Earth Science & Geology Quiz

Earth Science & Geology · Timed

20 questions · 10 min timer · Instant feedback

Earth is a planet in constant motion, shaped by powerful natural forces over billions of years. Earth science and geology help us understand everything from towering mountains and...

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All 20 questions in this Earth Science & Geology quiz
  1. Which type of rock is formed from the cooling and solidification of magma or lava?

    • A. Sedimentary
    • B. Metamorphic
    • C. Igneous
    • D. Evaporite
  2. What are the giant waves caused by undersea earthquakes?

    • A. Tides
    • B. Tsunamis
    • C. Rip curls
    • D. Currents
  3. What is a sedimentary deposit characterized by a coarse-to-fine upward sequence of grains, often formed by underwater landslides?

    • A. Cross-bedding
    • B. Graded bedding
    • C. Varves
    • D. Mudcracks
  4. What is the hardest natural mineral?

    • A. Diamond
    • B. Gold
    • C. Quartz
    • D. Topaz
  5. What is the term for a continental margin that is not a plate boundary and is characterized by a wide continental shelf, like the U.S. East Coast?

    • A. Active Margin
    • B. Passive Margin
    • C. Transform Margin
    • D. Subduction Margin
  6. What is the name for the region of space surrounding Earth where the planet's magnetic field dominates over the solar wind?

    • A. Ionosphere
    • B. Magnetosphere
    • C. Exosphere
    • D. Stratosphere
  7. What scale is most commonly used by modern seismologists to measure the total energy released by a large earthquake?

    • A. Richter Scale
    • B. Mercalli Scale
    • C. Moment Magnitude Scale (Mw)
    • D. Beaufort Scale
  8. What was the name of the supercontinent that existed approximately 335 million years ago and began to break apart about 175 million years ago?

    • A. Gondwana
    • B. Laurasia
    • C. Pangea
    • D. Rodinia
  9. Which landscape feature is characterized by sinkholes, caves, and disappearing streams, formed by the dissolution of soluble bedrock?

    • A. Glacial till
    • B. Karst topography
    • C. Arid desert
    • D. Volcanic plateau
  10. What is the term for a large rock that has been transported by a glacier and left behind in an area with a different type of bedrock?

    • A. Moraine
    • B. Drumlin
    • C. Glacial Erratic
    • D. Esker
  11. What is the term for an underground layer of water-bearing permeable rock, gravel, or sand from which groundwater can be extracted?

    • A. Water Table
    • B. Aquifer
    • C. Artesian Well
    • D. Watershed
  12. What is the general term for all fragmented material ejected by a volcano during an eruption, ranging from fine ash to large boulders?

    • A. Magma
    • B. Tephra
    • C. Lava
    • D. Basalt
  13. What is the most abundant metal in Earth's crust?

    • A. Gold
    • B. Iron
    • C. Aluminum
    • D. Copper
  14. What is the study of earthquakes called?

    • A. Geology
    • B. Seismology
    • C. Meteorology
    • D. Paleontology
  15. Which rock floats in water?

    • A. Obsidian
    • B. Granite
    • C. Pumice
    • D. Basalt
  16. What is the name for molten rock beneath Earth's surface?

    • A. Lava
    • B. Sediment
    • C. Basalt
    • D. Magma
  17. Which layer of the Earth is composed primarily of liquid iron and nickel and is responsible for generating the planet's magnetic field?

    • A. Crust
    • B. Mantle
    • C. Outer Core
    • D. Inner Core
  18. What is the term for the replacement of one mineral by another through the action of hydrothermal fluids, without melting the rock?

    • A. Metamorphism
    • B. Metasomatism
    • C. Sublimation
    • D. Solidification
  19. Which fundamental law of geology states that in an undisturbed sequence of rocks, the oldest layer is at the bottom?

    • A. Law of Cross-Cutting Relationships
    • B. Law of Original Horizontality
    • C. Law of Superposition
    • D. Law of Faunal Succession
  20. What is the transition layer in the ocean where temperature decreases rapidly with increasing depth?

    • A. Halocline
    • B. Pycnocline
    • C. Thermocline
    • D. Bathycline