1. Interactions of Living Things
Pages in workbook

2. Ecosystems
Organisms interacting with one another and their physical environment
Includes both BIOTIC and ABIOTIC factors
2:48

3. Biotic Factors
All of the LIVING and ONCE LIVING things in an ecosystem

4. Abiotic Factors
All of the NON-LIVING things in an ecosystem

5. The Relationships
A Population is all of the same species living in a certain area (ex. a population of rabbits).
A Community is all of the groups of populations in an area.
An Ecosystem is the entire community plus the abiotic factors (non-living items).
Ecosystem
Community
Populations

6. Explanation of Relationships D10-11
Ecosystem -Everything in the area (living and non-living)
Community All of the LIVING things in the area (biotic factors)
Population Groups of the same species living in an area
Individual – single living thing

7. Another representation (draw this in your notes)
Ecosystem
1:13
We actually draw one of these on a quarter piece of pizza cardboard
Community
Population
2:19
Individual

8. Ecosystems Size: Can be as large as a desert or as small as a puddle!
Changes:
Caused by NATURE (lightning/fire, earthquakes, storms, etc.) It can come back and start to grow again on its own after time.
Caused by HUMANS (logging, farming, construction)

9. The Sun: Life’s Energy Supply
SUN (light, infrared rays, etc.) = ENERGY
Almost all life depends on the SUN to survive. 
All plants need the sun for photosynthesis.

10. Photosynthesis D16-17 With sun’s energy: carbon dioxide + water oxygen
glucose (food)
Plants’ food stores the energy

11. Producers/Consumers D18-19
PRODUCER - Anything that makes its own food through photosynthesis
CONSUMER – Anything that gets its energy by eating other organisms

12. Types of Consumers (draw the graphic organizer
Herbivores
Cow, deer, rabbits
Carnivores
Eats only meat
Omnivores
Eats plants and meat
Decomposers
Feeds on wastes and dead, decaying things
Rabbits
Cows
Wolves
fungi
Decomposer Clip – 0:56 H,C,O Clip 0:59 – Click on Movie Icon
bears
Snakes
bears
humans

13. Food Chains/Webs
Man puts his finger in bear POOP! Sorry…. “scat” 

14. Food Chains/Webs Food Chain Food Web – overlapping food chains
Flow of energy from one organism directly to the next
Must start with a producer
Arrows move from producer UP the chain (Think from here into the mouth of here…)
Food Web – overlapping food chains

15. Food Chains/Webs As you go up a food chain, energy is lost.
Use after Activity on D26-27

16. Ex. Owl (predator) and mouse (prey)
Predator/Prey D20-22
Predator – organism that hunts and eats other organisms 
Prey – organism that is hunted and eaten
Ex. Owl (predator) and mouse (prey)

17. Symbiotic Relationship
One in which two different species live together and interact closely over a long period of time
Parasitism
Parasite – organism that lives off of or feeds upon (and usually harms) another organism
Host – organism that is fed upon and harmed (usually doesn’t die though)
Ex. Flea (parasite) and dog (host)

18. Symbiotic Relationship
2. Commensalism
One benefits but other is unharmed
Ex. Camouflage (spider on a flower)
Ex. Egrets eat insects wildebeests have stirred up 

19. Symbiosis D20-22 3. Mutualism Both sides benefit
Ex. Pollination – bees/birds and flowers
symbiosis
2:37

20. Carbon Dioxide/Oxygen Cycle D34-35
Plants use Carbon Dioxide and give off Oxygen
Humans use Oxygen and give off Carbon Dioxide

21. The Water Cycle D36-37
Evaporation – heated liquid changing to water vapor
Condensation – water vapor changing to a liquid
Precipitation – rain, snow, sleet, hail, etc.
Transpiration – water released through leaves
water cycle
2:39

22. Earth’s Land Biomes D48-51 Tundra 2:07 Taiga 1:57
Arctic grassland with frozen soil all year
Polar bears, foxes, lichens
Taiga 1:57
Coniferous forests
Bears, moose, evergreen trees
Deciduous Forest 1:40
Large leafed trees that lose leaves in winter
Deer, squirrels, maple trees

23. Earth’s Land Biomes D48-51 Tropical Rain Forest 1:52 Grassland 2:17
Lush, green forests with heavy rainfall warm climate
Toucans, vines, monkeys
Grassland 2:17
wide open fields of grass
Rabbits, prairie dogs, zebras
Desert 2:07
Very DRY (can be hot or cold)
Cactus, horned lizards

24. Biodiversity D58-60
Biodiversity – variety of species in an ecosystem (Part 2, 3, 4) All 4 parts about 14 minutes
Depends on:
1. Size (how large of an area it is)
2. terrain (type of land and landforms)
3. latitude (distance from the equator)
1= the scientific study of biodiversity 2= speed of extinction (very short clip) 3= what’s causing the problem? 4= why more is better

25. Biodiversity Challenges D61-62
Extinct – No longer living
Ex. Dodo birds, Dinosaurs
Endangered – in danger of becoming extinct 
Ex. manatee, rhinos, spider monkeys
Threatened – in danger of becoming endangered
Ex. baboon, leopard, grizzly bears
1:15

26. Citations
Biomes: Our Earth's Major Life Zones. United Learning (1998). Retrieved February 28, 2006, from unitedstreaming:
Biologically Speaking: Ecosystems and the Cycles of Nature. AIMS Multimedia (2002). Retrieved February 28, 2006, from unitedstreaming:
More is Better: The Biodiversity Story. United Learning (1995). Retrieved February 28, 2006, from unitedstreaming:
Food Chains and Webs. United Learning (1998). Retrieved February 28, 2006, from unitedstreaming:
Mammals of North America: Predators and Prey. AIMS Multimedia (2004). Retrieved February 28, 2006, from unitedstreaming:
Vulnerable, Threatened, Endangered, Extinct. AIMS Multimedia (1992). Retrieved February 28, 2006, from unitedstreaming:
Learning About Water (Second Edition). AIMS Multimedia (2004). Retrieved February 28, 2006, from unitedstreaming: