Soil

What is the weathered rock fragments that cover most of Earth's surface?

• regolith

• humus

• lava

• bedrock

Tags

NGSS.MS-ESS2-2

Where does most organic matter in soil come from?

• lava

• animals

• plants

• rocks

Tags

NGSS.MS-LS1-6

Where do you expect to see bedrock?

• O horizon

• A horizon

• B horizon

• C horizon

The particle size determines soil:

• mass

• texture

• hardness

• usefulness

Which soil particle is the smallest and has a smooth texture?

• clay

• sand

• silt

Which soil particle is medium sized, feels like flour, and is found near water due to being deposited by water erosion?

• clay

• silt

• sand

Which soil particle is the largest, feels gritty, and does not hold water well?

• clay

• silt

• sand

What is the tool you use to figure out what type of soil you have? (it involves finding where your percentages of clay, silt, and sand intersect)

• food webb

• energy pyramid

• soil profile

• soil pyramid

Where do we find topsoil?

• O horizon

• A horizon

• B horizon

• C horizon

What makes up the O horizon?

• humus

• bedrock

• topsoil

• subsoil