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Stuff Every Geology Scout Should Know: free practice in 30-second cards

Stuff Every Geology Scout Should Know

Practice facts for the Geology merit badge. Not an official Scouting America credential.

Start Stuff Every Geology Scout Should Know ⚡ Today's sprint 🎙️ Voice mode

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Free to start, no sign-up. 81 cards so far. One Knowledge Score and day streak across all your courses.

Questions people ask

Is this practice test free?

Yes. The first 50 cards are free for everyone with no sign-up, each with the answer, why it is right and its sources. Aha Trivia members get all 81 cards and timed practice exams.

How many practice questions are there?

81 practice questions so far. Each one is a 3-choice card that takes about 30 seconds, and the course grows as new cards pass our source checks.

Where do the answers come from?

Every card lists the sources it was checked against, and each answer explains why it is right. If you think an answer is wrong, tap "Challenge this answer" in the game and it gets reviewed.

Can I study in the car?

Yes. Voice mode reads the questions out loud and you answer by voice.

Try 3 cards

  1. What does geology study?
    Show the answer

    Earth, its rocks, and how they change. Geology is a natural science about Earth, its rocks, and the processes that change them over time.

  2. What is a mineral?
    Show the answer

    A naturally occurring substance with a definite chemical makeup. Minerals are natural elements or compounds with a definite homogeneous chemical composition and ordered atomic arrangement.

  3. How is a mineral's streak tested?
    Show the answer

    By scratching it on a porcelain plate. Streak is found by scratching the sample on a porcelain plate and noting the powder color.

All 81 practice questions

The first 50 are free, with the answer, why it's right and the official sources. The other 31 (🔒) open with a membership (every test). Or play them as a game and track what you've learned.

Show all 81 questions
  1. What does geology study?
  2. What is a mineral?
  3. How is a mineral's streak tested?
  4. What does mineral hardness measure?
  5. What is cleavage in a mineral?
  6. What does luster describe?
  7. What is specific gravity used for?
  8. What is a rock?
  9. What are the three major rock types?
  10. How does an igneous rock form?
  11. How does a sedimentary rock form?
  12. What turns a rock into a metamorphic rock?
  13. What does the rock cycle show?
  14. What is the principle of superposition?
  15. What does original horizontality say about sediment deposition?
  16. What does the principle of cross-cutting relationships tell us about a fault?
  17. What is uniformitarianism?
  18. What does the principle of inclusions say about clasts in a sedimentary rock?
  19. What is faunal succession used for?
  20. What do radioactive isotopes help geologists find?
  21. What is radiocarbon dating used for?
  22. What is the lithosphere?
  23. What is the asthenosphere?
  24. What happens at a divergent plate boundary?
  25. What happens at a convergent plate boundary?
  26. What is a transform boundary like the San Andreas Fault?
  27. What did plate tectonics provide for continental drift?
  28. How do seismologists image Earth's interior?
  29. What did seismic studies reveal about the outer core?
  30. About how old is the Earth?
  31. What is a syncline?
  32. What is an anticline?
  33. What is a normal fault associated with?
  34. What is a thrust fault?
  35. What is a stereonet used for in structural geology?
  36. What is economic geology about?
  37. What does engineering geology help ensure?
  38. Why is hydrogeology important in arid regions?
  39. What are ice cores and sediment cores used for?
  40. Why do geologists study natural hazards?
  41. Before collecting mineral or rock samples, what should you get?
  42. Where is collecting usually prohibited?
  43. What is a safe alternative to collecting wild specimens?
  44. Why might pictures or sketches replace a physical collection?
  45. What should you follow while on geology field trips?
  46. What is reflection seismic used for?
  47. What is a core sample used for in subsurface exploration?
  48. What is a mineral's color useful for?
  49. What does effervescence test for in a mineral?
  50. What is a rock's texture and fabric studied for?
  51. What are the four categories of sedimentary rock? 🔒
  52. What is Quaternary geology the study of? 🔒
  53. What is planetary geology? 🔒
  54. What is the focus of petroleum geology? 🔒
  55. What is mining geology about? 🔒
  56. What can fossils tell us about ancient environments? 🔒
  57. What is burial and fossilization about? 🔒
  58. What is extinction? 🔒
  59. What is a stream gradient? 🔒
  60. What does an experiment on sediment settling show? 🔒
  61. Why might you need a magnifier when studying stream sediment? 🔒
  62. What does a geologic map show about rocks? 🔒
  63. What can a geologic map show about rock layers? 🔒
  64. What is the top five Earth resources list about? 🔒
  65. What is a subsurface structure map used for? 🔒
  66. What is stratigraphic correlation used for? 🔒
  67. What is a subsurface isopach map? 🔒
  68. What is a mineraloid? 🔒
  69. What is fracture in a mineral? 🔒
  70. What is magnetism used to test in minerals? 🔒
  71. What mineral tastes like table salt? 🔒
  72. What is a boudin in stretched rock? 🔒
  73. What is a dike in geology? 🔒
  74. What is a shear zone? 🔒
  75. What is orogenic wedge research about? 🔒
  76. What do magnetic stratigraphers look for? 🔒
  77. What is the Hadean eon? 🔒
  78. What is the Holocene epoch? 🔒
  79. When did the first modern Homo sapiens appear? 🔒
  80. What did the Neptunists believe about rocks? 🔒
  81. What is catastrophism? 🔒