To help you research the topics presented in Santillana Intensive English, your fellow students and teachers from around the world have recommended these interesting websites.
Click here to suggest Internet links.
Lesson 4.36
Rivers
www.lalc.k12.ca.us
www.lalc.k12.ca.us
Lesson 4.39
Wetlands
www.nps.gov
www.sonomawetlands.org
Lesson 4.40
Coral Reefs
www.FisheyeView.com
www.coralreefalliance.org
www.seaworld.org/infobooks
Lesson 4.51
What Is a Desert?
Lesson 4.52
Location of Deserts
Lesson 4.55
Living in the Desert
www.pbs.org/wnet/nature
Lesson 4.63
Africa
Lesson 4.64
Virtual Tour of the South Pole
Lesson 4.65
Asia Society
Lesson 4.74
Thunder and lightning
Lesson 4.75
Hurricanes
http://hurricanes.noaa.gov/
www.solar.ifa.hawaii.edu
www.nhc.noaa.gov/
www.usatoday.com/weather
Lesson 4.76
Tornadoes
www.tahoetwisters.com/
Lesson 4.81
Ecosystems
Lesson 4.86
Endangered Species
www.amnh.org
Lesson 4.88
Preserving the Environment
Lesson 4.89
Government and the Environment
Lesson 4.110
Technology and Our Lives
Lesson 4.120
Technology Changes over Time