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How Long at Icefield Trail?

Compare mountain-trail records to explain why some Earth changes happen quickly while others take thousands or millions of years.

Grade 2ScienceInteractive · Printable

Aligned to2-ESS1-1

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What’s included

Single worksheet
Auto-graded online
1 NGSS standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 2
Subject: Science
Question types: Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students compare time records to identify quick and very slow Earth changes.
Students distinguish the amount of land changed from the time a change takes.
Students support a claim about Earth changes using recorded time clues.

How to use

Read the trail passage and tables together. Have students mark time clues, answer the questions, and use two records to explain their final claim.

Curriculum

NGSS standard covered

2-ESS1-1

Use information to show that some Earth events happen quickly and others happen very slowly.

Preview

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Name Date

How Long at Icefield Trail?

Use trail records to compare the time taken by Earth changes.

Read the Trail Records

Read the passage and table. Choose one answer unless the question tells you to sort or select.

A Trail Above the Ice

Icefield Trail crosses a mountain slope above a wide valley. A glacier fills part of the valley. A glacier is a thick mass of ice on land. As the ice moves, rocks carried by the ice can scrape the ground beneath it.

A science team studies changes near the trail. Cameras record from safe places away from sliding snow and soil. The team also uses rock clues and land measurements to learn about changes that began long before people kept records.

The table lists four changes. The first two times came from videos. The last two are estimates based on land and rock clues. Those records describe a valley being carved by moving ice and a mountain being worn lower as water, ice, and wind carried pieces away.

Table 1. Changes Near Icefield Trail
Recorded change | Time taken
A large mass of snow slid down the slope and stopped. | 45 seconds
Wet soil slid down a bank and stopped. | 9 minutes
Moving glacier ice carved the wide valley. | Thousands of years
The mountain was worn much lower. | Millions of years

Which recorded change took the shortest time?