This site provides the second edition of the US classification system, based on soil properties actually seen in the field, called “Soil Taxonomy, A Basic System of Soil Classification for Making and Interpreting Soil Surveys”. There is a PDF format for printing or viewing that includes text and soil maps.
The Twelve Soil Orders
This site gives a detailed description of the twelve soil orders and detailed maps of their locations in the United States.
The Mineral and Gemstone Kingdom
Find gemstones grouped by a range of search criteria, including color and crystal shape. The site also has information about minerals, a photo gallery, and a glossary. Site authored by Hershel Friedman.
Minerals by Name
An alphabetical listing of minerals. The description of each mineral includes a photo, its chemistry, and its physical characteristics. Site developed by Amethyst Galleries, Inc.
American Geological Institute's Earth Science World Image Bank
To view many photographs of structures formed by erosion, go to this site maintained by the American Geological Institute and do a search for key words such as: erosion, deposition, delta or canyon for many excellent images.
The following photographs relate well to this unit:
Compare the photos from the following links either by printing each of them or by opening them in separate windows on your computer:
Photo 1 - from the Earth Science World Image Bank
Photo 2 - from the Earth Science World Image Bank
Photo 3 - a gallery of 11 photos showing erosion and weathering from National Geographic
Arrange the landforms due to erosion by size, from smallest erosion channel to largest. Which do you think might form in a very short time? Which do you think took the longest to form?
Hint: Use other objects in the picture to determine the size of the channels.
The following links can be used for the Extension on page C-27 for Activity 29:
How Caves Form
Use this interactive website developed by Nova to explore four types of cave formation.
All About Glaciers
The National Snow and Ice Data Center provides information about the formation and effects of glaciers.
Personal Account: Avian Ecology
At this site, maintained by The Virtual Birder, ecologist Jennifer Nesbitt tells why she decided to become an avian ecologist and explains how she conducts research with birds.
NOAA Ocean Explorer: Marine Ecologist
Peter Etnoyer's pet fish had 200 babies in his aquarium when he was in elementary school. Go to this National Oceanic and Atmospheric Administration (NOAA) link to see what other events inspired this ocean explorer to become a marine ecologist.
Lief Sigren explains how his work as an ecologist relates to peoples' lives and wetland ecosystems all over the world at this site sponsored by the National Institute of Environmental Health Science .
Environmental Careers for Kids
Do you love trees? Like being outdoors? Check out this site, maintained by the Wisconsin Department of Natural Resources, to see what it is like, and what you need to do to become a forester (a person who works to maintain habitats in the forest).
Can you imagine robots so small they can fit inside the human body? How about a spray on skin that can be used to treat cuts? Or a glow-in-the-dark bike? Go to this site sponsored by a group of engineers' organizations, to read about these and other projects that engineers are currently working on. This site also introduces you to several different engineers and describes their projects.
This site, maintained by the National Academy of Engineering, has fun facts and cool links that show how turning imagination into reality can lead to a career in engineering.
Grand Challenges in Engineering
Watch a short video and learn about the Grand Challenges in engineering as determined by the National Academy of Engineering.
Earth Processes and Boomtown's Coast
Erosion of Sea Stack in Oregon
This site, sponsored by the United States Geological Survey (USGS), shows a sea arch in Oregon over a 100-year period of time. Use the photos to answer the questions in your book.
Yucca Mountain Archival Documents
Go to the U.S. Department of Energy's site for the latest information on storing radioactive waste, including the Yucca Mountain Repository.
Plate Tectonics Animation
You can choose the length of time you would like to animate the movement of the continents, beginning as early as 750 million years ago. Site maintained by the University of California's Museum of Paleontology.
Historical Perspective of Plate Tectonics
See five images that trace the movement of the earth's continents over the last 225 million years at this U.S. Geological Survey site.
PBS LearningMedia™ website. You may be required to create a free account on PBS LearningMedia to access this video. PBS LearningMedia™ website, details the evidence that supported the theory of plate tectonics. You may be required to create a free account on PBS LearningMedia to access this video.
Major Tectonic Plates of the World
This U.S. Geological Survey site contains a world map with major tectonic plates identified by name.
Tectonic Plate Motion
Examine a world map showing plate movement based on satellite data. You can then scroll down to the index map to select a region of the world and see vectors showing the direction and magnitude of movement. Site developed by NASA's Space Geodesy Laboratory.
You can see a world map with vectors showing the direction and magnitude of movement within tectonic plates. Site developed by the late John C. Butler, a professor at the University of Houston.
SEPUP Plate Motion Simulation
Use this simulation to complete Activities 47 and 48. Observe the movement of convergent, divergent, and transform plate boundaries over periods of time from 10 years to 20 million years. If you're using an older browser and experiencing difficulties with this simulation, you may view it in Flash.
Investigating Local Weather
Local weather information
Use this link to investigate your local weather. On the site, enter your city in the search box, then look for the "Seasonal Weather Averages" link about half-way down the page (above the Astronomy bar).
Oceans and Climate
Meet Dr. Randy Keller, a geologist who studies the chemistry of volcanic rocks to learn how explosive a volcano is, how old it is, how deep the lava came from, and what that lava encountered on its way to the surface.
Changing States of Water
Explore clouds and their association with weather in the Windows to the Universe site, sponsored by the National Earth Science Teachers Association.
Earth's Atmosphere Interactive
Use this link to gather and compare data from different atmospheric levels. If you're using an older browser and experiencing difficulties with this simulation, you may view it in Flash.
Check back here soon to see predictions from your class and others around the country on how the climate might change.
Worldwide Wind Interactive
Use this link to collect data about wind direction for cities all over the world. If you're using an older browser and experiencing difficulties with this simulation, you may view it in Flash.
Activity 74 As Earth Rotates
Activity 75 Sunlight and Seasons
Activity 76 A Year Viewed from Space
Activity 78 The Earth on the Move
Activity 79 The Predictable Moon
Activity 81 Moon Phase Simulator
Activity 82 Tides and the Moon
Activity 83 Marking Time
The North American Sundial Society
This site provides answers to questions about sundials and gives information about how to make or set up your own sundial. It also provides references and links to other sites.
Making a Sun Clock
This site from the Exploratorium tells you how to make a simple sun clock.
A Walk Through Time
This site of the National Institute for Standards and Technology provides information on both ancient and modern methods for measuring time.
Educational Exhibits about time, clocks, daylight savings, or calendars
This site lits the official U.S. time and has links to additional sites about time.
Sun-Earth Day 2005—Ancient Observatories
This NASA site contains links to a timeline and photographs of ancient structures used to observe the Sun and indicate the seasons.
SEPUP Seasons Interactive
Use this link to explore the seasons on Earth as viewed from space. If you're using an older browser and experiencing difficulties with this simulation, you may view it in Flash.
This NASA site explains the seasons and includes an animation.
The animation at this site shows the change in seasons as the Earth orbits the Sun.
Virtual Reality Moon Phase Pictures
This site of the United States Naval Observatory provides virtual views of the Moon for any date in the past or future.
This site provides today’s view of the Moon.
Moon Phase Simulator
Simulation not running properly? Make sure you have Java installed. Still not running? You may need to add an exception for the above website in your Java security settings. Using Google Chrome? An extra step is required to enable the use of Java plug-ins.
US Naval Observatory Eclipse Home Page
This site provides information about eclipses of the Sun (solar eclipses) and the Moon (lunar eclipses).
This animation of the Moon rotating around Earth helps you understand when spring tides and neap tides occur. It also shows how the phase of the Moon relates to extreme tides.
Tide Region Selection
This site allows you to look up tides at numerous sites in the United States.
Calendars and their History
This site from NASA provides information on the history and astronomical basis of calendars. It includes information on the Gregorian, Julian, Jewish, Islamic, Indian, and Chinese calendars.
Evidence for the Big Bang Theory
This short video excerpt, adapted from Nova describes the work of Arno Penzias and Robert Wilson, is provided via the PBS LearningMedia™ website. You may be required to create a free account on PBS LearningMedia to access this video.
Have you ever wondered what is it like to travel in space? The following NASA sites describe how astronauts handle everyday tasks like getting dressed, eating, sleeping, and exercising while in a microgravity environment.
Are you interested in becoming an astronaut? These NASA sites will help you learn what you can do to work toward a career in space.
NASA's Current Missions
This NASA site provides schedules and information about its current missions, some piloted and some unpiloted, that are exploring space right now.