Tuesday September 29th
In Notebook:
Today’s Learning Targets
Agenda:
1. Finish Levels of Organization Poster
2. Show off poster!
3. Start Biogeochemical Cycles
What’s a cycle?
What is your understanding of a cycle? How have
you heard it used in science and in everyday life?
Biogeochemical Cycle
bio- geo- chemical
ything that takes up space and has mass) through the biosphere
What is the Carbon Cycle?
GOAL: Draw the carbon cycle using the information given
to you.
•
Work with your assigned group to answer the questions
on your worksheet.
•
Rotate to go to each station when told to switch!
•
On the back of your worksheet draw the carbon cycle
using your answers to guide you.
•
GROUP DISCUSSION, BUT INDIVIDUAL WORK.
Station 1
Station 2
Station 4
Station 3
Station 5
8
Wednesday September 30th
In Notebook:
What is your current
understanding of the water cycle?
Today’s Learning Targets
Agenda:
1. Helpful Notes
2. Finish Carbon Cycle Stations
3. Cycle Notes
4. HEADS UP: OUTSIDE TOMORROW!
But first… helpful vocab
•
Law of Conservation of Mass – matter can be
changed from one form into another, but the total
amount of mass in universe remains constant
•
Reservoirs/Sinks - places where matter and
nutrients are stored
Finish Stations
•
Go to where you ENDED yesterday. We will rotate to the
next one as a class.
•
5 minutes at each station.
Station 1: Introduction to
Carbon Cycle
Carbon moves through these processes:
1. Photosynthesis - carbon moves from the
environment into living things
2. Respiration - carbon moves from living things back
to the atmosphere
3. Decomposition - carbon moves from dead
organisms back to the environment
4. Combustion - burning fossil fuels releases carbon
back into the atmosphere
Station 2: Ocean Carbon
Cycle
•
Additional Info:
•
Carbon can diffuse back into atmosphere as water
warms after upwelling.
•
Carbon can be brought to deep ocean by
decay/decomposition of organisms.
Station 3: Soil Carbon Cycle
ALL ON THE PINK SHEET
Station 4: Terrestrial Carbon
Cycle
•
Woody plants can sequester carbon – pull carbon
out of circulation
•
Plants take in carbon dioxide and give away oxygen.
Animals breathe in oxygen and give away carbon
dioxide. They depend on eachother!
Station 5: Atmospheric
Carbon Cycle
•
Form of carbon in atmosphere: CO2 (carbon dioxide)
and CH4 (methane gas)
Station 5: Atmospheric
Carbon Cycle
Time to draw the
carbon cycle!
Thursday October 1st
In Notebook:
No Question of the Day. Be ready
to go outside after attendance.
Today’s Learning Targets
Agenda:
1. Ecological Observations in Bunker Hills Regional Park
Friday October 2nd
In Notebook:
Define biogeochemical cycle.
What biogeochemical cycles
should you be able to label and
explain in this class?
Today’s Learning Targets
Agenda:
1. Finish drawing carbon cycle
2. Notes
3. HOMEWORK?!
Time to draw the
carbon cycle!
Water Cycle
Processes of Water Cycle
•
Evaporation - liquid water becomes a gas
•
Transpiration - liquid water evaporating off
plants
•
Condensation - water changing from gas to liquid
•
Precipitation - water falling to Earth from the
atmosphere
Processes continued…
•
Run-off - water running over the land that collects in
the oceans, lakes, or rivers
•
Infiltration - water seeping into the ground that
provides water for the soil, streams, rivers, and
oceans
•
Ground water - stored in underground caverns
and porous rock
Nitrogen
Cycle
Nitrogen Cycle
•
Nitrogen in the atmosphere is UNUSABLE
•
Some bacteria can perform nitrogen fixation - capturing nitrogen in
atmosphere and converting it into a form that is usable by plants.
Animals get nitrogen from eating plants.
•
Nitrogen is also fixed by the energy in lightning strikes
•
Nitrogen enters soil when animal urinates/dies
•
Nitrogen is taken out of soil by plants converting it into proteins or by
Denitrification - nitrogen is converted back to gas by some bacteria in
the soil
Future Nitrogen Cycle
•
Excess nitrogen can cause eutrophication - nutrient
over enrichment in water. Can cause harmful algal
blooms, massive fish-kill events, and species shift.
•
Scientists, farmers, and policymakers are encouraged
to decrease fertilizer use while safeguarding
agriculture
•
•
Use new farming methods
Maintaining wetlands
Homework for Monday:
•
Research the impact that humans have on the
carbon cycle, the water cycle, AND the nitrogen
cycle.
•
2 for each cycle …. 6 TOTAL!
•
Write them down in your notebook!