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 = The exchange of matter (anything that takes up space and has mass) through the biosphere (atmosphere, land, and water)

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 5 Station 4 Station 2 Station 3

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: CO 2 (carbon dioxide) and CH 4 (methane gas)

Station 5: Atmospheric Carbon Cycle

Time to draw the carbon cycle!

Thursday October 1 st

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 2 nd

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

plants - liquid water evaporating off •

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!