Waste, Composting, and Water Treatment

Green materials are high in _________ and brown materials are high in ___________.

• carbon, nitrogen
• nitrogen, carbon
• carbon, oxygen
• oxygen, carbon

Moisture helps the compost pile to decompose

• slower
• faster

Tags

NGSS.MS-LS2-3

Which organism help to breakdown or decompose waste and dead organisms?

• The organisms and waste breakdown on their own.
• Only fungi
• Only bacteria
• Fungi, bacteria and other decoposers such as worms and beetles.

Tags

NGSS.MS-LS2-3

What is the role of decomposition in the environment?

• Decomposition isn't really that important.  It simply makes waste and dead organisms smaller so they don't take up as much room.
• When organisms are decomposed, the nutrients such as carbon and nitrogen are returned to the soil.
• Composition just makes new soil.
• When organisms decompose they return the food they ate to the environment.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

The graph shows temperatures in a composting bin.
 
During which days is the most composting happening? 

• May 8 to May 9
• May 9 to May 15
• May 30 to June 2
• June 2 to June 6

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-PS3-4

Composting occurs

• within hours
• within a few days
• over an extended period of time
• only when you turn the pile

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-ESS2-1

An organism that consumes dead or nonliving things and helps break them down into parts of soil.

• producer

• consumer

• decomposer

• activator

Tags

NGSS.MS-LS2-3

What is compost?

• I don't know
• food waste that has been broken down in to soil/fertilizer
• stuff that goes in a landfill
• stuff you can recycle like plastic or glass

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

____________ are all microscopic and contribute heat and decomposition to the compost.

• Bacteria

• Protozoa

• Fungus

• Actinomycetes

____________ help break down the strongest materials, like wood, by using enzymes to digest polymers like cellulose.

• Bacteria

• Protozoa

• Fungus

• Actinomycetes