The “States of Matter and Phase Changes” test is an experiment-linked assessment designed for lower secondary chemistry and CLIL classrooms. It is based on hands-on classroom experiments involving heating and cooling water and analyzing temperature changes over time.

Students work with real measurement data, create temperature–time graphs and explain phase changes using the particle model. The test emphasizes scientific reasoning, data interpretation and conceptual understanding rather than memorization.

A clear task structure and a detailed 100-point marking scheme ensure transparent assessment in bilingual learning environments.