Observed patterns in nature guide organization and classification and prompt questions about relationships and causes underlying them.

• Patterns

• Cause & Effect

• Energy & Matter

• Stability & Change

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Tracking energy and matter flows, into, out of, and within systems helps one understand their system's behavior.

• Energy & Matter

• Scale, Proportion, and Quantity

• Structure & Function

• Systems & System Models

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Events have causes, sometimes simple, sometimes multifaceted. Deciphering causal relationships, and the mechanisms by which they are mediated, is a major activity of science and engineering.

• Cause & Effect

• Patterns

• Cause & Effect

• Energy & Matter

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

The way an object is shaped or structured determines many of its properties and functions.

• Structure & Function

• Scale, Proportion, and Quantity

• Systems & System Models

• Cause & Effect

Tags

NGSS.MS-ETS1-1

In considering phenomena, it is critical to recognize what is relevant at different size, time, and energy scales, and to recognize proportional relationships between different quantities as scales change.

• Scale, Proportion, and Quantity

• Patterns

• Energy & Matter

• Cause & Effect

For both designed and natural systems, conditions that affect stability and factors that control rates of change are critical elements to consider and understand.

• Stability & Change

• Structure & Function

• Systems & System Models

• Energy & Matter

Tags

NGSS.MS-ETS1-4

NGSS.MS-LS2-4

A system is an organized group of related objects or components; models can be used for understanding and predicting the behavior of systems.

• Systems & System Models

• Patterns

• Scale, Proportion, and Quantity

• Structure & Function

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3