Grade 10 Biology SBA 2026 – Written Test, Practical and Revision Questions
Grade 10 Biology SBA resources help Senior School learners prepare for the 2026 Biology School-Based Assessment, including written assessment, practical and project activities, revision questions and other competency-based tasks.
KCSEREVISION.COM provides Grade 10 Biology learners and teachers with revision notes, topical questions, examination papers, answers, marking schemes and assessment preparation resources for the 2026 academic year.
Grade 10 Biology SBA 2026
Biology is included among the STEM learning areas assessed under the 2026 Grade 10 School-Based Assessment programme.
KNEC provides separate guidance for Grade 10 projects and practical activities as well as Term 3 written assessments. Schools should therefore follow the instructions issued for each assessment component.
Teachers and school administrators should check the official KNEC Grade 10 written tests guidelines for current written-assessment information.
Biology Written Test 2026
The Grade 10 Biology written assessment forms part of the Term 3 School-Based Assessment programme.
KNEC has scheduled the Grade 10 written assessment tools to become available to schools from 5 October 2026. Schools should administer the assessments, mark learner work and upload the required scores by 23 October 2026.
| Written Assessment Activity | Date |
|---|---|
| Assessment tools available | 5 October 2026 |
| Administration and scoring period | 5–23 October 2026 |
| Final score upload date | 23 October 2026 |
Biology Projects and Practical Assessment
Grade 10 Biology is also included in KNEC’s broader 2026 schedule for Senior School projects and practical School-Based Assessments.
The official Grade 10 SBA project and practical tools were scheduled for access through the CBA Portal from 2 July 2026. KNEC’s schedule gives schools up to 31 October 2026 to upload scores for the relevant Grade 10 SBA projects and practical activities.
Teachers assess learners as they undertake the required activities and use the scoring guidelines supplied with the assessment tool.
Read more on our Grade 10 SBA Projects 2026 page.
Practical Skills in Grade 10 Biology
Biology involves observation, investigation, interpretation and practical application of scientific concepts. Learners should therefore develop practical skills alongside theoretical understanding.
Useful preparation may involve observing biological materials, recording observations accurately, interpreting diagrams and data, identifying structures, carrying out suitable investigations and drawing conclusions from evidence.
Learners should carefully follow teacher instructions and safety procedures during practical activities.
Grade 10 Biology Revision Questions
Grade 10 Biology SBA revision questions can help learners identify topics that need more attention before written and practical assessments.
Learners should attempt questions independently before checking answers or marking guidance. Any topic where several mistakes occur should be revised before another question set is attempted.
Access more Grade 10 topical questions and answers 2026 for subject-based practice.
Use Biology Revision Notes
Revision notes are useful when learners need to review concepts before attempting assessment questions.
Instead of repeatedly reading notes, learners should study a concept and then attempt to explain it without referring to the material. They can then answer suitable questions to test their understanding.
Browse the Grade 10 revision notes 2026 for additional Senior School resources.
Biology Diagrams and Scientific Skills
Learners should practise interpreting and producing biological diagrams where appropriate. Diagrams should be clear, properly labelled and relevant to the question being answered.
Grade 10 Biology revision should also include interpretation of tables, graphs, experimental observations and other scientific information.
These skills are important because competency-based assessment requires learners to apply knowledge rather than simply reproduce memorised definitions.
Use Complete Biology Examination Papers
After completing topical revision, learners should attempt full Biology examination papers under timed conditions.
Complete papers help learners practise moving between different topics, interpreting unfamiliar information and managing the available assessment time.
Access the Grade 10 exams 2026 collection for examination papers and marking resources.
How Biology SBA is Scored
Teachers should use the official scoring guides and rubrics supplied with the relevant KNEC assessment tool.
For practical and performance-based activities, the scoring criteria may consider the learner’s process, observations, application of scientific skills and achievement of the required task.
Read our Grade 10 SBA Scoring Guides 2026 page for additional teacher guidance.
Access Official Biology Assessment Tools
Official Grade 10 Biology SBA tools are accessed by authorised schools through the KNEC CBA Portal.
Schools should obtain official written tests, projects, practical instructions and scoring guides directly through authorised KNEC channels.
KCSEREVISION.COM provides revision and preparation resources and does not replace official KNEC assessment materials.
Follow the Grade 10 Biology Curriculum
Teachers should ensure that Biology revision questions and classroom assessment activities correspond with the current Grade 10 curriculum design and expected learning outcomes.
Official Senior School curriculum designs are available from the Kenya Institute of Curriculum Development (KICD).
More Grade 10 Biology Resources
KCSEREVISION.COM provides additional Grade 10 resources including Biology notes, topical questions, Term 1–3 examinations, SBA preparation resources, schemes of work and lesson plans.
For the complete Senior School assessment overview, visit the Grade 10 SBA 2026 page.
Grade 10 Biology SBA Updates
Continue checking KCSEREVISION.COM for updated Grade 10 Biology SBA revision questions, written-test preparation, practical resources, answers, marking schemes and Senior School Biology materials for 2026.
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