ESS - Topic 5.1 - Soil systems

Which soil type feels gritty and falls apart easily?

• Clay

• Loam

• Silt

• Sand

Which characteristics would be correctly associated with a clay rich soil?

• Good drainage, lower nutrient content and lower productivity

• Poor drainage, higher nutrient content and higher productivity

• Poor drainage, lower nutrient content and lower productivity

• Good drainage, higher nutrient content and higher productivity

In which soil horizon/layer would you expect to find humus?

• B horizon

• A horizon

• O horizon

• O and A horizon

What does the "R" layer refer to in a soil horizon?

• Organic layer

• Weather rock fragment layer

• Bedrock

What are the typical soil characteristic(s) found in the tropical rainforest?

• Basic, nutrient poor and rich in iron

• Basic, nutrient rich and poor in iron

• Acidic, nutrient poor and rich in iron

• Acidic, nutrient rich and rich in iron

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which soil type has the largest porosity?

• Silt

• Clay

• Gravel

Identify one output of matter from the soil

• Decomposition of organic material

• Breakdown of parent material

• Uptake of minerals by plants

• Radiation of heat energy

Humus consists of ...?

• Plant and animal matter in the process of decomposition

• Mainly weathered rock from which the soil forms

• Mostly clay particles and an enrichment of iron and aluminium

• Rock particles that give soil its structure

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which soil type is the most permeable?

• Sand

• Clay

• Loam

• Silt

The amount of open space in the soil is called ...?

• Crystal structure

• Soil porosity

• Grain size

• Soil moisture