Topic 5 Lesson 4: Glacial and Wave Erosion Quiz

Which factor causes glacial movement downhill?

• wind

• oceans

• gravity

• snow

People travel from all over the world to see more than 30 glaciers at Glacier National Park in Alaska.

Evidence of glacial action can be observed all over the park. Which of these are ways that glaciers can change Earth's surface? Choose all that apply.

• deposition

• plucking

• physical weathering

• abrasion

• longshore drift

Glaciers are formed by snow falling from the atmosphere on a place such as Alaska, where it does not melt. More and more snow falls and becomes compacted over a period of time to make a glacier. A glacier that moves seven miles per year is considered a very rapidly-moving glacier. Different parts of a glacier may move along at different rates of speed. How do Earth's spheres interact when a glacier moves across its surface? Which THREE spheres and interactions below are correct. (Choose 3)

• Atmosphere - wind blowing snow onto the glacier

• Hydrosphere - melting of the glacier forming rivers and lakes

• Biosphere - animals living on the glacier

• Lithosphere - glacier carving out valleys and shaping the landscape

Emily mixes cornstarch with water on top of pebbles in a pan to build a model of a glacier. She places the pan on a textbook at a tilt. Next, she observes as the glacier with pebbles moves slowly and deposits till at the bottom of the pan. What does the glacial till form at the bottom of the pan?

• terminal moraine

• kettle

• lateral moraine

• horn

Sal visits the beach and observes many different landforms. He recently learned they formed by either ocean wave erosion or deposition. Use the graphic organizer to sort these landforms in the word bank into ones that are formed by deposition or by erosion.

Groups:

(a) Wave Erosion

,

(b) Wave Deposition

• sea arch

• barrier island

• sea cave

• sea stack

• sand bar

The beach is a place where a lot of erosion happens. Waves and wind are constantly moving sand from place to place. Which of these landforms could protect communities living near beaches during a hurricane that caused big waves to hit the coast?

• barrier islands

• sea stacks

• longshore drift

• sea arch