SOIL

What is the main purpose of microbes in the soil?

• to release the nutrients in rocks
• to cause disease
• to feed animals

Tags

NGSS.MS-LS2-1

Which describes the soil layers in order from the surface?

• top soil, bedrock, horizon C, subsoil
• top soil, subsoil, horizon C, bedrock
• top soil, horizon C, subsoil, bedrock

Which of the following is NOT one of the three layers of soil?

• topsoil
• undersoil
• subsoil
• bedrock

Tags

NGSS.MS-ESS2-1

Wind blowing dirt and sand through the air is an example of...

• weathering 
• erosion

Tags

NGSS.MS-ESS2-2

Soil is made of

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

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

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-LS2-4

Which of the following is NOT one of the three types of soil?

• clay
• sand
• silt
• mud

Tags

NGSS.MS-ESS2-1

Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?

• clay
• sand
• silt
• humus

Tags

NGSS.5-PS1-3

Select the definition of soil

• layers of soil with distinct physical properties in a soil profile

• mixture of weathered rock, organic material, water, and air

• decomposed organic matter

• vertical section showing the soil horizons

This type of soil is carried by water and left as sediment. 

• bedrock
• loam
• silt
• clay

Tags

NGSS.MS-ESS2-4