Across
- 1. - A type of system where both matter and energy can be exchanged.
- 4. - Nonliving parts of ecosystems.
- 7. - A type of system where energy and matter cannot be exchanged.
- 8. - The type of weathering where rock is physically broken down into smaller pieces
Down
- 2. - When water, ice, wind or gravity move broken pieces of rock and sediment.
- 3. - A type of system where matter cannot be exchanged but energy can.
- 5. - Living parts of ecosystems.
- 6. - The smallest soil particle size.