Lab bench · evidence-first exploration
Build a question from the periodic table.
One element opens a reference substance. This preview has five two-element compound systems, and every record-backed next click is highlighted.
Checking record-backed paths in this preview.
Checking what is actually available…Blue-corner tiles can start a record-backed pair. Every element still opens its identity page.
Category color is a navigation aid, not a claim about phase behavior. Use arrow keys to move through the grid and Enter or Space to select.
Four supported starting points
Try a bounded question
Each path exposes its model, conditions, and limitations.