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Features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition, and this helps clarify pronunciation and provides opportunities to transfer words from working to long-term memory. Also concludes with a critical thinking question. For this particular clip, students will focus on water cycle.
(Source: DCMP)
Introduces water and its properties and uses. Shows water's three forms: liquid, gas, and solid and how it changes form through evaporation, condensation, and freezing. Emphasizes that all living things need water to survive. Demonstrates the water cycle and discusses ways people use this essential liquid.
A cycle or rhythm is a repetition of behaving in a regular pattern. There are many natural cycles for living and nonliving things on earth. Covers circadian rhythm (behavior based on a 24-hour cycle), annual rhythm (based on a yearly cycle), the water cycle, and the oxygen and carbon cycle. Highlights familiar examples of each. Quiz after summary.
Already parts of the world suffer from lack of water, and with increasing demand it's expected to get worse. To better understand and predict drought, thirty universities are collaborating in a multidisciplinary effort called the Shale Hills Project. Among the studies, is field research following the life cycle of water along the Susquehanna River Basin. With support from the National Science Foundation, civil engineer Chris Duffy and his team at Penn State are tracking several aspects of rainfall to better understand the relationship between the flow of water, drought prone areas, and urban populations.
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on the different types of precipitation including snow, rain, sleet, hail, and freezing rain. Also discussed is the water cycle's role in dispersing perception throughout the world. Part of the Science Video Vocab series.
What percent of earth's water is fresh? What are sources of freshwater? What is groundwater and how is it formed? Covers these questions and more in this discussion of water's characteristics, the water cycle, and freshwater's importance. Concludes with a quiz.
Describes human activities' effects on earth. Examines how humans, industrialization, and technologies impact the environment, water cycle, and land use. Encourages better planning and management of resources.
Introduces students to our planet Earth and its place in the solar system. Explains that Earth's unique position makes it conducive to life. Also explains the basics of earth science, including the water cycle, weather, and continents. Short review.
Drawing upon the American Geological Institute's huge geoscientific archive of information, this segment explores the hydrosphere and the atmosphere. It also covers their formation and components, the water cycle, geological evidence of past climate change, extreme weather, and the future of the fluid spheres. Part of the "Visions of Earth" series.
What causes earth's weather? Explains that the sun is the primary source of our changing weather phenomena as it warms the atmosphere and water. Covers weather forecasting, high and low pressure fronts, cloud formations, and the water cycle. Presents weather conditions for thunderstorms, tornadoes, and hurricanes.
Global warming is changing the intensity, duration, and frequency of precipitation. These changing climate patterns are altering the water cycle and negatively impacting the environment. As the climate of regions changes, life on earth is significantly impacted. The increased potential for flooding raises concerns over loss of life and property, and individual actions are critical to lessen global warming and climate change. Chapter 4 of Air: Climate Change Series.
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on the different types of precipitation including snow, rain, sleet, hail, and freezing rain. Also discussed is the water cycle's role in dispersing precipitation throughout the world. Part of the Science Video Vocab series.
Explains the science behind the workings of a nuclear power station. The basic version explores what fission is; the role of cooling water in nuclear reactors; the nuclear fuel cycle on mining, milling, enrichment, fabrication, and spent fuel on storage and reprocessing; and other uses of nuclear energy, including "non-power" uses. The advanced version expands on this information with a specific example of a fission reaction; the use of water to vary reactor power; different methods of mining uranium; a detailed discussion of enrichment, including structure and properties of uranium hexafluoride; and two methods of enrichment: centrifuging and gas diffusion.
Part of the "Life in Aquatic Environments" series. Places many of the organisms into an ecological perspective of hydras, planarians, annelids, aquatic insects, rotifers, protists, and all other organisms that provide food for fish and other vertebrates. Observes adaptations for planktonic life in daphnia and other cladocerans, copepods, rotifers, and planktonic algae. Explores bacterial decomposition, recycling of materials, adaptations for bottom life, and ecological relationships in the bottom community. Takes an underwater look at the highly specialized organisms that live in rapids, under rock communities, and in slower waters. Investigates adaptations for life in temporary wetland environments.
Part of the "Branches on the Tree of Life" series. Phylum Arthropoda is the most luxuriant branch on the tree of life. Covers phylum characteristics and three major arthropod classes: Crustaceans (copepods, waterfleas, branchiopods, decapods, and barnacles), Chelicerates (scorpions, pseudoscorpions, spiders, ticks, and mites), and Uniramians (centipedes, millipedes, and insects). Focuses on adaptations, life cycles, and evolutionary relationships in each section.
The horseshoe crab is a remarkable prehistoric animal and a modern medical marvel. Middle school students in South Carolina investigate horseshoe crabs, their life cycle, habitats, and the threats that affect them. One of nature’s puzzle pieces, they fit into place as an important partner with humans.
The hydrilla, a non-native invasive plant species, is overtaking Florida's Wakulla Springs, threatening many species that call the waterway home. The hydrilla has such a stranglehold on the springs that its aggressive growth cycle has made it impossible to totally eradicate. Instead efforts are being made to control the plant's growth in an effort to stop its encroachment into Florida's northern panhandle. Segment of video from Wild Chronicles Series.
Figure 2.15 (OpenStax, Biology 2e) caption: When we mix table salt (NaCl) in water, it forms spheres of hydration around the ions.
(Source: OpenStax)
Figure 2.9 (OpenStax, Biology 2e) caption: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds it forms a water molecule.
Showing collections 1 to 6 of 6
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3D models and images of the entire periodic table of elements
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