The Carbon Cycle
The Carbon Cycle
The Carbon Cycle
1
2
3
4
9
8
10
7
6
5
11
The Carbon Cycle
Label the following processes
carbon cycle animation
epa carbon cycle "movie"
trapping carbon
carbon cycle game
processes that add more carbon to the atmosphere
Carbon Sources
processes that take carbon out of the atmosphere
Carbon Sinks
Al Gore Global Warming Explained
Global Warming or "None Like it Hot"
Nitrogen Cycle
Bacteria do it all (lightning helps a little)
Nitrogen Fixation: conversion of nitrogen gas (N2(g)) to a useable
dissolved form. Done by nitrogen fixing bacteria and happens in root
nodules of legumes. show powerpoint now
Denitrification: nitrates in soil are converted back by denitrifying
bacteria to atmospheric nitrogen gas (N2(g))
Nitrification: interconversion between nitrates (NO3-(aq)) and nitrites
(NO2-(aq)) by nitrifying bacteria. Ammonium ions (NH4+(aq)) may also
be a starting point.
Ammonification: conversion of nitrogen in dead stuff or from
atmospheric form (N2(g)) to ammonia (NH4+(aq)). Done by ammonifying
bacteria and nitrogen fixing bacteria in soil.
The Nitrogen Cycle in an Aquatic System
1. atmospheric nitrogen, formula N2(g)
NF
2. denitrification
3. runoff
ed
v
l
o
iss
4. consuming
denitrify ing
bacteria
d
5. decomposers
6. consumers
en
g
o
nitr
ke
a
t
up
producers
7. dying & animal wastes
8. nitrates, formula NO3-(aq)
N
9. cyannobacteria (A.K.A. blue/green algae)
NH4+
nitrifying
bacteria
The Nitrogen Cycle in an Aquatic System
l
1. atmospheric nitrogen, formula N2(g)
NF
2. denitrification
3. runoff
3
ed
v
l
o
iss
4. consuming
denitrify ing
bacteria
d
5. decomposers
6. consumers
en
g
o
nitr
2
9
ke
a
t
up
producers
6
4
7. dying & animal wastes
8. nitrates, formula NO3-(aq)
N
8
9. cyannobacteria (A.K.A. blue/green algae)
7
5
NH4+
nitrifying
bacteria
Greenhouse Effect & Nitrogen Cycle
Grade:
Subject:
Date:
«grade»
Science 20F
«date»
‐2 The greenhouse effect is a good thing.
Yes No ‐1 Which of the following greenhouse gases is most effective at warming our planet's atmosphere?
A water vapour, formula H2O(g)
B carbon dioxide, formula CO2(g)
C methane, formula CH4(g)
D oxygen, formula O2(g)
The Nitrogen Cycle
1
By what process does nitrogen gas enter the soil?
A
B
C
D
nitrification
denitrification
nitrogen fixing
ammonification
leaching
denitrification nitrogen fixation
NF
DN
ammonification
AM
The Nitrogen Cycle
2
Which processes are represented by numbers 3 and 4, respectively?
D AM & DN
B NF & AM
A NF & DN
C
both processes represent leaching
1.
4.
2.
3.
5. Brain pop movies
Attachments
nitrogen fixers.ppt