KS3 Biology — Stem Cells in Animals — Free Worksheet

🧫 Introduce your students to stem cells with this free KS3 Biology worksheet — no preparation required, just download and use. Stem cells are unspecialised cells that can divide and develop into different cell types through a process called differentiation, and this taster resource introduces the basics for students aged 11–14.

📦 What's included:

3 questions:

Multiple choice — defining stem cells

Fill-in-the-blank — covering zygote, mitosis, embryonic stem cells, differentiation, and adult stem cells

Short answer — naming the two jobs of adult stem cells and explaining why specialised cells cannot naturally change back into stem cells

Full answer key included.

🎬 Watch the free video lesson: https://www.youtube.com/watch?v=KYint8W1eYY

👩‍🏫 Google Classroom ready — copy the link straight into your assignment. Print as many copies as your class needs.

🔓 This is a taster only. The full 100-mark worksheet goes deeper into how differentiation works at the level of genes, comparing embryonic and adult stem cells in detail, the role of bone marrow, bone marrow transplants and leukemia, and induced stem cells — available on its own, or as part of the Complete Lesson Pack with extension activities. Save £1 buying the pack (£3 + £3 = £6 separately, £5 together).

Price: Free