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Turn your lesson notes into free online quizzes in minutes

Upload a PDF, slides or photos of a worksheet and get multiple-choice, true/false or short-answer questions with explanations for every answer.

Create quizzes nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates quizzes in seconds

Why generate quizzes from your own lessons

Ready-made quizzes rarely match the exact order, vocabulary and emphasis of your class, so students end up studying the wrong things. A set of free online quizzes built from your own slides or notes covers what you taught, using your terms and examples.

Questions come from the lesson material you upload, not a generic bank.
Every answer includes an explanation students can read after they respond.
Photos of printed pages are read with text recognition, so paper handouts work.
The free plan includes 3 generations per month and no credit card is needed to start.

Example photosynthesis quiz questions for high school biology

Where in the chloroplast does the light-dependent reaction take place?In the thylakoid membranes. Chlorophyll in these membranes captures light energy to make ATP and NADPH.

What are the overall reactants and products of photosynthesis?Carbon dioxide and water, using light energy, produce glucose and oxygen. Oxygen is released as a byproduct of splitting water.

Which gas do plants release during the light-dependent reactions?Oxygen. Water molecules are split to replace electrons lost by chlorophyll, and the oxygen left over is released.

Where does the Calvin cycle take place, and what does it need from the light reactions?In the stroma of the chloroplast. It uses ATP and NADPH from the light reactions to fix carbon dioxide into sugar.

True or false: only leaves can carry out photosynthesis.False. Any green tissue with chloroplasts can photosynthesize, such as green stems, though leaves do most of the work because they are broad and well exposed to light.

Generate the full set

Built from your material

Upload PDFs, DOCX or PPTX files, plain notes, or photos of a page. Text recognition reads the pages so the quiz matches what you actually taught.

Three question types

Multiple-choice, true/false and short-answer questions, each with an explanation so students learn from wrong answers as well as right ones.

Study in the browser

The free plan lets you take quizzes and study online right away. Paid plans add exports to PDF, DOCX, Anki and CSV, plus QTI 2.1 and Moodle XML on Pro.

How it works

Upload your lesson

Add a PDF, slide deck, Word file or notes. You can also photograph a worksheet or textbook page.

Choose the question type

Pick multiple-choice, true/false or short-answer questions, then generate a set based on your material.

Review and run it

Check the questions and explanations, then study online or export when you are on a paid plan.

DeckOwl reads your files and writes questions with a short explanation for each answer. You can run the quiz in the browser on the free plan, then move to Plus or Pro when you need PDF, Word or LMS-ready exports for class use.

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Frequently asked questions

How many quiz questions should I write for a photosynthesis lesson?

Ten to fifteen questions is a practical range for a quick check after one lesson. Mix recall questions about terms and steps with a few that ask students to apply the process to a new situation.

How do I write quiz questions that test understanding instead of memory?

Ask students to predict what happens when one input changes, such as less light or less carbon dioxide. Explanations that point back to the mechanism help students connect the answer to the reason behind it.

Can I export the quizzes to Moodle or Word?

Yes, on paid plans. Plus includes PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML export. The free plan lets you study in the browser without exports.

Is there a free plan, and what does it include?

Yes, the free plan includes 3 generations per month and studying in the browser. Students can get 40% off paid plans with a school email.

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Keep exploring the topic

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