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Make rock quizzes from your own notes, not a browser add-on

DeckOwl is a web app, not an add-on for another quiz site. Upload a geology handout, lecture slides or photos of pages, and get multiple-choice, true/false or short-answer questions with explanations.

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Why a custom rock quiz beats a generic one

Students who want a quizizz rocks extension usually want a rock quiz they can run again and again, and DeckOwl builds one from your own material instead of a fixed question bank.

  • Questions drawn from your own PDFs, slides, DOCX files and photos of pages
  • Multiple choice, true/false and short-answer formats with explanations
  • Study in the browser, with no install or browser add-on required
  • Export options on paid plans for PDF, DOCX, Anki and CSV, plus QTI and Moodle XML on Pro
Example earth science quiz questions about rock types
What type of rock forms when magma or lava cools and hardens?Igneous rock. Magma and lava crystallize as they cool, which gives igneous rock its form.
Which rock type is most likely to contain fossils?Sedimentary rock. Layers of sediment are compacted and cemented over time, which can preserve organisms trapped within them.
True or false: metamorphic rock forms from existing rock changed by heat and pressure.True. Heat and pressure recrystallize minerals without fully melting the original rock.
What process turns loose sediment into sedimentary rock?Compaction and cementation. Pressure squeezes the grains together while minerals dissolved in water bind them.
Marble is the metamorphic form of which rock?Limestone. Heat and pressure recrystallize the calcite in limestone into a denser, interlocking texture.
Generate the full set

Questions from your material

Upload PDFs, DOCX or PPTX files, plain notes, or photos of pages. Text recognition reads the images so the quiz matches your course.

Three question formats

Get multiple choice, true/false and short-answer questions. Each one comes with an explanation for the correct answer.

Study in the browser

Take quizzes and review with spaced repetition flashcards in the browser. No install is needed to start.

How it works

Upload your rock unit

Add a PDF, slides or notes on igneous, sedimentary and metamorphic rocks.

Choose a question type

Pick multiple choice, true/false or short answer, then set how many questions you want.

Take the quiz and check explanations

Answer the questions, read why each answer is right or wrong, and retake the weak spots.

A quiz made from your lecture slides or textbook chapter tests the exact terms and examples your instructor used, such as the texture of basalt compared with granite or the layers in a sandstone outcrop.

Free plans give you 3 generations per month and browser study. Paid plans add unlimited generations, exports and spaced repetition.

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Frequently asked questions

How do I tell igneous, sedimentary and metamorphic rocks apart?

Igneous rocks form when magma or lava cools and hardens, often with interlocking crystals. Sedimentary rocks are layered and formed by compacted sediment, while metamorphic rocks form when heat and pressure change an existing rock.

How many questions should a rock quiz have for one unit?

Ten to fifteen questions is a practical range for one rock unit, enough to cover rock types, texture and formation. Shorter quizzes work well for daily review.

Is DeckOwl a browser extension for another quiz site?

No. DeckOwl is a web app you use in the browser, and it generates quizzes from your own PDFs, DOCX and PPTX files, notes or photos of pages.

Can I export a quiz I make in DeckOwl?

Exports are paid features. PDF, DOCX, Anki and CSV export are on Plus, and QTI 2.1 and Moodle XML export are on Pro.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.