Mississippi Science CHE.9.1
The Standard
- CHE.9
- Enrichment: Students will understand the nature and properties of acids, bases, and salt solutions.
Enrichment: Analyze and interpret data to describe the properties of acids, bases, and salts.
2026 Mississippi College- and Career-Readiness Standards for Science · Acids and Bases (Enrichment)
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students read pH, indicator, and conductivity data for solutions. They use the results to describe acidic and basic behavior and compare how different salts behave in water.
What Mastery Looks Like
- A student can use a low pH reading to identify an acidic solution and a high reading to identify a basic one. They can explain why dissolved table salt conducts electricity and why a salt solution does not always have pH 7.
Common Misconceptions
- Students often assume every salt solution has pH 7 or that only acids conduct electricity. Some think a compound must be an acid if it makes water acidic, even when the compound is a salt.
How to Assess It
- Give students these readings: vinegar pH 3, milk of magnesia pH 10, table salt water pH 7, and ammonium chloride salt water pH 5. Ask them to sort the solutions by acidity and explain what the two salts show about pH.
Lesson moves
Ways to Teach It
Test vinegar, milk of magnesia, and table salt water with pH strips; record readings and sort the samples as acidic, basic, or neutral.
Ask students: Why can ammonium chloride be a salt even when its solution has pH 5?
Match pH and indicator cards to vinegar, soap solution, table salt water, and ammonium chloride solution; justify each match.
Compare washing soda and table salt package labels, then use provided pH readings to explain why the two salts behave differently in water.
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Printable CHE.9.1 Worksheet
A ready-to-print activity worksheet aligned to CHE.9.1, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- CHE.9.2
Enrichment: Analyze and interpret data to identify differences between strong and weak acids and bases (i.e., dissociation).
- CHE.9
Enrichment: Students will understand the nature and properties of acids, bases, and salt solutions.
- CHE.9.6
Enrichment: Obtain, evaluate, and communicate information about how buffers stabilize pH in acid-base reactions.
- CHE.9.3
Enrichment: Plan and conduct investigations using the pH scale to classify acid and base solutions.
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