Ocean Systems TEKS: 8.11 The student knows that interdependence occurs among living systems and the environment and that human activities can affect these systems.

8.11D) The students is expected to recognize human dependence on ocean systems and explain how human activities such as runoff, artificial reefs, or use of resources have modified these systems. Supporting Standard

Spiral: 8.11C) The student is expected to explore how short- and long-term environmental changes affect organisms and traits in subsequent populations. Readiness Standard

Spiral: 7.8C) model the effects of human activity on ground water and surface water in a watershed. Supporting Standard

EPISD Standards Based Currirulum 2012-2013

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What are Oceans used for?

• Discuss with your table group, ways on how humans use the ocean.

• 1A. After discussing, write your answers on the handout.

http://www.google.com/motion-of-the-ocean.jpg EPISD Standards Based Currirulum 2012-

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2. How are humans using The Ocean in the following picture?

http://www.google.com/imgres

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How are humans using The Ocean in the following picture?

http://www.magical-cruise-ships.com

EPISD Standards Based Currirulum 2012-2013

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How are humans using The Ocean in the following picture?

www.treehugger.com

EPISD Standards Based Currirulum 2012-2013

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Can You Recognize? • Draw a scenario where you can use the ocean

as a waterway to help you transport enough goods to keep a small country in business.

• Label the goods and amount of trips it will take to transport your goods in one year.

• What kind of impact will humans have on the oceans if they needed to make 1000 trips a month?

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Part II Explaining how human activity has modified ocean systems.

• Humans have modified the oceans systems negatively and positively.

• What are some examples of how humans have damaged the ocean systems? (write them down on your answer sheet).

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Using Our Oceans Positive Modifications

• Artificial reefs are breeding grounds for many species of marine organisms.

• Many rely on our oceans for food.

• Keeping our oceans free of pollution is important.

• Oceans are considered as roads for large ships.

Negative Modifications

• Drilling for resources can damage our oceans.

• Oil spills cause damage or death to organisms.

• Pollution and trash can also harm organisms.

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Artificial Reefs

• Sometimes when large ships are decommissioned (too old to use) they are sunk in warm waters to create a platform for corals to grow on.

• http://ngm.nationalgeographic.com/2011/02/artificial-reefs/harrigan-text

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Sorting Cards Activity

• Sort the cards into 3 categories

• Column for negative effects

• Column for positive effects

• Column for negative and positive effects

• Write your answers on the student page.

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7.8C Effects of human activity on ground water, and surface water in a watershed.

• Human activity on land can also lead to the modification of our ocean systems.

– Agriculture (pesticides, fertilizers)

– Pollution

– Sewer waste

– Trash

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Think, Pair, Share

http://www.google.com/imgres EPISD Standards Based Currirulum 2012-

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The Mississippi river runs through

the city of St. Louis.

Look at the photo and describe the

possible effects on our oceans.

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