Global Change

Habitat

People &
Environment

Water
Quality

Wildlife &
Endangered
Species

It's
Elementary

US Geological Survey Learning Web is designed to help teach the world of Earth Science. These activities have been developed to meet national Earth Science curriculum standards and have been tested and reviewed by teachers and students alike.
http://www.usgs.gov/education/learnweb/About.html

Change and Cycles (Gr. 4-6)
Many substances dispersed in air or water are measured in parts per million. Some of these substances are colorless, odorless, and tasteless, yet even in small quantities they can be toxic.
http://www.usgs.gov/education/learnweb/Lesson2.html

Student Activity: Where Land, Air, and Water Meet
http://www.usgs.gov/education/learnweb/L2Act1.html

Earth as Home (Gr. 4-6)
The student will understand some of the effects people have on their natural environment.
http://www.usgs.gov/education/learnweb/Lesson5.html

Student Activity: An Island Home
http://www.usgs.gov/education/learnweb/L5Act1.html

Time and Cycles (Gr. 4-6)
Using the straws, students will work in groups to reconstruct a 50 year climatic history.
http://www.usgs.gov/education/learnweb/Lesson1.html

Student Activity: Logs of Straws: Dendrochronology
http://www.usgs.gov/education/learnweb/L1Act1.html

Teacher's Guide:
Much of the change takes place on Earth is part of natural cycles. Human activity, however, can also cause environmental changes. The following activities are presented to assist in teaching these concepts of Global Change.
http://www.usgs.gov/education/learnweb/TGuide_GlobalChange.html

Habitat

People &
Environment

Water
Quality

Wildlife &
Endangered
Species

It's
Elementary