What three things does soil consist of?
Minerals, weathered rocks, and humus (decaying organic matter).
What two things does humus do in the soil?
Adds nutrients and soaks up rainwater.
What is the first event that takes place when new soil forms?
Weathered rock breaks down into smaller pieces.
How is soil a habitat?
Organisms live in it.
What are the biggest differences between topsoil and subsoil?
Topsoil has more humus, so it's darker.
A cactus plant grows best in dry soil. Which soil would be best for a cactus?
Sandy.
How can people keep soil healthy and prevent soil erosion? Name two ways.
Add nutrients, farm responsibly, keep it healthy and clean, give it a season's rest.
What element is red soil rich in?
Iron.
What is humus?
Decomposing organic matter.
What if plants did not grow well in your neighborhood? What could be the problem?
Wow, you really know your stuff! / Sorry, we were looking for...
Name three types of soil.
Sandy, clay, loam, etc.
