Glacial erosion and sediment transport are the focus of this Grade 4 Science reading organizer. Students explore how moving glaciers scrape bedrock, pull away pieces of rock, carry sediment, and leave deposits that help shape Earth's surface.

How Moving Ice Changes Land

The reading passages introduce specific processes involved in glacial erosion. Students examine how stones trapped in moving ice grind against bedrock and create long scratches called striations. They also read about plucking, when ice freezes onto pieces of rock and pulls them away as a glacier moves. These ideas help explain how glaciers both wear down rock surfaces and transport material across the landscape.

The set also follows sediment after it has been picked up by ice. Students explore how glaciers carry clay, sand, pebbles, and boulders on top of, inside, or beneath the ice. They learn how melting glaciers leave unsorted deposits called moraines, and how meltwater streams move sediment beyond the glacier's edge. The passages connect these processes with observations of rock scratches and simple models of erosion.

Reading and Evidence Skills

Each passage is paired with a main idea and supporting details graphic organizer. Students identify the central message, locate relevant evidence in the informational text, and restate the information in their own words. The activities provide practice distinguishing a passage's main idea from individual facts, while using details to explain how glacial processes work.

Students encounter science vocabulary in context, including bedrock, sediment, striations, plucking, moraine, and meltwater. They also consider how scientists use visible landforms, rock marks, observations, and models to investigate changes to Earth's surface.

What Is Included

• Printable Grade 4 Science informational reading passages about glacial erosion and sediment transport.
• Main idea and supporting details graphic organizers paired with the passages.
• Organizer answer content with a main idea and supporting details for each passage.
• Picture plans connected to the specific glacier, rock, sediment, and meltwater concepts in the readings.

Classroom Uses

Use these glacial erosion worksheets during an Earth Science unit, in a science reading center, or as independent reading and comprehension practice. They can also support discussion after students observe a model of moving ice or sediment transport. Students can use details from the passages to explain how glaciers scrape rock, move sediment, and leave evidence of their movement.

With its focus on real geological processes and text-based evidence, this resource brings science content and informational reading practice together in one structured activity.