Indiana Science HS-ENV1-5

ScienceGrades 9–12Environmental Science

The Standard

Evaluate, measure, and communicate biological, chemical, and physical (abiotic and biotic) factors within an ecosystem.

Indiana Academic Standards for Science (2023) · Environmental Systems

Teacher's field guide

What Students Need to Do: Students measure living organisms and nonliving conditions in an ecosystem. They sort their observations into biological, chemical, and physical measures, then use the data to explain a pattern.
What Mastery Looks Like: A student can record temperature, pH, and organism counts from two sites in a clear table. They can compare the sites using evidence without claiming the measurements prove a cause.
Common Misconceptions: Students may call pH a physical measure because they measured it in water. They may assume that fewer organisms at one site proves pollution caused the difference.
How to Assess It: Exit ticket: Pond A has pH 7, water temperature 20°C, and 12 insect larvae; Pond B has pH 5, 28°C, and 3 larvae. Label each measure as chemical, physical, or biological, then write one supported comparison and one conclusion the data cannot prove.

Lesson moves

In two marked schoolyard squares, record air temperature, test soil pH with a kit, and count plant species.
Ask, 'One plot has fewer worms and lower pH than another. What do those numbers show, and what remains unknown?'
Give pairs cards labeled pH, temperature, earthworm count, and shade; have them sort the cards and defend each choice.
Show a roadside stream photo; students mark sampling spots above and below a storm drain for pH, temperature, and insect counts.

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