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printer-friendly sample test questions
printer-friendly sample test questions

... Response addresses all parts of the question and includes only minor errors. ...
Physical and Ecological Processes
Physical and Ecological Processes

... There are two types of weathering; mechanical and chemical. Mechanical weathering is caused by ice and vegetation. When water freezes in cracks of rocks it will slowly break the rock apart. The roots of trees and plants will slowly break apart rocks also. Chemical weathering is a chemical reactio ...
Glaciers
Glaciers

... • Wind  easily  picks  up  and  carries  beach  and  desert  sand   • Wind  is  more  likely  to  cause  erosion  during  a  dry  period   • Sediments  that  wind  carries  also  weather  the  Earth’s  surface   ...
The Dust Bowl: action and reaction between
The Dust Bowl: action and reaction between

... Large wheat plantations yielded little or no crops. Degraded topsoil, coupled with desiccation and the effects of mechanised farming techniques, stripped the superficial layers of organic nutrients, and left the soil exposed to wind erosion. An estimated annual 369 million net tonnes of dust was lif ...
Consequences of lost of Biodiversity on Tropical Rainforests
Consequences of lost of Biodiversity on Tropical Rainforests

...  Decreased precipitation due to a reduced vegetation ...
Study Guide for Earth science
Study Guide for Earth science

... *Magma- hot molten rock in the mantle; its movement upward causes a stretch or pull of tectonic plates (huge plates that the Earth’s continents rest on) *Lava-hot molten rock above the surface; when lava is released it hardens. Over thousands of years, it may increase the height of the volcano formi ...
Grade 6 Curriculum Map - Bibb County School District
Grade 6 Curriculum Map - Bibb County School District

... Discuss, compare/contrast weathering, erosion and deposition S6E5f Effects of human activity on erosion S6E5i Recognize that lithospheric plates constantly move S6E5e This movement can cause major geological events on the earth’s surface. S6E5e Explain the effects of physical processes (plate t ...
5 Themes of Geography
5 Themes of Geography

... The presence of fossils only over small areas of now separate continents ...
Chapter 4 Science Study Guide
Chapter 4 Science Study Guide

... cracks in rocks. As it freezes, the water expands, causing the cracks to widen. Later the ice thaws. • Plants: A plant’s roots can force their way into small cracks. As the roots grow, they widen the cracks. ...
Chapter 9 Student Sheet
Chapter 9 Student Sheet

... B. Erosion – the wearing away of soil and rock by ___________ 1. Rill erosion – during a heavy rain, a small ____________________ forms and carries away soil, creating groove called a channel. 2. _______________ erosion – Heavy rains remove large amounts of soil and sediment from the bottom a rill c ...
Week 10
Week 10

... Draw a sketch of • Finish Reading and each boundary. 6.3 & 6.4 Notes • Project 1 ...
Weathering: breakdown of rocks into sediments The difference
Weathering: breakdown of rocks into sediments The difference

... o More resistant to weathering/erosion  size/shape after weathering will be rough & large o Less resistant  size/shape after weathering will be smooth/round & small • If all these rocks have been exposed to the same weathering agents over the same period of time, and started at the same height, ex ...
WeatheringandErosion
WeatheringandErosion

... Ice wedging • Water enters cracks in rock and freeze. • Expanding water causes rock to break ...
Geologic history - Hewlett
Geologic history - Hewlett

... 2. These sediments were then raised above water level and tilted during a tectonic event (what type of boundary?). 3. Streams & other forces of erosion carved a nearly horizontal surface across the ...
soil horizons
soil horizons

... Laterite: These soils form in hot, wet tropical areas. The large amount of precipitation carries these soils deeply. The precipitation also washes our much of the silicate material making these soils orange. These soils are organically ...
File
File

... ž- Uluru (Ayers Rock), Australia has formed due to slow erosion of a mountain range; Brilliant red glow at sunset; Surface sediment flakes away like snake shedding its skin creating caves, hollows, and ridges 3) Ice & Glaciers - When glaciers move, the force exerted by these large ice masses, cause ...
Erosion
Erosion

... Weathering is a process by which Earth’s surface is worn away by forces such as wind, rain, chemicals, and the movement of ice and flowing water. Even plants cause weathering. Plant roots and small seeds can grow into tiny cracks in rock, gradually splitting the rock apart as the roots expand. ...
Formation of Earth Materials
Formation of Earth Materials

... shaping landforms and weather. In grades 4-5 students learn how Earth materials change and how they can be used for various purposes. They learn that Earth materials include solid rocks and soil, water, and gases of the atmosphere. People use many of these materials as resources to meet their needs. ...
Hillside - CharlottesShed
Hillside - CharlottesShed

... need to help students understand that human actions create conditions that lead to erosion but it is the natural process that moves the soil and small rocks down the hill and create the ruts and mounds of materials. In this example the ruts are formed from water moving down the hill and displacing s ...
Geology Assessment Study Guide
Geology Assessment Study Guide

... ● Be able to ​ describe and locate​ the following: ○ Lower Mantle __________________________________________________________ ...
Weathering, Erosion, Deposition, and Soil Notes
Weathering, Erosion, Deposition, and Soil Notes

... Erosion has many ways of movement. Movement by wind such as hurricanes, tornadoes, and regular high speed winds; Movement by water such as by rivers, streams, tributaries, waterfalls, and ocean waves; Movement by ice such as glaciers. Glaciers leave U shaped valleys as opposed to rivers forming V sh ...
Science Feb 15
Science Feb 15

... 20. Scientists have studied convergent boundaries and the results of the collisions. Besides the fact ...
File
File

... mantle – upper mantle is solid lower mantle is magma/ convection currents ...
Constructive and Destructive Forces Notes and Activities
Constructive and Destructive Forces Notes and Activities

... sand/sediment and blasts large rocks with the abrasive particles, cutting and shaping the rock.  The intensity of wind erosion is determined by:  Sum (amount)  Speed  Slope  Surface ...
The water cycle is also affected by deforestation. Trees extract
The water cycle is also affected by deforestation. Trees extract

... The water cycle is also affected by deforestation. Trees extract groundwater through their roots and release it into the atmosphere. When part of a forest is removed, the trees no longer transpire this water, resulting in a much drier climate. Deforestation reduces the content of water in the soil a ...
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Erosion



In geomorphology and geology, erosion is the action of exogenicprocesses (such as water flow or wind) which remove soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited. Eroded sediment may be transported just a few millimetres, or for thousands of kilometres.While erosion is a natural process, human activities have increased by 10-40 times the rate at which erosion is occurring globally. Excessive (or accelerated) erosion causes both ""on-site"" and ""off-site"" problems. On-site impacts include decreases in agricultural productivity and (on natural landscapes) ecological collapse, both because of loss of the nutrient-rich upper soil layers. In some cases, the eventual end result is desertification. Off-site effects include sedimentation of waterways and eutrophication of water bodies, as well as sediment-related damage to roads and houses. Water and wind erosion are the two primary causes of land degradation; combined, they are responsible for about 84% of the global extent of degraded land, making excessive erosion one of the most significant environmental problems world-wide.Intensive agriculture, deforestation, roads, anthropogenic climate change and urban sprawl are amongst the most significant human activities in regard to their effect on stimulating erosion. However, there are many prevention and remediation practices that can curtail or limit erosion of vulnerable soils.
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