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This engaging virtual chromatography lab allows students to model the process of separating mixtures and identifying substances using Rf values—without needing any lab equipment. Perfect for classrooms with limited lab access, remote learning, flipped lessons, or review of practical skills. Students begin by placing dye samples onto chromatography paper, run the solvent front, and watch as the dyes separate based on solubility and polarity. They then use a movable on-screen ruler to collect measurements, record results in a structured data table, and calculate Rf values. Finally, students compare their results to reference data to identify unknown dyes. This resource is ideal for MYP Science, IGCSE and general middle and high school chemistry/biology units that introduce chromatography or separation techniques. What’s Included ✔ Structured Student Worksheet (PDF) including: Clear step-by-step instructionsData table for measurements and Rf calculationsAnalysis and conclusion questionsIdentification task using known dye Rf values Skills Developed Accurate measurement and data recordingCalculation of Rf valuesInterpretation of chromatographic resultsUsing reference data to identify unknown substancesScientific reasoning and evidence-based explanations Curriculum Connections MYP Sciences: Strand-specific inquiry, data analysis, and evaluationIGCSE / GCSE: Separation techniques and chromatography (Chemistry and Combined Science) Why Teachers Love This Resource ✅ Easy to use — just open and go✅ Encourages hands-on thinking even without lab access✅ Builds genuine practical and analytical skills✅ Compatible with Chromebooks, iPads, laptops & whiteboards✅ Perfect for class, homework, revision, or blended learning

Bring complex enzyme kinetics concepts to life with this comprehensive and interactive online catalase simulation! Accessible anywhere with an internet connection via a simple link provided in the downloadable PDF, this virtual lab provides a robust platform for students to investigate enzyme function without the need for complex wet lab setups or hazardous materials. Explore Key Concepts Interactively: Basic Kinetics: Students manipulate temperature, pH, enzyme concentration [E], and substrate concentration [S] (H₂O₂) to observe their impact on the initial reaction rate (measured via O₂ production).Inhibitor Effects: Investigate the distinct mechanisms of:Competitive Inhibition: Using Hydroxylamine Sulfate.Non-Competitive Inhibition: Using Sodium Azide. Michaelis-Menten Kinetics (Vmax Mode): A dedicated mode allows students to generate Rate vs. [S] data, visualise Michaelis-Menten plots, and explore the effects of competitive and non-competitive inhibitors on Vmax. Molecular Visualisation: A dynamic animation window shows catalase enzymes, substrates, inhibitors, and products interacting in real-time, including visual cues for denaturation and inhibition. Data Generation & Analysis: The simulation generates realistic data (O₂ ppm vs. time), calculates initial rates from the graph tangent, and presents results in tables. Data can be exported to CSV for further analysis in spreadsheet software. Why Choose This Simulation? Engaging & Visual: Captures student interest more effectively than static resources.Safe & Cost-Effective: Eliminates safety concerns (H₂O₂, azide) and equipment costs.Curriculum-Aligned: Covers essential topics in enzyme structure, function, and kinetics for standard and advanced biology courses.Easy Access & Use: Runs online in any modern web browser (Chrome, Firefox, Edge, Safari). No installation needed! Students just click the link in the provided PDF.Includes PDF Worksheet: Comes with a comprehensive student worksheet delivered as a PDF, containing the simulation link, background, step-by-step procedures for guided investigations (Temp, pH, [S], Inhibitors in Vmax mode), data tables, and analysis prompts.

Looking for an engaging, ready-to-use resource that makes teaching reaction kinetics interactive and easy to understand? This comprehensive simulation and worksheet package is designed to captivate students, enhance comprehension, and simplify your lesson preparation. What is Included? Link to an Interactive Simulation: Allow students to visually explore the chemical reaction between calcium carbonate (CaCO₃) and hydrochloric acid (HCl). Students manipulate variables such as temperature, concentration, and surface area to observe real-time changes in reaction rates. Link to YouTube videos: demonstrating how to use the simulation to complete the activities on the worksheet, demonstrating how to use the simulation to complete the activities on the worksheet. Detailed Worksheets: Accompanying differentiated worksheets guide students step-by-step through identifying variables, conducting multiple trials, and collecting and processing data for analysis. Data Analysis Guide: Clear instructions to help students analyze results, calculate mean results and standard deviations (differentiated), and understand the implications of their findings. Pre-prepared templates: Results tables that can be opened in Google Sheets or Microsoft Excel, etc. For use with both the "Standard Analysis" and the “Advanced Analysis” versions of the task. Why Teachers Love This Resource: ✔️ Engaging and Visual: Helps students grasp complex concepts through interactive visualizations.  ✔️ Youtube tutorial: Helps students grasp how to use the controls on the simulation to generate the results they need for their analysis. ✔️ Ready-to-Use: Save hours of preparation time with clear, structured activities.  ✔️Hosted online: No need to trust a source for downloading an executable program. ✔️ Easy Integration: Perfect for individual, pair, or group work in class or remotely. Make your chemistry lessons memorable, interactive, and impactful!

Enhance your biology lessons with this engaging, browser-based Potometer Simulation! Designed for IBDP Biology, A-Level, and AP Biology students, this program provides a hands-on virtual lab experience, allowing students to investigate the effects of environmental factors on the rate of transpiration. Key Features: Data Collection & Analysis – Students can record multiple trials, calculate averages, and analyze trends to strengthen their understanding of experimental design. Dynamic Visual Representations – The program includes interactive sliders and animated visuals for thermometers, fans, lamps, clouds, and leaves, creating an intuitive and engaging experience. Built-in Results Table & CSV Export – Automatically generates a results table with five trials per value of the independent variable. Students can export data as CSV files for further analysis in spreadsheets or graphing tools. Self-Paced Learning & Inquiry-Based Teaching – Encourages students to make predictions, test hypotheses, and interpret scientific data in a student-driven learning environment. No Software Installation Required – 100% web-based. Works on any device with a modern browser, making it perfect for in-class activities, online learning, and homework assignments. How Educators Can Use This Simulation: In-Class Demonstrations: Use the simulation to showcase transpiration concepts in an interactive manner on a projector or screen share. Independent Student Investigations: Assign customized inquiry-based experiments, allowing students to explore how plants respond to different environmental conditions. Data Handling & Graphing Activities: Teach students how to process real experimental data, calculate standard deviation, and create scientific graphs with error bars. Who is this for? Biology Teachers – Use this as an interactive tool to make lessons more engaging and data-driven. High School & Pre-University Students – Ideal for IBDP, A-Level, AP Biology, and GCSE students learning about transpiration. Homeschooling & Online Educators – A valuable virtual lab for students who do not have access to physical lab equipment. Why Choose This Simulation? Engaging & Interactive – More exciting than traditional textbooks and worksheets. Real Scientific Data Processing – Prepares students for higher-level coursework and lab report writing. 100% Digital & Browser-Based – Accessible anywhere, anytime, without installation. Designed by Educators, for Educators – Created with science teachers in mind, ensuring it aligns with curriculum standards. Give your students the power to explore transpiration like never before! Purchase now and bring interactive, data-driven learning into your biology classroom!