Transcript 3-3 Cycles of Matter

3-3 Cycles of Matter
Page 74
A. Recycling in the Biosphere
• 1. Matter is recycled between and within
ecosystems.
A. Recycling in the Biosphere
• 2. Biogeochemical Cycles- Process by which
elements, chemical compounds, and other
forms of matter are passed from one organism
to another, and from one part of the
biosphere to another.
B. The Water Cycle
• 1. Water moves between ocean, atmosphere
and land.
• 2. H2O molecules enter the atmosphere as
water vapor (gas) when they evaporate from
the ocean or other bodies of water.
– Evaporation- Water changes from liquid to gas.
• 3. Water can evaporate from the leaves of
plants also, a process called transpiration.
Can you organize these in the correct
order?
WORD BANK:
Condensation,
Precipitation,
Surface
Runoff, and
Evaporation
video
C. Nutrient Cycles
• 1. Nutrients- chemical substances an organism
needs to stay alive.
• 2. Every living organism needs nutrients to
carry out life functions.
C. Nutrient Cycles
• 3. The Carbon Cycle
• The carbon cycle moves carbon from the
atmosphere, through the food web, and
returns to the atmosphere.
• Carbon is emitted by the burning of fossil
fuels.
• Some carbon is stored for long periods of
time in areas called carbon sinks.
video
C. Nutrient Cycles
• 4. The Nitrogen Cycle
• The nitrogen cycle mostly takes place
underground.
• Some bacteria convert gaseous nitrogen into
ammonia through a process called nitrogen
fixation.
• Some nitrogen-fixing bacteria live in nodules
on the roots of plants; others live freely in the
soil.
C. Nutrient Cycles
• 4. The Nitrogen Cycle
• Nitrifying bacteria change the ammonium
into nitrate.
• Nitrogen moves through the food web and
returns to the soil during decomposition.
video
C. Nutrient Cycles
• 5. The Phosphorus Cycle
• The phosphorus cycle takes place at and
below ground level.
• Phosphate is released by the weathering
of rocks.
• Phosphorus moves through the food web
and returns to the soil during
decomposition.
C. Nutrient Cycles
• 5. The Phosphorous Cycle
• Phosphorus leaches into groundwater from
the soil and is locked in sediments.
• Both mining and agriculture add phosphorus
into the environment.
video
D. Nutrient Limitation
• 6. Limiting Nutrient- substance that is scarce
or cycles slowly.
• (This is why fertilizer is
used! Contains Nitrogen,
Phosphate, Potassium
to boost
production!)
Exit slip
Carbon
• Fact 1
• Fact 2
Nitrogen
• Fact 1
• Fact 2
Phosphorous
• Fact 1
• Fact 2
Draw a cycle!
• 1- Carbon P.77
• 2- Nitrogen P.78
• 3- Water P.75