HS-PS1-12
Use evidence to illustrate that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.
Clarification statement: Evidence could include half-reactions, net ionic equations, and electrochemical cells to illustrate the mechanism of electron transfer.
Assessment boundary: Assessment is limited to completing and/or balancing oxidation and reduction half-reactions. Energy conversions are limited to qualitative statements
Note: this is a NYSED-specific performance expectation that is different from the Next Generation Science Standards.
Resources
Examples and discussion of resources for the learning, teaching, and assessment of HS-PS1-12.
This section could be expanded upon. You can help out by adding to this section.
Assessment
What assessment of HS-PS1-12 might look like on a NY state exam.
This section could be expanded upon. You can help out by adding to this section.
NGSS Dimensions
Performance expectation HS-PS1-12 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
- Engaging in Argument from Evidence
- Evaluate the claims, evidence, and reasoning behind currently accepted explanations or solutions to determine the merits of arguments.
- PS1.B: Chemical Reactions
- Oxidation-reduction reactions are the prevailing source of power for many of today's modern conveniences.
- Energy and Matter
- The total amount of energy and matter in closed systems is conserved.
- Changes of energy and matter in a system can be described in terms of energy and matter flows into, out of, and within that system