In the Crystal Structure Chemical Bonding Laboratory Kit, students build models of cubic crystal lattice structures closest-packed arrangements. Students analyze the models to discover the total number of atoms or ions in each unit cell.
How are atoms arranged in a metallic solid and in an ionic compound? Are the arrangements of atoms random or is there a “system” to it with regular “repeating units? In this two-part lab, students will build models of the three cubic crystal lattice structures and the closest-packed arrangements using polystyrene foam spheres and wire connectors. Students then analyze the models to determine the total number of atoms or ions in each unit cell. Includes 84 2-inch spheres, 72 1-inch spheres and wire connectors along with Teacher Notes, extensive background material and reproducible student handouts.
Super Value Kit is complete for six student groups. All materials are reusable!
Correlation to Next Generation Science Standards (NGSS)
Science & Engineering Practices
Developing and using models Using mathematics and computational thinking
Disciplinary Core Ideas
MS-PS1.A: Structure and Properties of Matter HS-PS1.A: Structure and Properties of Matter
Crosscutting Concepts
Patterns Scale, proportion, and quantity Systems and system models
Performance Expectations
MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures.
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