Transcript 1. Producers take in carbon dioxide from the air.

Big Idea
 What relationships exist between
living things and the
environment?
Cycles of Matter
Chapter 10, Section 5
Standards
S.6.5.b
Students know matter is
transferred over time from one
organism to others in the food
web and between organisms and
the physical environment.
Key Questions
What kinds of questions can you ask based on
looking at this picture?
Key Questions
What kinds of questions can you ask based on
looking at this picture?
Key Questions
What kinds of questions can you ask based on
looking at this picture?
Key Questions
 SWBAT describe the processes
that are involved in the water
cycle.
 SWBAT explain how carbon
and oxygen are recycled in
ecosystems.
 SWBAT describe the nitrogen
Nitrogen Fixation
The process of changing free nitrogen into a usable form of nitrogen.
Law of Conservation of
Energy
 Energy can be neither created
nor destroyed, but can change
form.
 For example, chemical energy
can be converted to kinetic
energy in the explosion of a stick
of dynamite.
Nitrogen Fixation
The process of changing free nitrogen into a usable form of nitrogen. Nitrogen
in the atmosphere is broken down to be used by plants in the soil.
The Water Cycle
The process of evaporation, condensation, and precipitation make up
the water cycle.
The Carbon Cycle
In ecosystems, the processes by which carbon and oxygen are recycled are linked.
Producers, consumers, and decomposers play roles in recycling carbon and oxygen.
The Carbon Cycle
1. Producers take in carbon
dioxide from the air.
The Carbon Cycle
1. Producers take in carbon
dioxide from the air.
2. The carbon is used to
make food molecules for
the plants – sugars and
starches.
The Carbon Cycle
1. Producers take in carbon
dioxide from the air.
2. The carbon is used to
make food molecules for
the plants – sugars and
starches.
3. Consumers eat plants,
taking in carbon.
The Carbon Cycle
1. Producers take in carbon
dioxide from the air.
2. The carbon is used to
make food molecules for
the plants – sugars and
starches.
3. Consumers eat plants,
taking in carbon.
4. Consumers break down
food molecules, releasing
carbon dioxide.
The Carbon Cycle
1. Producers take in carbon
dioxide from the air.
2. The carbon is used to
make food molecules for
the plants – sugars and
starches.
3. Consumers eat plants,
taking in carbon.
4. Consumers break down
food molecules, releasing
carbon dioxide.
5. Decomposers also break
down consumers and
producers to carbon
compounds.
The Oxygen Cycle
Oxygen cycles through
ecosystems, just like
carbon.
1. Producers release oxygen
as a result of
photosynthesis.
The Oxygen Cycle
Oxygen cycles through
ecosystems, just like
carbon.
•
Producers release oxygen
as a result of
photosynthesis.
•
Most organisms take in
oxygen from the air or
water and use it to carry
out their life processes.
The Human Impact
Humans affect the levels of
carbon and oxygen in the
atmosphere.
By cutting trees, there is less
oxygen and more carbon
dioxide in the
atmosphere.
Carbon dioxide is a
greenhouse gas. This
means that this can lead
to a warming of the
atmosphere.
The Nitrogen Cycle
In the nitrogen cycle, nitrogen moves from the air to the soil, into living things,
and back into the air.
The Nitrogen Cycle
Most organisms can use
nitrogen only once it has
be “fixed,” or combined
with other elements.
The Nitrogen Cycle
Most organisms can use
nitrogen only once it has
be “fixed,” or combined
with other elements.
1. Most nitrogen fixation is
performed by certain
kinds of bacteria. They
live in bumps on the roots
of certain plants like
beans, peas, alfalfa, and
peanuts.
The Nitrogen Cycle
Most organisms can use
nitrogen only once it has
be “fixed,” or combined
with other elements.
•
Most nitrogen fixation is
performed by certain
kinds of bacteria. They
live in bumps on the roots
of certain plants like
beans, peas, alfalfa, and
peanuts.
•
These plants are called
legumes.
The Nitrogen Cycle
Most organisms can use
nitrogen only once it has
be “fixed,” or combined
with other elements.
•
•
Most nitrogen fixation is
performed by certain
kinds of bacteria. They
live in bumps on the roots
of certain plants like
beans, peas, alfalfa, and
3. The relationship
peanuts.
between the
These plants are called
bacteria and the
legumes.
legumes is an
example of
mutualism.
4. Producers use
nitrogen in the
soil to build
proteins.
Key Questions
 What processes are involved in the water cycle?
Key Questions
 What processes are involved in the water cycle?
 The processes of evaporation, condensation, and
precipitation make up the water cycle.
Key Questions
 What processes are involved in the water cycle?
 The processes of evaporation, condensation, and
precipitation make up the water cycle.
 How are carbon and oxygen recycled in
ecosystems?
Key Questions
 What processes are involved in the water cycle?
 The processes of evaporation, condensation, and
precipitation make up the water cycle.
 How are carbon and oxygen recycled in
ecosystems?
 In ecosystems, the processes by which carbon and
oxygen are recycled are linked. Producers,
consumers, and decomposers play roles in
recycling carbon and oxygen.
Key Questions
 What processes are involved in the water cycle?
 The processes of evaporation, condensation, and
precipitation make up the water cycle.
 How are carbon and oxygen recycled in
ecosystems?
 In ecosystems, the processes by which carbon and
oxygen are recycled are linked. Producers,
consumers, and decomposers play roles in
recycling carbon and oxygen.
 What is the nitrogen cycle?
Key Questions
 What processes are involved in the water cycle?
 The processes of evaporation, condensation, and
precipitation make up the water cycle.
 How are carbon and oxygen recycled in
ecosystems?
 In ecosystems, the processes by which carbon and
oxygen are recycled are linked. Producers,
consumers, and decomposers play roles in
recycling carbon and oxygen.
 What is the nitrogen cycle?
 In the nitrogen cycle, nitrogen moves from the air
to the soil, into living things, and back into the air.
Homework
 Workbook 10, Section 5