1. Unit 2: Matter and energy in ecosystems and organisms
Page 17

2. October 31, 2017 – Happy Halloween!
Take out last night’s HW: 9 flashcards (Unit 2, Lesson 1)
You will have no homework tonight!
Do Now: How do you know if something is living?
* All tests needs to be made up

3. Read about ecosystems, abiotic and biotic factors

4. Notes on page 18 Title = lesson 1
Ecosystems = are made up of living and non-living (environmental factors) parts in an area
Biotic Factors = living or once living parts within an ecosystem (BIO = LIFE)
Abiotic Factors = non-living parts within an ecosystem (A=NOT, BIO= LIFE)

5. Construct a t-chart beneath notes
Abiotic
Biotic
Water
Animals
Air
Plants
Minerals/Nutrients
Bacteria
Temperature/Climate
Dead Organisms
(Decaying in Soil)
Sunlight
Soil/Rocks
*ALL MADE UP OF CELLS/ONCE MADE UP OF CELLS

6. Underneath t-chart more notes…
Organisms within ecosystems depend on both abiotic and biotic factors to survive.

7. November 1, 2017
Take out last night’s HW: there was nothing! Any late flashcards???
Write down tonight’s HW: Worksheet
Do Now: How are abiotic and biotic factors alike? How are they different?

8. ONE TRIBE FOCUSED ON THE SUCCESS FOR ALL!
Station activities….
At your station. You will work as a team.
Circle all the abiotic factors and place an A next to them.
Square all the biotic factors and put a B next to it.
When time is up you will switch to the next station!
Make sure you are sharing the marker (1 writer at each station)
Question each other: Do you think this is biotic or abiotic? Why do you think that?
ONE TRIBE FOCUSED ON THE SUCCESS FOR ALL!

9. NOVEMBER 2, 2017 Take out last night’s HW: Worksheet
Write down tonight’s HW: Worksheet
Do Now: Put in order from smallest to largest….
Population, Community, Organism
Explain why you chose this order.

10. Read about the organization of levels within an ecosystem

11. (Insert Tape in Flip-Up)
Notes – p. 19 Title: Lesson 1
Habitat: the place within an ecosystem that provides food, water, shelter, and other biotic and abiotic factors an organisms needs to survive and reproduce
(Insert Tape in Flip-Up)
Organism: an individual animal, plant, or single-celled life form
Population: all the organisms of the same species that live in the same area at the same time
Community: all the populations living in the same area at the same time

13. NOVEMBER 3, 2017 Take out last night’s HW: Worksheet
Write down tonight’s HW: No HW!
Do Now: Revisit Picture and apply terms again.

15. Notes – p. 20 Title: Lesson 1
Population Density: the size of a population compared to the space the species inhabits
You can observe an area is densely populated or compare densities.
1 unit = 5m2
2 people/m2
4 people/m2

16. Notes continued…
When an area is densely populated this may lead to overpopulation.
Overpopulation: occurs when a population becomes so large it causes damage to the environment and the species itself.
Overpopulation leads:
decrease in resources
competition between members of a population and community
spread of diseases

17. NOVEMBER 6, 2017 Take out last night’s HW: No Homework
Write down tonight’s HW: Worksheet
Do Now: How does overpopulation occur? What does it lead to?

18. Solving for population Density
Two tanks are filled with 9 liters of water. Tank #1 contains 81 fish. Tank #2 contains 27 fish. 1) We can solve by observing since in this example the populations take up the same amount of space but have a different amount of individuals. 2) Use the formula: Population Density = Number of Individuals Amount of Space

19. Tank #1 = 81 fish divided by 9 liters = ________________________
Which tank has a greater density of population?
________________________________
If overpopulation occurs at 5 fish/L… Which tank is overpopulated?

20. Another example …
Area #1 has 16 trees within 16 m2 of space.
Area #2 has 16 trees within 4 m2 of space.
You cannot use observation alone for this problem because it is harder to compare areas of different size.

21. Population Density = Number of Individuals
Let’s solve…
Use the formula:
Population Density = Number of Individuals
Amount of Space
Area #1 has 16 trees within 16 m2 of space.
Area #2 has 16 trees within 4 m2 of space.
Area #1 =
Area #2=

22. Has either area reached overpopulation?
If overpopulation occurs at 5 trees/m2….
Which area is overpopulated?
______________________________

23. Population Density = Number of Individuals
Group work
You may use your observation skills, but you must prove which area has a greater population density based on quantitative data.
Use the formula:
Population Density = Number of Individuals
Amount of Space
When you’ve completed your sheet, ask for the next one!

24. November 8, 2017 Take out last night’s HW: Worksheet
Write down tonight’s HW: Worksheet
Do Now: Out of all the populations listed. Which area has the greatest density of tulip population?
Area 1= 6 tulips/m2
Area 2= 4 tulips/m2
Area 3= 7 tulips/m2
Which area(s) would be overpopulated if the carrying capacity is 5 tulips/m2

25. Notes – p. 22
Carrying Capacity is the largest number of organisms an ecosystem can support.
This amount is determined by limiting factors (aka = resources available) in an ecosystem.
Water
Sunlight
Food
Living Space
When a population size is greater than the carrying capacity the effects of overpopulation will be seen.

27. Human population video

28. November 13, 2017 Take out last night’s HW: Worksheet
Write down tonight’s HW: No Homework
Do Now: Revisit end of video… Keep in mind this question… Why did the human population grow so rapidly within the past 200 years?

29. P. 23 notes Title: Lesson 1
Populations change by …

30. Before Video add page numbers to unit 2 tab

33. November 16, 2017 Take out last night’s HW: Flashcards
Write down tonight’s HW: Worksheet (both sides)
Do Now: What is a habitat? Give an example of one.

34. Add page numbers to vocab for lesson one
Ecosystem p Population p. 19
Abiotic Factors p Community p. 19
Biotic Factors p Population Density p. 20
Habitat p Overpopulation p. 20
Organism p. 19

35. Notes – p.24 Title: Lesson 2
Niche: the way a species interacts with abiotic and biotic factors to obtain food, find shelter, and fulfill other needs.
*When niches overlap competition occurs*
Competition: describes the demand for resources, such as food, water, and shelter, in short supply in a community.

36. Ecosystem
Niche
Competition
Niche
Habitat
Niche

37. November 20, 2017 Take out last night’s HW: Niche Activity/ Questions
Write down tonight’s HW: Finish Predation Questions in INB
Do Now: What is a predator? Name an example. What is a prey? Name an example.

38. Notes – p.25 Title: Lesson 2
Predation: the act of one organism, a predator, feeding on another organism, its prey.
Predator: the organism that does the killing (for example: wolf)
Prey: the organism that is killed (for example: moose)

39. Videos https://www.youtube.com/watch?v=UkIjaHwFIbE

40. November 21, 2017 Take out last night’s HW: Moose/Wolves Questions
Write down tonight’s HW: Finish Worksheet attached on p. 26
Do Now: Alfred is having an argument with his sister over a rabbit being the predator of grass. His sister stated that the rabbit cannot be a predator because he’s a herbivore. Who do you agree with? Alfred? Or his sister?

41. Notes – p Title: Lesson 2
Symbiosis: is a close, long term relationship between two species that usually involves an exchange of food of energy.
Mutualism: a symbiotic relationship in which both organisms benefit.
Commensalism: a symbiotic relationship in which one organism benefits but the other neither benefits nor is harmed.
Parasitism: a symbiotic relationship in which one organism benefits while the other is harmed.
Parasite: one organism living on or inside another organism and harming it.
Host: the organism that a parasite lives in or on.

42. Videos
Symbiosis Video = (5 min)
Parasitism Video = (4 min)
Mutualism Video = (4 min)
Commensalism Video = (2 min)

43. November 27, 2017
Take out last night’s HW: Per Worksheet on p. 27, Per 6-7 Worksheet on p. 26
Write down tonight’s HW: ONLY PERIOD 6 & 7 Worksheet on p. 27
Do Now: Describe the differences between predation, competition, parasitism, commensalism, mutualism.

44. November 28, 2017 Take out last night’s HW: Per 6-7 Worksheet on p. 26
Write down tonight’s HW: Complete Final Draft of CER/ Quiz Tomorrow!
Do Now: Flowers and Pollinators have a special relationship. They continue to help each other out. Pollinators receive nectar as an energy source. The flowers are assisted in the process of transferring pollen to the stigma and enables the flower to produce a seed and continue on the next generation.
What type of relationship is this? Make a claim – Present Evidence – Provide Reasoning

45. The relationship between the flower and the pollinator is mutualism
The relationship between the flower and the pollinator is mutualism. According to the scenario, the flower benefits by being pollinated which is the first step of reproduction. Pollinators benefit by getting nectar as a food source. Whenever two organisms benefit this is a mutualistic relationship. By helping eachother out this increases their chances or reproduction and survival.

46. The remora attaches onto a shark to receive a free ride and feed off leftovers that fall out of their mouth as they swim. The shark is not harmed, while the remora benefits.

47. The remora and the shark have a relationship known as commensalism
The remora and the shark have a relationship known as commensalism. According to the scenario, the remora feeds off the shark’s leftovers, since it’s a scavenger, and gets a free ride to conserve energy. The shark is not affected; it does not benefit and it does not harmed. Commensalism is when one organism benefits, while the other is neutral. Since the remora is benefitting it will have a long healthy life because of this relationship. If the remora is attached for too long the shark will be harmed and the relationship will become parasitic.

48. Claim: (What is the relationship between the two organisms you’ve chosen – Restate the organisms involved scenario and make a claim)
Evidence: (Cite/State two facts from the scenario that support why it is this type of interaction/relationship)
Reasoning: (Connect your evidence to your claim with scientific principles – Why do these facts support the relationship – Connect to the definition of the relationship/interaction or make predations about how the relationship/interaction plays a role within the ecosystem.