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Every element of earth's ecosystem is needed to maintain the delicate balance that supports all life forms. Groups of people and organizations work to keep and even to restore this balance. Mentions often how life on earth is interconnected and that environmental responsibility is everyone's business.
(Source: DCMP)
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term balance. Part of the Science Video Vocab Series.
For optimal performance, all the components of a race care must be balanced. Getting the right balance is hard because the weight of the fuel changes and the tires wear during the race. Crew chiefs make sure the cars are ready to race through the application of scientific principles. Part of "The Science of Speed" series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term balanced force. Part of the Science Video Vocab Series.
Some chemical reactions happen spontaneously, like metal rusting. Other reactions are non-spontaneous and need to absorb energy in order to occur. Using the Second Law of Thermodynamics, the principle of entropy, and the calculation of Gibbs free energy, scientists can predict which reactions will occur and vary the conditions to make more of the desired products. In equilibrium reactions, both products and reactants are always present. Equilibrium reactions in the human body are essential for life and can be exploited in chemical manufacturing as well. Part of the series Chemistry: Challenges And Solutions.
The ears are a masterpiece of miniature engineering, and our link to the world of sound. But their most important role is that they contain the tiny tubes that control our sense of balance. Presents the functions and parts of the ear in this look at the anatomy of hearing, speech, and balance. Graphics and microphotography vividly illustrate each part of the ear.
Establishes the vital importance of the greenhouse effect for life on Earth. Presents a balanced argument to assess whether anthropogenic climate change-often called "global warming"-is in fact taking place. Offers clear arguments on both sides of the debate and illustrates both more economically developed countries and less economically developed countries. Provides a thorough and balanced examination of this important and often contentious issue.
Using a balanced chemical equation to calculate amounts of reactants and products is called stoichiometry. It is a super technical-sounding word that simply means using ratios from the balanced equation. Topics covered in this program include the metric system, balancing equations, molar conversions, mass percent, empirical formulas, and limiting reactants. Part of the "Chemistry" series.
Scientists and researchers are working to understand the possible effects of Antarctic ice melt on global processes. Some areas that might be impacted include currents, water chemistry, and biological balance.
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to produce needed energy from nutrients. These processes help keep the Earth in balance by breaking down the food that photosynthesis produces.
Students explore the relationship between observations and measuring things in science. Specific ways of measuring length, mass, volume, and temperature are demonstrated using tools common to the classroom. Other terminology includes unit of measurement, meter stick, metric ruler, balance, graduated cylinder, and thermometer.
Part of "The Living Oceans" series. Captures the ecological balance established between animals and plants on a Caribbean coral reef. Details the symbiotic and commensally symbiotic relationships along with the predator/prey relationship.
Shows the crucial part water plays in the body's functioning and the system for keeping it in balance. Drinking, sweating, and breathing are covered. The urinary tract is analyzed in detail, with particular attention to the functioning of the kidneys.
There are 3900 caves in America's National Park System, and 21 are open to the public. Visits Mammoth Cave, Carlsbad Caverns, and the lava tube caves on Hawaii. Tours each and describes their unique features and formations. Emphasizes the delicate natural balance that exists in all caves.
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 steps of making scientifically sound observations. Part of the Science Video Vocab series.
The endocrine system maintains the body's delicate chemical balance. Describes the location, function, and effects of the major endocrine glands, and notes their close relationship to the nervous system. Some discussion of diabetes and hormonal imbalances.
The unique hard bottom reefs off the coast of the Carolinas are home to a dynamic and delicately balanced ecosystem. A population of invasive lionfish has moved into the area. Their presence is disrupting this ecosystem and threatening the commercial fish industry.
Showing collections 1 to 3 of 3
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Biology related concepts
A collection containing 59 resources, curated by Benetech
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
