Inquiry-based learning has been increasingly incorporated into science curricula in many countries. However, effectively teaching and assessing students’ scientific inquiry skills remains a challenge. Interactive simulations hold significant potential to engage young learners, spark their interest in science, and simultaneously support a data-driven approach to evaluating scientific inquiry abilities.Our study combined user-centred development guidelines with psychometric standards to develop simulation-based tasks in Junior Cycle Physics in Ireland. This paper will discuss the initial stages of the process, focusing on establishing a simulation framework and designing interactive simulations.Scientific inquiry is defined as the methods by which scientists investigate the natural world and propose explanations based on evidence derived from their work. In the literature, there is variation among the frameworks used to assess scientific inquiry. However, four core categories are commonly identified: hypothesis formation (formulating predictions or hypotheses, posing questions), experimental design (designing experiments), data collection (manipulating independent variables, measuring dependent variables, controlling confounding variables), and data interpretation (interpreting data, describing findings, and drawing reasonable conclusions) (Vo & Simmie, 2024).We apply the microworld models (microFIN and microDYN) as psychometric frameworks to design the simulation tasks. The simulations were developed in a web-based application. This paper illustrates two of our proposed simulation packages, called Trolley Motion and Climate Change.The Trolley Motion provides an interactive simulation for exploring the characteristics of motion through graphical representations of a trolley's motion on inclined and horizontal planes. The simulation allows users to investigate how factors such as slope, mass, and surface conditions influence motion. Users can adjust variables, including the number of blocks (slope), the trolley's mass, and the surface friction by varying the amount of grass on the horizontal plane. The Climate Change offers an interactive simulation to visualise the impact of human activities - carbon emissions, deforestation, and renewable energy- on global warming. Key features include dynamic visualisations of the impact of carbon emissions, deforestation, and renewable energy use. Users can adjust these variables and play the simulation to observe the effects of changes on global warming. The simulation packages are expected as resources for pedagogical innovation and formative assessment in relation to science inquiry.