Science 6 Chapter 2 Test

Match each term to the correct description.

• sand

• The largest kind of particle in soil

• sediment

• The amount of each kind of particle in a soil sample

• humus

• Layers of soil

• horizons

• Decayed organic material found in soil

• texture

• Small particles of weathered rocks and minerals

​ (a)   : the dropping of sediment and rocks in a new location

​ (b)   : a pile of rocks and soil deposited by a glacier

​ (c)   : the sediment that a stream carries

​ (d)   : an area of sediment deposited at the mouth of a river

​ (e)   : the process of wind picking up loose sediment and carrying it away

• deposition
• moraine
• load
• delta
• deflation

______ is the process of rock changing from one type to another.

• loam

• bedrock

• erosion

• the rock cycle

The moving of weathered material from one place to another is ______.

• abrasion

• frost wedging

• exfoliation

• erosion

Depositions have a layered look because ______.

• Sediments are deposited in vertical layers due to acid rain.

• Sediments are formed from volcanic activity and vary by the type of volcano that erupts over time. This forms layers.

• Sediment settles by weight. The heaviest sediment drops first, and the lightest sediment drops last, which forms layers.

Tags

NGSS.MS-ESS1-4

______ is the process of breaking down rocks.

• exfoliation

• weathering

• erosion

• frost wedging

Place each type of weathering in the correct category.

Groups:

(a) Mechanical Weathering

,

(b) Chemical Weathering

• frost heaving

• oxidation

• lichens

• acid rain

• carbonic acid

• abrasion

• pressure release

• exfoliation

Tags

NGSS.MS-ESS2-2

Rocks changing into new substances is caused by ______.

• abrasion

• mechanical weathering

• chemical weathering

• exfoliation

Whenever rocks rub against each other, ​ (a)   occurs.

• abrasion
• exfoliation
• chemical weathering
• frost action

💠 Unweathered rock that influences the soil above it is called ​ (a)   .

💠 ​ (b)   contains weathered minerals and some nutrients from humus.

• bedrock
• subsoil
• topsoil
• loam