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Turn your science notes into a printable mind map

Upload lecture slides, a PDF, or a photo of a textbook page. DeckOwl builds a mind map you can edit, rearrange, and explore branch by branch.

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

Free · First set needs no signup · Creates mind maps in seconds

Why a custom science mind map works better than a generic printout

Generic printable diagrams cover the textbook's version of a topic, which may not match your teacher's unit or exam. A science mind map built from your own notes keeps the vocabulary, examples, and emphasis from your class, so the branches match what you will be tested on.

Start from your own lecture notes or textbook pages instead of a generic template
Edit branches and sub-points so the map reflects your teacher's terminology
Explore the map one branch at a time for focused review before a test
Export to PDF or DOCX on Plus when you need a printable copy

Example science mind map branches (cells, energy, matter)

Cell structureNucleus · mitochondria · cell membrane · ribosomes

PhotosynthesisLight-dependent reactions · Calvin cycle · chloroplast · glucose output

Newton's laws of motionFirst law (inertia) · second law (F = ma) · third law (action and reaction)

The water cycleEvaporation · condensation · precipitation · collection

Atomic structureProtons · neutrons · electrons · electron shells

Generate the full set

Built from your material

Paste notes or upload a PDF, DOCX, or PPTX, and the map follows your course's own terms and structure.

Editable and explorable

Rename branches, move topics, and expand or collapse sections so the map fits how you think about the subject.

Study it, then print it

Use the map in the browser for review on the free plan. Paid plans add PDF and DOCX export for printing.

How it works

Add your science notes

Upload a lab handout, chapter PDF, or slide deck, or take a photo of a page and let text recognition read it.

Generate the mind map

DeckOwl pulls out the main concepts and groups the supporting details under each branch.

Edit, explore, and export

Adjust the layout, then study in the browser or export a PDF on Plus to print a worksheet-style copy.

Mind maps also help with the connections that science exams test. Seeing how a cause links to an effect, or how a process feeds into the next stage, is easier when the branches are laid out visually and you can reorder them as you learn.

Because the map stays editable, you can add diagrams from lab sessions, remove topics you have mastered, and regenerate sections as your notes grow over the term.

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Frequently asked questions

How many branches should a science mind map have?

Most topics work well with 4 to 7 main branches, each with 2 to 4 sub-points. If a branch grows longer than that, split it into its own map so each one stays readable.

What is the best way to study a mind map for a science exam?

Cover the sub-points and try to recall each branch from its main label, then check yourself against the map. Redo the map from memory a day or two later to see what stuck.

Can I print my science mind map?

Printing needs an export, and PDF and DOCX export are included in the Plus plan at $39 per year or $7.99 per month. The free plan lets you study the map in the browser with 3 generations per month.

Does DeckOwl work with photos of printed notes?

Yes. Photos of pages are read with text recognition, so you can turn a handwritten or printed page into a mind map as long as the text is clear enough to read.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.