Define ALL of the following words in your notes

• Greenhouse Effect• Global Warming • Deforestation• Desertification• Acid Rain • Soil Erosion

• Habitat Fragmentation

• Invasive Species • Biological Magnification• Endangered Species • Pollutant

In your notes!

In my own words…1. Biological Magnification-

Biological Magnification

• DDT is an insecticide that was used in the 1940s and is now illegal because can be cancer causing in animals (including humans)

• Biological Magnification is how effects of DDT spread

• Through the food chain (Trophic levels)

https://www.youtube.com/watch?v=RP9hmlRqbxs

Biological Magnification

• How would you explain it? –Put it into your own

words in your notes.

Desertification

• The 1930’s “Dust Bowl” in the Great Plains of the United States.

• Presently desertification affects millions on almost every continent.

• https://www.youtube.com/watch?v=w9RxnuBiFbg

• Not the growth of deserts, but the drying out of fertile lands.

Desertification

• How would you explain it? – Write it in your own words.

Deforestation

• The world’s rain forests could completely vanish in a hundred years at the current rate of deforestation. https://

www.youtube.com/watch?v=M4jhjt1_eyM

Deforestation

• How would you explain it, put it into your own words…

• How can we solve this problem?

Soil Erosion• A problem for productive agriculture

and water quality.

• https://www.youtube.com/watch?v=Xdg1lpQfLbo

• How would you explain it, put it into your own words…

Habitat Fragmentation• Concerns are direct loss of habitat and also direct

and indirect effects from the pipelines, roads, and other disturbances with the natural gas drilling sites. https://www.youtube.com/watch?v=xGBQFZHHKcc

• How would you explain it? Put it into your own words

• Endemic Species – A species that is unique and confined to a specific habitat.

• Succession - the process of a ecosystem giving rise to plants and eventually wildlife.

• Ozone depletion – A steady decline in the total volume of the Earth’s ozone in the stratosphere

Invasive Species • http://www.cbsnews.com/news/the-threat-of-invasive-species/

Invasive Species in PA • The Black and Brown Rat: introduced to the U.S. in the middle

ages from European shipping transports.

• Asian Lady Beetle: introduced from Asia looks like a lady bug, but it bites. Swarms homes this time of year for winter.

• Brown Marmorated Stinkbug: from China, Japan and Korea, accidentally introduced in the U.S. Discovered in Allentown, PA in 1998, and has spread throughout the state. It is an agricultural hazard because it feeds on fruit trees.

Endangered Species http://www.cbsnews.com/news/the-endangered-species-act-turns-40/

• In Pennsylvania 2 Animals on the list.• Eastern massasauga: venomous snake • Rabbitsfoot: freshwater mussel

Endemic Species

• Isolated on an island, these species are found only in one particular area of the world (naturally).

• Can you think of any? …. Here’s one• http://video.nationalgeographic.com/video/lemur_mouse

Successionhttp://science.howstuffworks.com/life/29496-assignment-discovery-succession-in-the-environment-video.htm

2 Types

• Primary

• Secondary

Ozone depletion

• Ozone protects us from UV radiation (causes sun burn)

• Decreasing the amount of ozone, increasing risks of the sun harming our skin.

• It is depleted by chlorofluorocarbons (CFCs) human made chemicals.

• CFCs are in aerosol cans, refrigerators, Air conditioners, and many more.

• https://www.youtube.com/watch?v=qUfVMogIdr8

Climate vs. Weather • The difference between weather and climate is a

measure of time. • Weather = conditions over a short period of time.• Climate = conditions " over relatively long periods

of time. (Decades)

• Climate changes happen slower than weather changes.

• http://video.nationalgeographic.com/video/climate-weather-sci

Textbook Questions!

Page 163 #’s 1 – 21

How do we know about past climates?

1.Ice core data2.Tree Rings 3.Sediment cores • https://www.windows2universe.org/earth/climate/paleoclimate_proxies_nsf.html

• In the past 50-60 years Global temperatures have risen 1 – 2 degrees Celsius

• Rising temperature causes melting, causing a greater rise in temperature. – Albedo Effect– https://www.youtube.com/watch?v=cW4JTHz1aRg

STUDY GUIDES • Finish them for class MONDAY May 5th

• Jeopardy Review game Monday! – 1st, 2nd and 3rd place winners get bonus points!

• TEST ON TUESDAY!!!!!