Learn on PengiAmplify Science (California) Grade 7Chapter 4: Science Seminar (Case Study: Jalisco Block)

Lesson 2: Evaluating Boundary Hypotheses

Key Idea.

Section 1

Scientific Argumentation

Key Idea

Science is a social process of argumentation. When studying complex areas like Jalisco, scientists may propose competing claims. One group might argue the block is rifting away (divergent), while another argues it is subducting (convergent).

To resolve this, scientists do not just vote; they debate using evidence. They evaluate the quality of the data to see which claim is more robust.

Section 2

Testing Claims with Evidence

Key Idea

In the case of the Jalisco Block, scientists test their claims against the geologic fingerprints. Does the earthquake depth data match a subduction zone? Does the volcanic lava chemistry match a divergent ridge?

Evaluating hypotheses involves checking for consistency. The claim that accounts for the most evidence with the fewest contradictions is accepted as the scientifically valid explanation.

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 4: Science Seminar (Case Study: Jalisco Block)

  1. Lesson 1

    Lesson 1: Analyzing the Jalisco Region

  2. Lesson 2Current

    Lesson 2: Evaluating Boundary Hypotheses

  3. Lesson 3

    Lesson 3: The Geologic Conclusion

Lesson overview

Expand to review the lesson summary and core properties.

Expand

Section 1

Scientific Argumentation

Key Idea

Science is a social process of argumentation. When studying complex areas like Jalisco, scientists may propose competing claims. One group might argue the block is rifting away (divergent), while another argues it is subducting (convergent).

To resolve this, scientists do not just vote; they debate using evidence. They evaluate the quality of the data to see which claim is more robust.

Section 2

Testing Claims with Evidence

Key Idea

In the case of the Jalisco Block, scientists test their claims against the geologic fingerprints. Does the earthquake depth data match a subduction zone? Does the volcanic lava chemistry match a divergent ridge?

Evaluating hypotheses involves checking for consistency. The claim that accounts for the most evidence with the fewest contradictions is accepted as the scientifically valid explanation.

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 4: Science Seminar (Case Study: Jalisco Block)

  1. Lesson 1

    Lesson 1: Analyzing the Jalisco Region

  2. Lesson 2Current

    Lesson 2: Evaluating Boundary Hypotheses

  3. Lesson 3

    Lesson 3: The Geologic Conclusion