Chemistry

What everything is made of: atoms, elements and the periodic table, molecules, solids, liquids and gases, melting and boiling, mixing and dissolving, oil and water, separating mixtures, changes that can and cannot be undone, cooking as chemistry, candles and fire.

Tests: 200 of 392 right (51.0%) · plain 73 of 126 · ★ 73 of 149 · ★★ 36 of 74 · ★★★ 18 of 43 · exam 63 of 148 · Controls: all red · Run: 2026-10-18, commit f3c23ea72

The controls, each to be below the real 200 of 392: no lesson 101 of 392 — red; questions shuffled 125 of 392 — red; key sentences removed 118 of 392 — red. The guessers: the longest option 110 of 392; the first option shown 101 of 392. The lessons sentence by sentence: the course in the corpora.

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/chemistry/