Soil, Weathering, and Erosion

Humus is bad for soil.

• True
• False

Tags

NGSS.MS-LS2-1

Which layer of soil is on bottom?

• Topsoil
• Sand
• Bedrock

The top layer of soil is called ________.

• bedrock
• topsoil
• subsoil
• grass

This is found in the topsoil and is made of decaying plants and animals. 

• dirt
• water
• humus
• subsoil

Tags

NGSS.5-LS2-1

This type of soil is sticky when wet and hard when dry. 

• clay
• silt
• sand
• gravel

This type of soil is best for plant growth. 

• rock
• sand
• loam
• clay

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

This type of soil is made of tiny pieces of rock. 

• sand
• clay
• humus
• loam

The four types of soil are _____. 

• humus, gravel, pebbles, sand
• sand, silt, clay, loam
• sand, rock, pebbles, granite
• sand, clay, bedrock, topsoil

Loam is a mixture of clay, silt, and sand. 

• True
• False

If soil particles are large, then 

• more water is retained
• less water is retained

Tags

NGSS.MS-ESS2-4