Free Printable WorksheetScienceGrade 8Science CurriculumMS-ESS2-3

8.109 Plate Tectonics Evidence and Boundaries Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.109 Plate Tectonics Evidence and Boundaries. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Plate Tectonics: Evidence and Boundaries - Which analysis best data on fossils, rocks and seafloor features to support continental drift and plate motions; identify boundary types and associated features? (NGSS MS‑ESS2‑3; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 8

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 8.109 Plate Tectonics Evidence and Boundaries skill assessments:

Problem 1Difficulty: Mastery

A data set shows Mesosaurus fossils on South America and Africa, matching basalt-age stripes on both sides of the South Atlantic ridge, and shallow earthquakes along the ridge. Which conclusion best combines the evidence?

AThe continents were once connected and later separated as seafloor spread at a divergent boundary

BThe continents are fixed and the fossils crossed a modern ocean

CThe ridge is a subduction trench destroying the newest crust

DThe earthquakes prove that no plates are moving

Solution & Explanation:Fossils show past continental connection, while basalt ages and ridge earthquakes show ongoing seafloor spreading that separated the continents.

Problem 2Difficulty: Mastery

A student identifies the Himalaya region as an oceanic-continental subduction zone because mountains are present. Which correction is best?

AAll mountains form only at mid-ocean ridges

BNo plate boundary can create mountains

CA trench must be present at every mountain range

DThe Himalaya region is mainly continental-continental convergence; mountains can form when buoyant continental crust thickens

Solution & Explanation:The Himalayas formed mainly from collision of two continental plates, where crust thickened and uplifted rather than forming a typical oceanic trench and volcanic arc.

Problem 3Difficulty: Mastery

An ocean plate moves from a mid-ocean ridge across an abyssal plain toward a deep trench beside an island arc. Which process sequence is most accurate?

ASubduction at the ridge, melting on the plain, then creation at the trench

BContinental collision at the ridge, no movement on the plain, then transform motion at the trench

CCreation of crust at the ridge, cooling and aging across the plain, then subduction at the trench

DWeathering at the ridge, river transport across the plain, then fossil formation at the trench

Solution & Explanation:Oceanic crust forms at ridges, cools and ages as it moves, and can be subducted at trenches.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 8 Science students. It aligns with educational standard MS-ESS2-3 (Students analyze continental drift evidence, seafloor spreading data, earthquake and volcano patterns, and boundary features to classify plate interactions and support claims.).