Teach Core Practical 12 with or without a lab. Students set the incubators, run brine shrimp and seedling trials in an interactive virtual lab, explain their results using enzymes, and then test the same idea against 26 years of field records using Spearman’s rank.

What’s included
• Temperature and Development Virtual Lab (HTML, runs in any web browser): brine shrimp hatch rates and seedling growth at temperatures you choose, three repeats with means and standard deviations, method and variables, the ethical use of organisms, field data analysis with Spearman’s rank, lab versus field comparison, and exam-style questions with mark points
• PowerPoint (19 slides) for two lessons, with speaker notes: retrieval starter, climate change context, brine shrimp and seedlings, review, explanation and a model conclusion
• Student worksheet (Parts A to E), step by step, ideal for all abilities
• Teacher answers for every question, plus exam mark points and model conclusion

Covers
• 5.22 Core Practical 12: investigate the effects of temperature on the development of organisms (such as seedling growth rate or brine shrimp hatch rates), taking into account the ethical use of organisms
Mapped to Pearson Edexcel International A Level Biology. Also useful for other A-Level courses that cover this practical.

About the data
Temperatures are real Met Office Central England data (Open Government Licence). The field event dates are illustrative records based on published UK trends, clearly labelled for students.

Why teachers use it
• No brine shrimp, incubators or two-week wait: ideal for revision, cover lessons, absent students or schools without the equipment
��� Builds the skills examiners test: variables, means, optimum, enzyme explanations, ethics and statistical analysis

Written by Alliyah, QTS, former Head of Science with over 30 years’ experience. Independent resource, not endorsed by any exam board.

Files: HTML (virtual lab), PPTX, DOCX