Science 7: 3/16/11

• Jeopardy

• Human Impact Quiz

• Homework: Chapter 10 DR

Section 3: Viruses (1-13)

Due FRIDAY!

Human Impact on Environment!

100 100

200 200

400 400

300

400

M. Cycles Succession Loss of

BiodiversityIndustry

300 300 300

200

400

200

100

500 500 500 500

100

Row 1, Col 1

Explain the three major steps of the waterCycle:

1.Evaporation2.Condensation3.Precipitation

1,2

What is ecological succession? How longdoes it take for succession to occur?

1,3

What is deforestation and how does thisprocess affect biodiversity?

1,4

What causes acid rain?What is one negative effect acid rain has

On the environment?What is one solution to fix this problem?

2,1

What is transpiration?

2,2

What is a pioneer organism?

2,3

Explain the difference betweenRenewable resources and Nonrenewable

Resources and give three examples of each resource.

2,4

Explain why burning fossil fuels in the Midwest increases the amount of acid

Rain in NYS.

3,1

Daily Double!

3,2

What is a climax community? Explainwhy climax communities are the most

stable.

3,3

Pollutants are toxic substances that cause harmto organisms. Do pollutants increase

Or decrease as you move up a food chain?Explain.

3,4

Why is the ozone layer referred to as the earth’s Natural sunscreen?

4,1

In the nitrogen cycle,What types of organisms “fix” Nitrogen so that it is usable by

plants?

4,2

What are three causes of succession?

4,3

What are invasive species?Give an example of an invasive species and

Explain how this species has affectedThe native ecosystem.

4,4

What is the greenhouse effect?Give one example of a greenhouse gas.

5,1

The carbon cycle is made up of two life processes:Photosynthesis & Cellular Respiration

Describe each process & Identify the cellOrganelle that carries out each process.

Then describe how these materials are recycled Between plants & animals!

5,2

Explain the succession of a lake community toa forest community that occurred over 100s of years.

5,3

John noticed that insects were eating his corn Crops. John can not decide if he should

Introduce predators of the insects to his farm Or spray pesticides.

Discuss one pro and one con of each process.

5,4

What causes global warming?

What is one negative impact global warming hason the environment?

List three alternative energy sources that can be usedto reduce the burning of fossil fuels!