HS-PS2-6
The standard
Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.
Next Generation Science Standards
What this standard means
Students need to explain how a material’s tiny structure affects what it does. They should connect particles, bonds, attractions, repulsions, shape, and chain length to properties like conductivity, flexibility, strength, or drug fit. They also need to communicate this clearly using words, diagrams, or labeled models.
Mastery looks like using a provided molecular structure to make a claim about a material’s function, then backing it with evidence from that structure. Students often get stuck describing the visible material only, like “metal is shiny,” instead of linking function to molecular features and forces.
Ways to teach it
- Give students ball-and-stick kits and have them compare a metal lattice, polymer chain, and drug-shaped molecule using labeled property cards.
- Ask students to write: How does the shape or bonding in this material help it do its job?
- Show one provided molecular structure and ask students to circle two features that affect the material’s function.
- Bring in copper wire, plastic wrap, and a pill bottle label, then match each item to a simple molecular structure explanation.
Plan a lesson for HS-PS2-6
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