1. February 8, 2010
What is the difference between a detritivore and a decomposer? What’s an example of each?
What happens to the amount of energy and biomass as you go up in trophic level? Why?

2. Plankton
Microscopic World
Daphnia

3. Q: How do nutrients get cycled in the biosphere?
Biogeochemical cycles:
“bio”= living
“geo” = geological (earth) processes
chemical

6. DID YOU KNOW? Water is the ONLY substance
found on earth NATURALLY in 3 forms (solid, liquid, & gas)!
People can only live a few days without water… most likely, less than 1 week!

7. ~20% of the fresh water on earth = our great lakes
DID YOU KNOW?
~60% of your body = water
~70% of the earth = water
~20% of the fresh water on earth = our great lakes

8. The average depth of the ocean = several THOUSAND FEET!
DID YOU KNOW?
The average depth of the ocean = several THOUSAND FEET!
(1 mile = 5280 feet)
Several BILLION GALLONS of water is sitting on shelves in stores or our homes!

9. ~2% of the earth’s water is suitable to drink
DID YOU KNOW?
~2% of the earth’s water is suitable to drink
It is possible for you to drink water that was part of the dinosaur era.
WATER IS CONSTANTLY RECYCLED! THE AMOUNT OF WATER ON EARTH DOES NOT CHANGE!!!!

10. DID YOU KNOW? The average person uses 100 gallons a day.
2-7 gallons per flush
15-25 gallons per shower
9 -12 gallons to run a dishwasher

11. Water, Nitrogen, & Carbon Cycles
lightning/precipitation burning wood
precipitation food chain
bacteria/plants waste
evaporation decomposing (dead things)
seepage denitrifying bacteria
root uptake fertilizer
condensation photosynthesis
transpiration
Draw ONE picture that shows ALL the cycles.
Arrows different colors, 1 color per cycle
LABEL YOUR ARROWS!

12. 3 Main Cycles: Water, Carbon, & Nitrogen