HS-PS1-11
Plan and conduct an investigation to compare properties and behaviors of acids and bases.
Clarification statement: Examples of properties could include pH values (concentration), neutralization capability and conductivity. Observations of behaviors could include the effects on indicators, reactions with other substances, and efficacy in performing titrations.
Assessment boundary: Reactions are limited to Arrhenius and Bronsted-Lowry acid-base reactions.
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-PS1-11.
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Assessment
What assessment of HS-PS1-11 might look like on a NY state exam.
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NGSS Dimensions
Performance expectation HS-PS1-11 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
- Planning and carrying out investigations: Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements and consider limitations on the precision of the data (e.g., number of trials, cost, risk, time), and refine the design accordingly.
- Planning and carrying out investigations: Select appropriate tools to collect, record, analyze, and evaluate data.
- Chemical reactions: Acids and bases play an important role in the daily lives of humans and other organisms (e.g. agricultural applications, environmental impacts (acid rain), animal and plant physiology).
- Patterns: Different patterns may be observed at each of the scales at which a system is studied and can provide evidence for causality in explanations of phenomena.