EcoColumn

What prevents your fish from dying due to ammonia in its own waste?

• Nitrifying bacteria turns ammonia into nitrate

• Bacteria used dissolved oxygen to deactivate the ammonia

• Nitrogen-fixing bacteria turns ammonia into nitrites

• Nitrogen-fixing bacteria turns nitrogen gas into ammonia

Tags

NGSS.MS-LS2-3

Which of the following would NOT lower pH in the aquatic chamber?

• Cellular respiration by the fish

• Decomposition plants

• Healthy aquatic plants

• Dead fish

What are the flaps In the aquatic chamber used for?

• feeding hole

• air flow

• decoration, design

• Ms. Huynh wanted us to make one

Where does nitrogen fixation occur?

• around the roots of the plants

• in the air

• in the leaves of the plants

• among the dead leaves

Tags

NGSS.MS-LS2-3

What does nitrogen from the air turn into?

• nitrate

• nitrite

• ammonia

• nitrogen gas

What will happen when fish excrete waste?

• the fish will die

• water levels will deplete

• nitrate levels will increase over time

• nitrate levels will decrease over time

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What does nitrifying bacteria turn fish waste into?

• ammonia

• nitrate

• nitrite

• nitrogen gas

Ammonium from fish waste turns into what?

• nitrates and then nitrites

• nitrites and then nitrates

• ammonia

• nitrogen gas

Tags

NGSS.MS-LS2-3

Do the PH & dissolved oxygen levels change over time?

• yes

• no

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Plants may spike in growth rate if...

• the terrestrial chamber is overwatered

• there is not enough sunlight

• dead fish are buried in the terrestrial chamber

• more seeds are planted

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

NGSS.MS-LS1-6