Using Geological Layers & Radioactive Dating to Determine the Earth's Age

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Which of these is like the layers of a cake?

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1. Which of these is most like the analogy of a lamp losing half of its brightness every so often?

2. Which best describes the sort of date gotten from geological layers?

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About This Quiz & Worksheet

Scientists use a combination of radioactive dating and geological layers to determine the age of the Earth. You'll be asked specific questions about these methods and what various qualities of rocks can reveal about their ages.

Quiz & Worksheet Goals

The quiz will ask you about:

  • Parts of the earth that are similar to layers of a cake
  • The concept that's similar to a lamp losing half of its brightness
  • What type of date is determined by geological layers
  • Pressure and time on rocks
  • Combining geological dating and radioactive dating

Skills Practiced

Skills practiced include:

  • Making connections - use your understanding of geological layers and radioactive dating to understand what their combination can reveal about the age of rocks
  • Information recall - access the knowledge you've gained regarding how scientists determine the ages of rocks
  • Reading comprehension - make sure you draw the most important information from the related lesson on determining the Earth's age

Additional Learning

To gain a deeper understanding of this concept, watch the related lesson called Using Geological Layers & Radioactive Dating to Determine the Earth's Age. The lesson covers the following learning objectives:

  • Define sedimentary rock
  • Understand what the depth of a rock says about its age
  • Learn what scientists have determined as the age of the Earth and why they came to that conclusion
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