What are ways to classify soil?
What is loam?
Does subsoil have rock in it?
What is humus?
What is hydroponics?
What do earthworms eat?
What causes mudslides and landslides?
Why is soil important?
What is ceramic?
We bought some dirt in a potted plant at the plant store and a few days later, there were worms in it! Where did they come from?
Here are some questions about this topic.
Click the question to read the answer!
Ask another question about this topic!
See a Full List of Topics
© 1999–2013 BrainPOP and related companies. All rights reserved.
BrainPOP is a registered trademark of FWD Media Inc. d/b/a BrainPOP.
For the full list of trademarks referenced on this page, please see
. Your use of the site indicates your agreement to
be bound by our