all of your carefully sorted rock samples into a heap. You need to quickly sort ...
  67. science

    Hello! I need help with some Science things. 1. Where is a good place to find a picture that describes radioactive decay, fussion and fission/ 4. Scientists use the amount of radioactive isotopes found in rocks and fossils to calculate their ages. This process is called_____ 5...
  68. Science

    Which type of dating do index fossils provide the most help for? A. carbon-14 B. radioactive C. relative D. absolute
  69. chemistry

    The question I am having trouble with is: Scientists originally were uncertain whether the oxygen gas produced during photosynthesis came from CO2, H2O, or from both. How could radioisotope tracers be used to settle that question? Chemistry - DrBob222 6CO2 + 6H2O ==> ...
  70. Science

    How are modern items made to look like ancient artifacts? (This is about radioactive decay and dating.)
  71. Calculus

    Many scientists believe that there have been four Ice Ages in the past 1 million years. Before the technique of carbon dating was known, geologists erroneously believed that the retreat of the Fourth Ice Age began about 25,000 years ago. In 1950, logs from ancient spruce trees...
  72. Chemistry

    An archeological artifact was subjected to radiocarbon dating. The artifact showed a carbon-14 decay rate of 13.8 disintegrations/ min per gram of carbon. Carbon-14 has a half-life of 5715 years, and currently living organisms decay at the rate of 15.3 disintegrations/ min per...
  73. Science

    The relative age of a rock is ? 1. its age based on how much carbon-14 it contains 2. its age compared with the ages of other rocks 3. less than the age of the fossils it contains 4. the number of years since it formed my answer is D
  74. Science

    The relative age of a rock is... A. It's age based on how much carbon-14 it contains. B. It's age compared with the ages of other rocks. C. Less than the age than of the fossils it contains. D. The number of years since it formed. I think it's D but my friend says I'm wrong...
  75. Science

    The geologic time scale originally ordered Earth's rocks by: A. absolute age B. relative age*** C. composition D. decades and centuries Where did scientists originally get their information to develop the geologic time scale? A. They collected and studied rock samples in ...
  76. geology

    Building Isochrons and Determining the Ages of Three Rocks Page 15 of 17 For each of the three rocks listed below follow these steps to determine the rock's age of formation. 1. Prepare an isochron by plotting the points that represent the amounts of isotopes Rb-87 and Sr-87...
  77. geology / science

    the age of granite can be determind using radiometric dating, explain the basis for the determination of a 238 U- Pb radiometric date of 1120 Ma for a granite. I have as the answer 238 U decays to Pb with an experimental law, that is the amount of U and Pb in granite are ...
  78. science

    Which statement best explains why dating geologic materials from the Quarternary Period uses a different radioactive isotope than for materials from the cambrian Period? a. all rocks contain radioactive substances. b. some isotopes decay faster than others. c. not all isotopes...
  79. Geology

    There is also a graph i can't move it. Building Isochrons and Determining the Ages of Three Rocks Page 15 of 17 For each of the three rocks listed below follow these steps to determine the rock's age of formation. 1. Prepare an isochron by plotting the points that represent ...
  80. English Essay

    I am supposed to write a comparison essay for English. Related to Online Vs Traditional Dating. Could you help me make a strong thesis? Technology has brought many innovations in human life and one of the greatest for many is online dating. However just like Traditional dating...
  81. Chemistry(difficult)

    A moon rock collected by a U.S. Apollo mission is estimated to be 3.70 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb per 1.185 g of 238U in the rock? The half-life of 238U is t1/2...
  82. science

    The thermal energy of volcanoes and natural hot springs comes from trace amounts of radioactive minerals in common rock in the Earth's interior. Why isn't the same kind of rock at the Earth's surface warm to the touch?
  83. Science

    Choose the explanation that does the following: (1) identifies the element used in carbon dating and (2) explains why the element is used. A. iodine-131; iodine is present in the thyroid glands, is radioactive, and has a very long half-life B. nitrogen-14; radioactive carbon ...
  84. science

    Can someone help me find two specific reasons why radioactive dating/geology are evidence for evolution. I've read many articles online but i do not really understand the whole concept.
  85. earth

    3. What can scientists learn from the rate at which radioactive elements decay?
  86. Science

    What can scientists learn from the rate at which radioactive elements decay?
  87. Geology

    The age of granite can be determined using radiometric dating. How would I explain the basis for the determination of a 238 U-Pb radiometric date of 1120 Ma for granite? Any help gratefully received. Tough one. I wonder if the following search results might help? http://www....
  88. Science

    3. What can scientists learn from the rate at which radioactive elements decay? (1 point)
  89. Science

    3. What can scientists learn from the rate at which radioactive elements decay? (1 point)
  90. ChemB

    The activity of carbon 14 in living tissue is 15.3 disintegrations per minute per gram of carbon. The limit for reliable determination of age is based on carbon 14 is .10 disintegration per min per gram of carbon. Calculate the max age of a sample that can be dated accurately ...
  91. algebra 2

    In the formula A(t) = A0ekt, A is the amount of radioactive material remaining from an initial amount A0 at a given time t, and k is a negative constant determined by the nature of the material. An artifact is discovered at a certain site. If it has 72% of the carbon-14 it ...
  92. calculus

    A rock is thrown upward with a speed of 48 feet per second from the edge of a cliff 400 feet above the ground. What is the speed of the rock when it hits the ground? Use acceleration due to gravity as –32 feet per second squared and approximate your answer to 3 decimal places.
  93. Science

    A scientist from the United States conducts an experiment using miles per hour to measure speed. Why might this be confusing for scientists in other countries? A) Scientists in other countries don't usually perform experiments involving speed. B) Scientists in other countries ...
  94. science

    How does knowing the age of a lunar rock help estimate the age of the surface of a planet with no atmosphere?
  95. science

    How does knowing the age of a lunar rock help astronomers estimate the age of the surface of a planet with no atmosphere?
  96. Geoscience

    can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the history of the area, ...
  97. geollogy-radio metric dating and half lives

    How would I go about solving this problem? a granite contains150 parts per million (by atomic proportion) ppma of 235 U and 1050 ppma of 207 Pb. Using the decay rate from above, how old is this rock? My teacher said the answer was 2100. How did he get that? (Radio active ...
  98. Science

    6. Absolute dating provides an age in years for the rocks tested. True False
  99. Math

    Scientists use the Beaufort wind scale to approximate wind speed. The formula is B= 1.69 sqrt(s+4.45) -3.49 where B is the Beaufort number and s is the speed in miles per hour. To the nearest mile per hour, what is the approximate wind speed if the Beaufort number is 6?
  100. Science

    Radioactive carbon-14 dating has determined that a fossil is 5.7 x 10 to the third power years old. What is the total amount of the original Carbon-14 still present in the fossil?
  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99
  101. 100
https://www.jiskha.com/search/index.cgi?query=how+do+scientists+use+radioactive+dating+to+approximate+a+rock%27s+age