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Free Science Resource Sets — 8th Grade


8th Grade Science Standard: 8-MS-ESS2-2

Performance Expectation (PE):

Construct an explanation based on evidence for how geoscience processes have changed Earth’s surface at varying time and spatial scales.

Disciplinary Core Ideas (DCI):

Earth’s Materials and Systems:

The planet’s systems interact over scales that range from microscopic to global in size. These interactions have shaped Earth’s history and will determine its future.

Animals are able to use their perceptions and memories to guide their actions.

The Roles of Water in Earth’s Surface Processes:

Water’s movements—both on the land and underground—cause weathering and erosion, which change the land’s surface features and create underground formations.

PHENOMENON-BASED INSTRUCTIONAL TASK:

Wandering Water

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FORMATIVE ASSESSMENT TASK:

How Water Shapes the Earth’s Surface: Sand From Mountains

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PATTERN ANALYSIS OF STUDENT THINKING (PAST):

How Water Shapes the Earth’s Surface: Sand From Mountains

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8th Grade Science Standard: 8-MS-ESS2-3

Performance Expectation (PE):

Analyze and interpret data on the distribution of fossils and rocks, continental shapes, and sea floor structures to provide evidence of the past plate motions.

Disciplinary Core Ideas (DCI):

  • The History of Planet Earth: Tectonic processes continually generate new ocean sea floor at ridges and destroy old sea floor at trenches.
  • Plate Tectonics and Large-Scale System Interactions: Maps of ancient land and water patterns, based on investigations of rocks and fossils, make clear how Earth’s plates have moved great distances, collided, and spread apart.

PHENOMENON-BASED INSTRUCTIONAL TASK:

Puzzling about the Past

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FORMATIVE ASSESSMENT TASK:

Evidence of the Past

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PATTERN ANALYSIS OF STUDENT THINKING (PAST):

Currently not available

8th Grade Science Standard: MS-PS1-5

Performance Expectation (PE):

Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

Disciplinary Core Ideas (DCI):

Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants. The total number of each type of atom is conserved, and thus the mass does not change.

PHENOMENON-BASED INSTRUCTIONAL TASK:

How Many Atoms?

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FORMATIVE ASSESSMENT TASK:

Chemical Reactions: How Many Atoms?

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PATTERN ANALYSIS OF STUDENT THINKING (PAST):

Chemical Reactions: How Many Atoms?

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