lesson 1
TRANSCRIPT
Cycles in Ecosystems
What is the Water Cycle
What is the Water CycleWhat is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the Water Cycle
• Evaporation: Changing of liquid into gas
What is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the Water Cycle
• Evaporation: Changing of liquid into gas
• Condensation: Changing of gas into liquid
What is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the Water Cycle
• Evaporation: Changing of liquid into gas
• Condensation: Changing of gas into liquid
• Precipitation: Any form of water
What is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the Water Cycle
• Evaporation: Changing of liquid into gas
• Condensation: Changing of gas into liquid
• Precipitation: Any form of water
• Watershed: An area from which water is drained
What is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the Water Cycle
• Evaporation: Changing of liquid into gas
• Condensation: Changing of gas into liquid
• Precipitation: Any form of water
• Watershed: An area from which water is drained
• Runoff: water not absorbed into streams
What is the water cycle? The continuous
movement of
water between
Earth’s surface
and the air is
the water cycle.
All water on Earth is
recycled constantly.
groundwater
watershed precipitation
condensation
transpiration evaporation
runoff
Lesson 1 a
What is the carbon cycle
What is the carbon cycleWhat is the carbon cycle?
The carbon cycle is the continuous exchange
of carbon among living things.
CO2 in air
dissolved
CO2 in water
marine plankton
remains
rock
respiration
decomposition
photosynthesis
coal natural gas
oil
combustion
(human-made and natural)
Lesson 1 b
What is the carbon cycle
• Carbon is in every living thing
What is the carbon cycle?
The carbon cycle is the continuous exchange
of carbon among living things.
CO2 in air
dissolved
CO2 in water
marine plankton
remains
rock
respiration
decomposition
photosynthesis
coal natural gas
oil
combustion
(human-made and natural)
Lesson 1 b
What is the carbon cycle
• Carbon is in every living thing
• We take in carbon dioxide through the air
What is the carbon cycle?
The carbon cycle is the continuous exchange
of carbon among living things.
CO2 in air
dissolved
CO2 in water
marine plankton
remains
rock
respiration
decomposition
photosynthesis
coal natural gas
oil
combustion
(human-made and natural)
Lesson 1 b
What is the carbon cycle
• Carbon is in every living thing
• We take in carbon dioxide through the air
• Animals give off through respiration
What is the carbon cycle?
The carbon cycle is the continuous exchange
of carbon among living things.
CO2 in air
dissolved
CO2 in water
marine plankton
remains
rock
respiration
decomposition
photosynthesis
coal natural gas
oil
combustion
(human-made and natural)
Lesson 1 b
What is the nitrogen cycle
What is the nitrogen cycleWhat is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
What is the nitrogen cycle
• Nitrogen is part of the genetic material in all cells
What is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
What is the nitrogen cycle
• Nitrogen is part of the genetic material in all cells
• 78% of the air is nitrogen
What is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
What is the nitrogen cycle
• Nitrogen is part of the genetic material in all cells
• 78% of the air is nitrogen
• Nitrogen must be changed or fixed in order for us to use
What is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
What is the nitrogen cycle
• Nitrogen is part of the genetic material in all cells
• 78% of the air is nitrogen
• Nitrogen must be changed or fixed in order for us to use
• Nitrogen can be fixed by Volcanic act. or lightning
What is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
What is the nitrogen cycle
• Nitrogen is part of the genetic material in all cells
• 78% of the air is nitrogen
• Nitrogen must be changed or fixed in order for us to use
• Nitrogen can be fixed by Volcanic act. or lightning
• Also be fixed by types of bacteria
What is the nitrogen cycle?
The nitrogen cycle
is the continuous
trapping of nitrogen
gas into compounds
in the soil and its
return to the air.
nitrogen gas
in air (N2)
nitrogen fixation
denitrification
absorption decomposition
ammonia nitrite nitrate
Lesson 1 c
How is matter recycled
How is matter recycled
• Renewable resources
How is matter recycled
• Renewable resources
• Non-Renewable resources
How is matter recycled
• Renewable resources
• Non-Renewable resources
• Using up nitrogen in soil can kill soil
How is matter recycled
• Renewable resources
• Non-Renewable resources
• Using up nitrogen in soil can kill soil
• Compost: mixture of dead organic material that can be used as fertilizer