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Would love measure what dating does radioactive called the prone

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

152,146 results

  1. 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. ...
  2. 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 ...
  3. 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 ...
  4. 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 ...
  5. 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 ...
  6. 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 ...
  7. 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 ...
  8. 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...
  9. 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 ...
  10. 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 ...
  11. 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 ...
  12. 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 ...
  13. 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 ...
  14. 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 ...
  15. 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 ...
  16. 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 ...
  17. 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 ...
  18. 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 ...
  19. 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 ...
  20. Science

    How does the C horizon form? Rainwater washes clay minerals from the A horizon to the C horizon Plant roots weather pieces of rock plants add organic material to the soil bedrock weathers, and breaks up into soil particles.** What makes up soil besides rock particles, minerals...
  21. MS SUE PLZ HELP

    How does the C horizon form? Rainwater washes clay minerals from the A horizon to the C horizon Plant roots weather pieces of rock plants add organic material to the soil bedrock weathers, and breaks up into soil particles.** What makes up soil besides rock particles, minerals...
  22. science

    How can radioactive dating help determine the absolute age of a rock (or rock layer)?
  23. 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 ...
  24. science

    10. Which soil layer contains the most humus? (1 point) A horizon B horizon C horizon D horizon its the O horizon, i know this. But i guess it wants you to tell which is closest 14. Which of the following usually causes creep? (1 point) volcanic activity freezing and thawing ...
  25. biology

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

    I really need help! Can someone tell me if my answer is correct? Question; Explain the difference between carbon-14 reading for the human skull and brown rock. Why is there such a difference? What does this tell you about dating extremely old objects? My answer; The carbon ...
  27. Science ASAP

    A geologist is studying a layer of soil in the Sahara. The soil layer contains little humus but a lot of clay and other rock particles. Which soil layer is it? A) A horizon B) B horizon C) C horizon D) bedrock
  28. Science....

    1.If a geologist found two fossils of different species buried next to each other in a rock layer, he or she might hypothesize that the two organisms may have been alive during the same time period. true*** false 2.How do layers B and D compare in age? If rock layers between B...
  29. Ecology

    I also have to determine the deepest layer of mature soil--would it be the A Horizon, since it is decomposed organic matter? E Horizon is leaching, and anything downward is rock decomposing, so I think it has to be the A Horizon but I wanted to check.
  30. 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 ...
  31. 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...
  32. 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 ...
  33. science

    how do layers b and d compare in age? if rock layers between b and d have eroded away,what is the boundary between b and d called
  34. Earth, Space and Science

    8. A geologist is studying a section of sedimentary rock layers that have been newly exposed by a landslide. Based on what principle, the geologist would assume that the layers increased in age as they looked at them from top to bottom. A. unitarianism B. Principle of ...
  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. ROCKS :D just want to make sure.

    knowing nothing else, what could the relative age of two rocks tell you about them? one rock is 10,000 years old, and the other is 8,000 years old. one rock is older than the other they both have fossils in them one rock is closer to the surface than the other.**************
  37. Science

    In my US History Unit test number 15 says how do layers B & D compare in age if rock layers between be and D have eroded away what is the boundary between be and D called? I cannot find a graph related to this question
  38. Science

    How do layers B and D compare in age? If rock layers between B and D have eroded away, what is the boundary between B and D called? My answer: Layer D is older than layer B. If rock layers between B and D have eroded away, the boundary between B and D are called, an unconformity
  39. science

    geologists determine a rocks relative age and....?
  40. 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. ...
  41. 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 ...
  42. sci 207

    Geologists are responsible for identifying and mapping mineral resources. But mineral resources are buried below the soil and covered with vegetation. How do you suppose geologists in the field find clues about the distribution of rock types?
  43. 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
  44. 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 :)
  45. Science HELP!!!!

    1.To study a rock sample, geologists observe the rock's mineral, composition, color, and temperature. true false*** 2.finds a rock with layers and smaller pieces of other rocks embedded in it. the rock is most likely A igneous B sedimentary*** C metamorphic D chemical 3. ...
  46. 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 ...
  47. 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?
  48. 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 ...
  49. Science

    (1)Suppose a lava flow was found between two sedimentary rock layers. How could you use the lava flow to learn about the ages of the sedimentary rock layers?
  50. Science: Drifting Continents

    Sandstone is a sedimentary rock. Which of the following characteristics would you look for in a piece of sandstone? A) Rock has sparkly or alternating color layers that are bent or folded B) Rock has layers and smaller pieces of rock in it. It also has fossil in it C) Rock has...
  51. Geogoly

    Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
  52. Geology

    Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
  53. Interesting Geometry Probem

    I am bulding a sculpture out of rock and need help figuring out how much rock to buy... Here are the figures... 1 ton of 1.5" rock covers 107 sq. ft. My sculpture will be comprised of 24 layers of rock 2" thick. Each layer will be aproximatly 3ft. by 3ft. How many tons of rock...
  54. 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...
  55. English

    1. Go straight to First Street. 1-1. Go straight to the First Street. (Do we have to use 'the' or not?) 2. It's just next to the hospital. 2-1. It's only next to the hospital. (Are both the same expressions?) 3. I'll go to the railroad station. 3-1. I'll go to the reailway ...
  56. 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 ...
  57. Histroy

    Find one difference between the Arizona state constitution and the US Constitution. Explain why you think this difference occurred. One difference that I found between my state constitution (AZ) and the U.S. Constitution is the issue of voting. Things that are voted on country...
  58. 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 ...
  59. 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...
  60. English

    1. Tell me what you won. 2. Tell me what you won in the competition. 3. Tell me what you won in the race. 4. Tell me what you won in the English speech contest. ================== Are they all grammatical? Is 'what' an interrogative pronoun? Or is 'what' a relative pronoun?
  61. 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 ...
  62. Biology

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

    1. They drilled through several layers of rock to reach the oil. 2. They drilled through several layers of a rock to reach the oil. 3. They drilled through several layers of rocks to reach the oil. ========================= Which one is right? Do we have to use 'rock,' 'a rock...
  64. Science

    Can you please tell me about what the difference between a dilute and a concentrated souloution is? Can you please tell the difference between a acid and a base? What are their similarities and their differences? How can we know when somehting is a acid and when something is a...
  65. Science

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

    What is the deepest soil layer? A. subsoil B. topsoil C. bedrock D. humus http://www.enchantedlearning.com/geology/soil/ a becouse you have to use process of elemenation bedrock its bedrock because bedrock it in fact the deepest layer of soil to tell you subsoil is not the ...
  67. Chemistry 1046

    Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years. A rock contains 65.7% of the amount of uranium- 238 that it contained ...
  68. science

    how do geologists determine the texture of a rock
  69. English

    Can anyone here tell me any of the stories you used to tell your kids of your past lifes? I need to write one for English, and my mom doesn't want to tell me one. I just need examples.. or maybe you guys can give me a story I can use? ^.^ Just a story you would tell your ...
  70. Chemistry

    Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years. A rock is found to contain 82.7% of the amount of uranium-238 that it ...
  71. 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? ...
  72. trig

    Alan is using the equation mg sin A = umg cos A to determine the coefficient of friction, u, between a flat rock and a metal ramp. Find u to the nearest hundredth, if the rock begins to slide at 19º.
  73. Math

    Alan is using the equation mg sin A = umg cos A to determine the coefficient of friction, u, between a flat rock and a metal ramp. Find u to the nearest hundredth, if the rock begins to slide at 19º.
  74. math (PLZ HELP ASAP)

    The students asked their math teacher to tell them her age. She didn’t want to tell them, but she replied, “If you take two years from my present age the result will be three times my son’s age, and seven years ago my age was twice what his will be in two years.” How ...
  75. 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
  76. Chemistry

    How do you find Absolute error and how do you find relative error? Absolute error is the difference between the experimental value and the actual value. Relative error, usually expressed as a percent, is the error relative to the correct value. For example, ABSOLUTE ERROR: We ...
  77. Science

    How do you use nitrogen to determine the radioactive age of a fossil?
  78. science

    A geologists working in a national park finds a mineral he is carrying a kit that contains a penny, a hand lens, a piece of tile, a geologic hammer, and a jackknife. Describe how the geologists can use these items to determine some of the minerals characteristics.
  79. Science

    A geologists working in a national park finds a mineral he is carrying a kit that contains a penny, a hand lens, a piece of tile, a geologic hammer, and a jackknife. Describe how the geologists can use these items to determine some of the minerals characteristics.
  80. 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...
  81. Science

    Which of the following units are in order from smallest to largest? a) Epoch, period, era. b) Era, epoch, period. c) Period, era, epoch. d) Epoch, era, period. True or False? Folding, as well as motion along faults, can change the position of rock layers and how they line up ...
  82. 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.
  83. English Expression

    Let me tell you my day. Let me tell you my daily schedule. Let me tell you my daily activities. If I want to tell others what I do from morning tll night, which expression should I use among the three? Do you have better expressions?
  84. English

    for WFE book i hve some questions in chapter 8 jcob say he not ready to be old yet, tell what he mean by this, what determine age, when one become old? this just be when you feel old u be old? it not have anything to do with age?
  85. 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. ...
  86. English - Native speakers

    Hello once again! Can you tell me the difference between Don't underestimate me! and Don't underrate me! Which one is more used in English and what's the difference between those two words? Is there any other similar word? My second question. Can we say both I'm Croatian and I...
  87. 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
  88. earth

    Could you tell a story of the rock cycle using a rock called Roger the Rock??
  89. 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 ...
  90. 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...
  91. Math

    Amita decides that she wants the molds to have a square base.How many of the possible molds can she use?
  92. Science

    The half-life of an element is important for determining the _______ of a rock. A. relative age B. absolute age C. mineral makeup D. decomposition rate Is it B?? Which one of the following is not left in the land as a result of continental glaciers? A. Eskers B. Loess C. ...
  93. 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 ...
  94. Language

    What's the easiest way to tell the difference between participles and gerund? Besides that one is a adjective and the other one is a noun and the type of questions they ask.
  95. 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 ...
  96. English

    1. Tell me the reason why you came late. 2. Tell me why you came late. (In #1, 'why' is a relative adverb. In #2, 'why' is a relative adverb or an interrogative adverb. Is that right?) 3. This is how he solved the problem. (In this sentence, 'how' is a relative adverb. 'the ...
  97. Science

    1. Under which of the following conditions would a fossil most likely form? (1point) a. A living thing dies and sediment is very slowly deposited on top of i’s body. b. A living thing dies and sediment quickly covers its body. <- c. A living thing dies and its skeleton is...
  98. Math (excel formulas)

    I am finding absolute and relative differences in excel. I have a compared value of 1.00 (D6) and a reference value of 38.50 (D6). I found the absolute difference to be -37.50 (D6-D9). For the relative difference I took the compared value of 1.00 (D6) and subtracted the ...
  99. 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....
  100. Science Help

    Can someone give a short summary of the difference between Mitosis and meiosis? I can't tell the difference.
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