Soil Science and Technology Home Page
This site looks at soil fertility, nitrogen in soil, soil chemistry, soils as electrical systems, soils as filters, soil physics and particle sizes (silt, sand, and clay), microorganisms in soil, nutrients that plants need, soil morphology, judging soil by feel, structures and shapes of soil, and soil profile images from Arizona, Florida, Michigan, and other states. Learn how soil is formed and how long it takes to create an inch of soil.
Trends of Snow Cover and Temperature in Alaska
The objective of this lesson is to compare NASA satellite data observations with student surface measurements of snow cover and temperature.
Infrared Astronomy Tutorial
examines infrared light, how it was discovered, infrared astronomy, atmospheric windows, and more. An infrared astronomy timeline is included, along with links to news and discoveries, images, and classroom activities.
Searching for Meteorites
Water balloons filled with flour and pebbles help students model the distribution of materials after meteorite impacts. The flour simulates the ejected crater material and the pebbles represent the meteorite fragments. Students will use the model to draw conclusions about where it would be easiest to find meteorites.
The Age of Einstein
The Age of Einstein, is a brief introduction to Einstein's Theories of Special and General Relativity. It is a book for the inquisitive general reader who wishes to gain an understanding of the key ideas put forward by the greatest scientist of the 20th-century. No more than a modest grasp of High School Mathematics is required to follow the arguments.
Online Statistics: An Interactive Multimedia Course of Study
Online Statistics: An Interactive Multimedia Course of Study is an introductory-level statistics book. The material is presented both as a standard textbook and as a multimedia presentation. The book features interactive demonstrations and simulations, case studies, and an analysis lab.
Horseshoe Crabs and Birds: Could This Living Fossil Become Extinct?
This BioBulletin Web site takes an in-depth look at horseshoe crabs and why this creature that predates the dinosaurs is now at risk. The site includes text, videos, photographs, and interviews with key scientists.
Symmetries and Their Properties-Part 3: Translations
This investigation will help you to understand how translations work and what happens when two or more translations are applied one after the other.
Resources on Alaska History and Politics
This National Park Service website offers links to a variety of articles about the history and politics of Alaska. Users can download PDF articles about World War II in Alaska, the Alaska Goldrush, and national historic places. The site also features links to educational resources such as teachers' guides to teaching about historic places and culture.
The American Variety Stage: Vaudeville and Popular Entertainment, 1870-1920
This is a multimedia anthology illustrating the vibrant and diverse forms of popular entertainment, especially vaudeville, that thrived from 1870-1920. Included are 334 English- and Yiddish-language playscripts, 146 theater playbills and programs, 61 motion pictures, 10 sound recordings and 143 photographs and 29 memorabilia items documenting the life and career of Harry Houdini.
Creatures that "glow" in the night
This Wisconsin Center for Environmental Education activity (PDF) encourages students to practice experimental design and scientific writing through the study of bioluminescence. Students observe and experiment with bioluminescent dinoflagellates (Pyrocystis fusiformis), learning how and why they produce light. The activity includes information for teacher preparation, an introduction to bioluminescence, defined vocabulary terms, a list of necessary materials, procedure, assessment questions, and
Blogging: an introduction
Weblogs, or "blogs" for short, have many uses in education, as tools for publication, research, administration, and more.
Mutual support among beginning teachers
Beginning teachers share similar concerns and problems. Communication can help them share solutions, too.
Kõrv loodusesse - loodushelid ja helid looduses
Loodushelid ja helid looduses. Veebilehed info ja illustratsioonidega vastavatest liikidest, võimalik kuulata helindeid. Kõrv loodusesse kasutab kahte erinevat kokkusurutud helifaili formaati: mp3 ja real audio. Üldjuhul võimaldab mp3-formaat paremat kvaliteeti, kuid faili maht on suur. Real audio on väiksema failimahuga, kuid sellega kaasneb kehvem kvaliteet. Aeglase ühenduse korral on seetõttu otstarbekam valida real audio helindid. Kiirema ühenduse korral tasub kuulata parema kvalitee
TÜ Loodusteadusliku hariduse lektoraadi vastavatel kursustel (Loodusteaduste visualiseerimine) osalenud õpetajate koostatud interaktiivsed mudelid bioloogiliste protsesside tundmaõppimiseks. Kuigi mudeleid ei saa lugeda lõplikult viimistletuks, on nad õppeprotsessi visualiseerimiseks asjakohased: kasvõi ideede saamiseks. Kasutajal on soovitav fail enne oma arvutisse salvestada ning vajadusel täiendada.
Calisphere Themed Collection - 1780-1880: California in Transition: California Missions, 1780-prese
These images of the California missions show the transformation of the mission structures over the past two centuries. Some show the types of people who would have lived in or visited the missions. The missions mark California’s Spanish colonial past, and remain today as sites for community gatherings and heritage.
Calisphere Themed Collection - 1780-1880: California in Transition: Early California Exploration and
California has always been a place of cultural interaction. Early California evolved and changed with each new group of settlers. These images depict the developing interconnectedness of California's early cultures. They also underscore the importance of movement and later settlement of peoples in California. Some of the modern images underscore the contested and often romanticized nature of California’s Spanish and Mexican heritage. This is a collection of primary source images.
Butterfly pupa anatomy
The pupa is the third stage of the butterfly's life cycle. The caterpillar creates a pupa, sometimes called a chrysalis, and emerges as the adult butterfly after metamorphosis. The butterfly's wings will be used for flying.
Blood flow of moving Lumbriculus
Observe blood flow and muscle contractions in each body segment of Lumbriculus variegates (note how blood flows in relation to the worm turning in the capillary tube).
Bee on flower
Bees visit flowering plants to collect nectar so they can store it as honey back at their hives. As a bee visits one flower after another, pollen collects on its entire body and especially on the legs. Bees help pollinate flowers while they collect nectar. This is a mutualistic behavior.