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IB Biology · Nov 15, 2025 · 6 min read

IB Biology: Natural Selection Definition, Process, Examples

IB Biology natural selection explained: clear definition, step-by-step process, and exam-ready examples (antibiotic resistance, moths, finches).

IB Biology · Nov 15, 2025 · 7

IB Biology: What Is an Ecosystem?

IB Biology guide to what an ecosystem is: definition, biotic vs abiotic factors, energy flow, nutrient cycling, and exam tips for data questions.

IB Biology · Nov 15, 2025 · 7

IB Biology: Correct General Equation for Respiration

IB Biology students: learn the correct general equation for cellular respiration, how to interpret it, and how it shows up in exam questions.

IB Chemistry · Nov 15, 2025 · 7

IB Chemistry: Calculate pH from [H+] Fast

IB Chemistry guide to calculate pH from hydrogen ion concentration [H+]. Learn the formula, steps, examples, mistakes and exam tips fast.

IB Biology · Nov 15, 2025 · 7

IB Biology: What Does Starch Do for a Plant?

IB Biology guide to what starch does for a plant: storage, osmosis, photosynthesis links, transport limits, and exam-ready tips in minutes.

IB Physics · Nov 15, 2025 · 6

IB Physics: What Does Ohm’s Law State?

IB Physics guide to Ohm’s Law: what it states, when it applies, how to read I-V graphs, and exam tips to use V=IR with confidence.

IB Physics · Nov 15, 2025 · 7

IB Physics: How to Calculate Electrical Power Fast

IB Physics guide to calculating the power of an electrical device using P=IV, P=I²R, and V²/R, plus exam tips, pitfalls, and practice links.

IB Physics · Nov 15, 2025 · 7

IB Physics: What Is Amplitude in a Wave?

IB Physics amplitude explained clearly: definition, graphs, energy link, misconceptions, and exam tips with RevisionDojo practice tools and links.

IB Physics · Nov 15, 2025 · 7

IB Physics: Formula for Absolute Uncertainty

IB Physics absolute uncertainty formula explained with examples for analogue, digital, and repeats, plus IA and exam tips to report data correctly.

IB English · Nov 14, 2025 · 8

IB English: Power and Corruption Theme Guide

IB English guide to power and corruption in literature: a fast checklist, technique-led analysis steps, exam tips, and RevisionDojo tools to practise.

IB Chemistry · Nov 14, 2025 · 7

IB Chemistry: Why Noble Gases Are Inert (Explained)

IB Chemistry explains why noble gases are inert: full valence shells, high ionization energy, weak forces, and rare xenon exceptions.

IB English · Nov 14, 2025 · 8

IB English Paper 2: Comparative Essay Step-by-Step

IB English Paper 2 made simple: a step-by-step guide to planning, structuring, and writing comparative literary essays with confidence and speed.

IB English · Nov 14, 2025 · 8

Peer Editing for IB English Literature Essays

IB English peer editing made simple: use a smart checklist, give rubric-aligned feedback, and revise faster with RevisionDojo tools and routines.

IB Chemistry · Nov 14, 2025 · 6

Is CCl4 Polar or Nonpolar? IB Chemistry Guide

IB Chemistry explanation of whether CCl4 is polar or nonpolar. Learn bond dipoles, tetrahedral symmetry, and exam-ready wording in minutes.

IB English · Nov 14, 2025 · 7

IB English: Modernism vs Postmodernism Made Clear

IB English guide to Modernism vs Postmodernism: key features, exam signals, and how to analyze techniques for Paper 1 and Paper 2 with confidence.

IB English · Nov 14, 2025 · 8

IB English: Why Titles and Epigraphs Matter

IB English guide to titles and epigraphs: learn how they frame theme, tone, and intent, and how to use them for sharper Paper 1 and 2 analysis.

IB English · Nov 14, 2025 · 8

IB English: Tragedy vs Comedy in Drama Texts

IB English guide to analyzing tragedy and comedy in drama texts. Learn structure, staging, and exam-ready methods for Paper 1 and Paper 2 success.

IB English · Nov 14, 2025 · 7

IB English: Belonging vs. Alienation (Exam Analysis)

IB English guide to themes of belonging and alienation: learn what to track in voice, setting, and symbols so your exam essays stay sharp.

IB English · Nov 14, 2025 · 8

IB English A Syllabus: Prose, Poetry, Drama Essentials

IB English syllabus essentials for prose, poetry, and drama. Learn what to analyze, how to revise, and how to score higher in exams with RevisionDojo.

IB English · Nov 14, 2025 · 7

Stream of Consciousness for IB English: Technique & Purpose

IB English stream of consciousness explained: what it is, why writers use it, and how to analyze it for Paper 1, Paper 2, and HL Essay fast.

IB English · Nov 14, 2025 · 8

IB English: The Role of the Unreliable Narrator

IB English guide to the unreliable narrator: how to spot bias, omissions, and contradictions, then turn them into high-scoring Paper 1 and 2 analysis.

IB English · Nov 14, 2025 · 7

IB English: Gender and Identity in Modern Literature

IB English guide to gender and identity in modern literature: changing representations, key techniques, exam-ready angles for Paper 1, Paper 2, and HL Essay.

IB English · Nov 14, 2025 · 8

IB English: Unreliable Narrators & Reader Engagement

IB English guide to unreliable narrators: spot bias, omissions, and contradictions, and explain how they boost reader engagement in exam essays.

IB English · Nov 14, 2025 · 8

IB English: Chronology vs Nonlinear Narrative Analysis

IB English guide to chronology vs nonlinear narrative. Learn how structure shapes meaning, pacing, character insight, and exam-ready commentary.

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      IB Subjects

      • Arabic A
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      • Arabic ab initio
      • Arabic B
      • Biology
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      • Chemistry
      • Chinese A Lang & Lit
      • Chinese B
      • Computer Science (CS)
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      • French ab initio
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      • German A Lit
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      • Arabic A
      • Arabic A Lit
      • Arabic ab initio
      • Arabic B
      • Biology
      • Business Management
      • Chemistry
      • Chinese A Lang & Lit
      • Chinese B
      • Computer Science (CS)
      • Computer Science (First Exam 2027)
      • Design Technology (DT)
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    • Psychology
    • Psychology (First Exam 2027)
    • Spanish A
    • Spanish A Lit
    • Spanish ab initio
    • Spanish B
    • Sports, exercise and health science (SEHS)
    • Theory of Knowledge (TOK)
    • World Religions
    • Design Technology (First Exam 2027)
    • Digital Society (DS)
    • Economics
    • English A Lang & Lit
    • English A Lit
    • English B
    • Environmental systems and societies (ESS)
    • French A
    • French A Lit
    • French ab initio
      • French B
      • Geography
      • German A
      • German A Lit
      • German ab initio
      • German B
      • Global Politics
      • History
      • History (First Exam 2028)
      • Mathematics Analysis and Approaches (AA)
      • Mathematics Applications & Interpretation (AI)
      • Philosophy
      • Physics
      • Psychology
      • Psychology (First Exam 2027)
      • Spanish A
      • Spanish A Lit
      • Spanish ab initio
      • Spanish B
      • Sports, exercise and health science (SEHS)
      • Theory of Knowledge (TOK)
      • World Religions