An interactive browser-based pulse rate simulator plus printable pupil worksheet and full teacher mark scheme. No software required opens in any browser. Includes: animated heartbeat simulator (4 activities: resting, walking, running, sprinting), Compare Activities bar chart, Count the Beats 30-second timed mode with accuracy feedback, collapsible learning intentions and success criteria, pupil recording sheet (10 marks, A4 PDF), and full teacher mark scheme with grade guidance. CfE Outcome: SCN 3-12a | National 3 Science | The Cardiovascular System

This resource package for Scottish National 5 and Higher Chemistry includes a standalone, offline-capable HTML electrolysis simulator that lets students toggle between course levels to visually trace ion migration and product formation across five different electrolytes. Alongside the digital simulator, the pack contains a structured pupil worksheet for recording predictions and writing equations, a comprehensive teacher mark scheme for quick grading, and a clean, professional cover image,

This interactive educational resource package is designed for the Scottish National 3 Science and National 4 Chemistry curriculums, directly supporting the Atomic Structure & Chemical Changes units. The core component is an offline-capable, standalone digital app (atomic-structure-builder.html) that allows pupils to tap any of the first 20 elements to dynamically view its Bohr model, particle counts, and electron configuration, or test themselves using a built-in multiple-choice quiz mode. Alongside the digital builder, the package includes a 20-mark pupil recording sheet (atomic-structure-recording-sheet.pdf) to guide students through data collection, core conceptual questions, and self-assessment, a matching teacher mark scheme (atomic-structure-mark-scheme.pdf) with complete grading guidance and suggested grade boundaries, and a clean, modern cover image (atomic-structure-cover.png) to complete the resource pack.