Soil Review

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.MS-LS2-3

NGSS.MS-LS2-1

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Which layer of soil are these roots growing in?

• subsoil
• topsoil

Which is NOT a layer of soil?

• bedrock
• topsoil
• undersoil
• subsoil

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Are there minerals in soil?

• Yes
• No

Humus is.....

• the dead parts of plants and animals in soil.
• A food we eat with pretzels.
• The tiny particles inside of soil
• The roots that come off of a plant and live in soil.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand
• silt
• clay
• humus

Tags

NGSS.MS-LS2-3

What is the layer of soil just below the topsoil?

• soil
• subsoil
• topsoil
• terrace farming