Warm UP! 

List things that all humans need to survive.

What are some things we depend on to support a comfortable lifestyle in 2012?

What is the difference in “survival” and “lifestyle”?

List some things you enjoy but could survive without?

Home many things can be made from a tree?

Quick Review1. I provide clean energy from running water which turns giant turbines, but

there are fewer and fewer locations where I will work

2. I am the most abundant of fossil fuels, a nonrenewable source of energy, expensive to mine, and a cause of acid rain (pollution)

3. I am the “hope for the future.” A free and non-polluting source of energy but expensive to build in homes. On cloudy days I’m hard to find.

4. I release an enormous amount of energy but am dangerous due to high risks of radioactive waste products, meltdowns, and radiation exposure. I form from the splitting nucleus of uranium atoms.

5. I am the cleanest burning fossil fuel but will leave large craters in the earth from where I’m extracted and am highly flamable if handled carelessly.

Solar Energy

Natural

Gas

Coal

Hydroelectric energy

Nuclear Fission

Who am i?

Deforestation• Explanation:– Removal of trees so land can be used for other

purposes

Deforestation• How bad is it for the environment?– Responsible for ~ 20% of Earth’s greenhouse

gasses– less CO2 removed from atmosphere by trees– damages soil, increased erosion

Deforestation• Solution?– Replant trees and use other materials or energy

sources to prevent cutting down trees

URBANIZATION HTTP://YOUTU.BE/Z9AZFWFYATI

Urbanization• Explanation:– Physical and massive growth of and migration to

large cities

Urbanization• How bad is it for the environment?– Heat is becoming more abundant & heat is

absorbed

Urbanization• Solution?– Implement places where land will not be harmed– Reclamation– Urban farming

DEFORESTATION HTTP://YOUTU.BE/FO4WXLY4QYK

Overgrazing• Explanation:– Plants are exposed to intensive grazing for long

periods of time without enough time to recover – caused by poor agricultural applications or overpopulations of invasive species

Overgrazing• How bad is it for the environment?– Increases soil erosion which harms future

agricultural productivity

Overgrazing• Solution?– Can be corrected with lime and organic fertilizers– Loss of soil depth, however, takes centuries to

correct

OVERGRAZING HTTP://YOUTU.BE/DCHVJIPWIXK

Agriculture• Explanation:– Also, FARMING– Cultivation of plants, animals, fungi and other life

forms for food, fiber, and other products used to sustain life

Quiz in 15 minutes

• 10:07

Agriculture• How bad is it for the environment?– We have to overuse farms in order to sustain a

growing human population. We use too many chemicals such as pesticides and fertilizers

Agriculture• Solution?– Population control– Sustainable farming– Practices (organic

AGRICULTUREHTTP://WWW.YOUTUBE.COM/WATCH?V=CAD4LYQAE4I

Checks for understanding

• Desertification, soil erosion, urbanization, and agriculture collectively affect the _________. 1) Lithosphere2) Mantle3) Weather4) Human population

Checks for Understanding

• Which of the following is an example of negative impact on the environment due to human activity?1. Oil in the Gulf of Mexico2. Volcanic ash in the atmosphere3. Tsunamis caused by earthquakes4. The movement of Earth’s plate over time

Quick Quizzes

• What is urbanization?1. A clothing style2. physical growth of an area as a result of global

change3. type of farming4. growth of land over time

Quick Quizzes

• What is going to happen if all of the undeveloped land in an area becomes developed?1. No land for farming2. no land for animals3. no land for trees4. all the above

Photo Matching- Directions

• On the back of your notes are a list of titles. You must match these titles with the photos you see on the board.

• On your worksheet, write the photo number, the appropriate title, and fill out the rest of the info about the photo

Photo Matching

• Expectations– You are going around with your assigned group

members– Talking quietly about the picture– Writing in the title, description & solution– Do not rotate until directed to

Let’s do 1 together

2nd block groups

3rd block groups

4th block groups

1. Explain this picture as a consequence of human activities on the lithosphere

2. How does agriculture affect the lithosphere?

Exit Quiz

This is review for mid-term examThis will go over unit 1 material

On the back when finished explain how these terms are related to impacting the lithosphere

1.Urbanization2.Overgrazing