Chapter 1 Science and the Environment Section 1: Understanding Our Environment DAY 1

Transcription

1 Chapter 1 Science and the Environment Section 1: Understanding Our Environment DAY 1

2 Start up Write a complete sentence describing the word Natural Resource and Virginia.

3 Environment Living and non-living things surrounding and effecting an organism. What does your environment include at school?

4 Environmental science- the study of how humans interact with the environment. abiotic Ecology- study of how living things interact with each other & the nonliving environment. Biotic

5 Organization of life Vo cab Bio 1 review: Arrange in order; organism cell organ organ system tissue

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7 Yuh know me; I keep it homeostatic. smallest unit of a living thing.

8 Hey Marty, tell those two to keep their interaction PG. A population is group of interacting and interbreeding organisms Of the same species.

9 Is he trying to tell me something? A community is a group of interacting populations. (different species)

10 An ecosystem is a community of organisms and their non-living (abiotic) environment Abiotic Factor Biotic Factor

11 The Biosphere the thin layer of the earth that supports life. If the earth was the size of an apple, the biosphere would be the thickness of its skin.

12 Biotic- living (of biology) ex. Abiotic- nonliving ex.

13 Environmental science is an interdisciplinary science, which means that it involves many fields of study.

14 Concept map! Link these words with Environmental Science- main idea ecology, earth science, biology, social science, physics

15 Chemistry energy

16 What is the Goal of Environmental Science? A major goal of environmental science is to understand and solve environmental problems. To accomplish this goal, environmental scientists study two main types of interactions between humans and their environment: 1) How our actions alter our environment. 2) The use of natural resources like water, coal, and oil. like water, coal, and oil.

17 Our Environment through Time Wherever humans have hunted, grown food, or settled, they have changed the environment. For example, the environmental change that occurred on Manhattan Island over the last 300 years.

18 Our Environment Through Time I. Hunter-Gatherers II. Agricultural Revolution Industrial Revolution III. Industrial Revolution Technological Age IV. Technological Age

19 Hunter-Gatherers *Most of human history *Small migrating groups *Burned forest to clear land to hunt easier *Spread plants to new areas *Over-hunting of large game led to extinctions

20 Agricultural Revolution *10,000 yrs ago *human populations grew rapidly *land supports 500 x as many people as hunter gathering. *slash & burn farming lead to erosion, floods & poor soil. *animal & human power

21 Industrial Revolution *mid-1700 s *fossil-fuelsfuels *cheaper factory produced goods. *fewer farms & more urban areas. *cheaper transportation of goods across long distances

22 Spaceship Earth

23 Spaceship Earth Earth is a closed system Only the sun s energy enters Earth and heat leaves the Earth. Our other resources must be protected because they are all we have.

24 Which of the following components of an ecosystem are not abiotic factors? a. wind b. small rocks c. sunlight d. tree branches

25 Three major types of environmental problems Resource Depletion Pollution Loss of biodiversity

26 Resource Depletion Natural Resources are a. Renewable replaced relatively quickly by nature OR b. Nonrenewable- forms at a much slower rate than is used

27 Which of the following pairs of organisms belong to the same population? a. a dog and a cat b. a marigold and a geranium c. a human mother and her child d. a spider and a cockroach

28 This level of organization includes both biotic and abiotic factors a. population b. community c. species d. ecosystem

29 Renewable resources Wood Water Crops Sun Animals

30 Nonrenewable resources Minerals Fossil Fuels Elements

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32 Think about this? Is a species renewable or nonrenewable????

33 Which statement is NOT true about renewable resources? a. A renewable resource can become depleted. b. Energy from the sun is a renewable resource. c. Conservation efforts can help save renewable resources in a relatively short time by natural processes. d. Renewable resources cannot be replaced.

34 daisy flounder r raccoon sea urchin mussels whitetailed deer puffer hermit crab whelk screech owl clam oak gull rat snake horseshoe crab cardinal monarch butterfly egret bass spider crab harbor seal red-winged blackbird sea star cattail skate right whale oriole

35 Pollution Biodegradable can be broken down by natural processes. Examples: newspaper, food, sewage OR Nondegradable- cannot be broken down by natural processes. Examples: mercury, lead, some plastics

36 Loss of Biodiversity Biodiversity- a large number of different species in a given area. Rainforest are the most diverse areas on Earth. Extinctions are rapidly increasing due to habitat destruction; thus, biodiversity is decreasing. Biodiverse areas

37 Divide paper into 6 boxes, label Hunter/ gatherers Agricultural Main characterisitics: Industrial Effects on Env.

38 Concept summarizer 1) Write three sentences where you give you re opinion as to which one had the most effect on the environment, why do you think this, explain. or 1) Draw a cartoon showing the differences between the three. (use pictures from your book and stick figures)