Alloy Mixtures Answer Key

In this worksheet, students calculate the overall density of alloys and mixed liquids by combining total mass and total volume. Problems prompt learners to apply (D = M/V) and proportional-mixing reasoning rather than taking a simple average of component densities. Students compute densities for metal blends, layered blocks, and multi-liquid mixtures, interpreting how composition affects the final property. Several items require comparing densities to identify materials and to explain outcomes when equal masses of different metals are melted together. Learners also reason about real-world effects such as volume contraction during molecular mixing and how it changes the final density. The activity builds fluency with unit consistency, weighted averages, and percent reasoning while reinforcing density as a characteristic property.

Curriculum Matched Skills

Physical Science – Properties of Matter (mass, volume, density)

Chemistry – Alloys and Mixtures: Composition and Characteristic Properties

Mathematics – Ratios, Weighted Averages, and Proportional Reasoning

Science – Measurement, Unit Consistency, and Data Analysis

This worksheet is part of our Density collection.