Not all plants form seeds. Some plants, such as ferns, release spores to reproduce. These spores can be seen by the naked eye, unlike the spores of mushrooms.
HoloGlobe: Outgoing Longwave Radiation for 1988 on a Flat Earth
This is one of a series of animations that were produced to be part of the narrated video shown in the HoloGlobe exhibit at the Smithsonian Museum of Natural History and the Earth Today exhibit at the Smithsonian Air and Space Museum. This particular animation was not used in the final video.
What the Ancients Knew: City in the Hillside
This 1:25 video tells of how the ancient cultures built a city in the hillside using geometry to lay out the grid so that it could be easier to live in during the seasons. This same system is used in many cities today. The video could be used to show the use of geometry in daily life.
Next steps After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
A glossary of terms used in Geograph
Great Zoom into San Francisco, CA: Fishermans Wharf
Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves fl
Hanford: An Overview
This is the Emmy Award-winning first chapter of The Hanford Story, a multimedia presentation that provides an overview of the Hanford Site—its history, today's cleanup activities, and a glimpse into the possibilities of future uses of the 586-square-mile government site in southeast Washington State.
Gone in 60 seconds, 2011
Partnership event involving RUN students. Performed at the Viaduct Theatre, Dean Clough, Halifax.
"Sustainable Development: Theory and Policy, Spring 2009"
"This course examines alternative conceptions and theoretical underpinnings of the notion of "sustainable development." It focuses on the sustainability problems of industrial countries (i.e., aging of populations, sustainable consumption, institutional adjustments, etc.); and of developing states and economies in transition (i.e., managing growth, sustainability of production patterns, pressures of population change, etc.). It also explores the sociology of knowledge around sustainability, the
Reading, speaking: Moving abroad
You practice reading comprehension by means of texts about moving abroad. You will be able to provide a reasoned (oral) argument of the advantages and disadvantages of emigration.
De kinderen bezighouden
Op het einde van dit hoofdstuk kan de student een vriend adviseren over vrijtijdsbesteding voor zijn kinderen.
Tires and ecosystems
Tires are one of the worst things that can be thrown into a landfill. They take up a lot of room and they can collect rainwater that is a prime breeding ground for mosquitoes. Tires can be repurposed, or used for other purposes, such as tire swings and playground toys. They can also be recycled and used to make school gym floors and shoes.
Old Macdonald Had A Farm
Excellent computer animated video song for children. (3:21)
Hundreds of mussels attached to rocks in the rocky intertidal zone
Mussels have two hard shells for protection and avoid drying out. When the shell is open, the bivalve extends its foot for digging or anchoring. Mussels need ocean water for food. They are found in lower and middle intertidal regions.
How Light Travels
In this video segment adapted from Shedding Light on Science, observe demonstrations of the fundamental idea that light travels in straight lines.
This lesson will allow students to explore an important role of environmental engineers: cleaning the environment. Students will learn details about the Exxon Valdez oil spill, which was one of the most publicized and studied environmental tragedies in history. In the accompanying activity, they will try many "engineered" strategies to clean up their own manufactured oil spill and learn the difficulties of dealing with oil released into our waters.
Chinese course online
This course provides 15 lessons for self-study at a beginners level. Each lesson includes conversations or texts, new words, grammar notes and writing materials for practicing Chinese characters. This course is based on the idea that learners can make extensive use of course materials and free software to do self-directed learning.
ejercicio regla de cramer
Un ejercicio en el cual se usa la regla de cramer para solucionar el sistema de ecuaciones
4 Action Initiative Sept. 11 Free Curriculum
This is an introduction to a free curriculum that this organization. The booklet can be downloaded here:
Sports Spread: Claret Jug chase wide open at Sandwich
Reuters Owen Wyatt, Andy Lulham of Betfair and Opta's Duncan Alexander pick through the key statistics and odds for punters eyeing golf's British Open along with cycling's Tour de France.