Texas TEKS 6.5.G

Science6th GradeRecurring themes and concepts

The Standard

analyze and explain how factors or conditions impact stability and change in objects, organisms, and systems.

Texas Essential Knowledge and Skills for Science

Teacher's field guide

What Students Need to Do: Students identify a condition that changes and track what happens afterward. They use observations or data to explain whether an object, organism, or system remains balanced or shifts.
What Mastery Looks Like: Given a scenario or data set, students name the changed factor, compare conditions before and after, and explain the cause-and-effect link. They support the explanation with specific evidence.
Common Misconceptions: Students may think any change makes a system unstable, or that stable means nothing changes. They may confuse two events occurring together with one event causing the other.
How to Assess It: Use this exit ticket: “An aquarium warms from 22°C to 30°C, dissolved oxygen drops, and fish begin surface breathing. Explain how temperature affected the system.”

Lesson moves

Build identical index-card towers, then vary base width or added mass and record when each tower loses stability.
Discuss: How could less rainfall change a pond system, and which observations would support your explanation?
Play Factor-Effect Match with cards showing system conditions, measured changes, and evidence, then justify each matched set.
Compare temperatures on shaded and sunny school surfaces, then explain how shade affects temperature changes across the campus.

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