4.2.1 Project Modeling Nuclear Reactions -

| Criterion | What the teacher looks for | |-----------|----------------------------| | | Correct number of protons/neutrons before and after; balanced nuclear equation. | | Clarity | Labels, arrows, color-coding, step-by-step sequence. | | Depth | Shows why reaction happens (e.g., neutron absorption makes nucleus unstable; fusion needs high temp). | | Creativity | Unique materials (e.g., LEGO for nucleons) or interactive digital model. | | Real-world link | Explains applications or safety concerns. |

Modeling Nuclear Reactions: [Choose one: Fission / Fusion / Decay Series] 4.2.1 project modeling nuclear reactions

| Criteria | Excellent (25 pts) | Proficient (20 pts) | Developing (15 pts) | | :--- | :--- | :--- | :--- | | | Perfect conservation of A and Z | Minor arithmetic error | Missing nucleons or charge | | Model Aesthetics & Clarity | Color-coded, labeled, easy to follow | Some labels missing | Messy, confusing layout | | Energy Calculation | Q-value correct with units | Calculation present but incorrect unit | No calculation | | Written Analysis | Explains limitations and real-world link | Describes process only | Incomplete sentences | | Criterion | What the teacher looks for