Logo

Empowering education through technology.

Legal

  • Policies, GDPR & Legal

FAQs

    Contact Us

    • support@classroom42.com
    • 01789 569299

    Socials

    • Twitter
    • Facebook

    © 2026 Classroom 42. All rights reserved.

    Logo
    MembershipAbout UsContact Us
    Log in
    Course

    KS3 Biology

    Teachers - get access to all topics for teachers and pupils

    ExaminatorQuizzesVideosCheat SheetsMy Work
    Activity Generator Exam Builder
    Topic Selector
    Cells as a Fundamental Unit of Living OrganismsHow to Observe, Interpret and Record Cell Structure Using a Light MicroscopePlant and Animal CellsDiffusionUnicellular Organisms: Structural AdaptationsMulticellular Organisms: Hierarchical Organisation
    The Human Skeleton: Structure and FunctionBiomechanicsMuscles: Function and Antagonistic Muscles
    The Content of a Healthy Human DietConsequences of Imbalances in the Human DietThe Human Digestive SystemBacteria in the Human Digestive System
    The Human Gas Exchange System: Structure and FunctionThe Breathing MechanismImpact of Lifestyle and Health Conditions on the Gas Exchange System
    Male and Female Reproductive SystemsThe Menstrual CycleReproduction in Humans
    Effects of Lifestyle on Human HealthEffects of Recreational Drugs
    How Do Plants Obtain Nutrition and Water?Gas Exchange in PlantsReproduction in Plants
    Photosynthesis: Reaction and Its Importance to LifeAdaptations for Photosynthesis in Leaves
    Aerobic RespirationAnaerobic Respiration
    EcosystemsFood WebsHuman Food SecurityThe Effect of the Environment on Organisms
    HeredityThe DNA Model and Its DevelopmentDifferences Between SpeciesVariation Within SpeciesCompetition, Natural Selection and ExtinctionImportance of Maintaining Biodiversity
    Topic Selector
    Cells as a Fundamental Unit of Living OrganismsHow to Observe, Interpret and Record Cell Structure Using a Light MicroscopePlant and Animal CellsDiffusionUnicellular Organisms: Structural AdaptationsMulticellular Organisms: Hierarchical Organisation
    The Human Skeleton: Structure and FunctionBiomechanicsMuscles: Function and Antagonistic Muscles
    The Content of a Healthy Human DietConsequences of Imbalances in the Human DietThe Human Digestive SystemBacteria in the Human Digestive System
    The Human Gas Exchange System: Structure and FunctionThe Breathing MechanismImpact of Lifestyle and Health Conditions on the Gas Exchange System
    Male and Female Reproductive SystemsThe Menstrual CycleReproduction in Humans
    Effects of Lifestyle on Human HealthEffects of Recreational Drugs
    How Do Plants Obtain Nutrition and Water?Gas Exchange in PlantsReproduction in Plants
    Photosynthesis: Reaction and Its Importance to LifeAdaptations for Photosynthesis in Leaves
    Aerobic RespirationAnaerobic Respiration
    EcosystemsFood WebsHuman Food SecurityThe Effect of the Environment on Organisms
    HeredityThe DNA Model and Its DevelopmentDifferences Between SpeciesVariation Within SpeciesCompetition, Natural Selection and ExtinctionImportance of Maintaining Biodiversity