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Students learn how chemicals from pharmaceuticals and personal care products are entering the waterways upstream from fish, crabs, and drinking water intakes. There is evidence that some members of these species are becoming intersex due to estrogenic compounds being disposed of improperly. Please note: Preview of this title is highly encouraged due to sensitive subject matter.
(Source: DCMP)
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.
Organics are carbon-based molecules and key ingredients to life. Scientists want to know if organics can be found on Mars. However, finding organics is difficult because they easily break down when exposed to harsh things like extreme radiation and chemical oxidants. These broken down particles give the Martian surface its rusty color. Part of the “Mars in a Minute” series.
Solar panels are becoming a familiar site in communities across the United States, but what about solar fuels? A solar fuel is produced from sunlight through artificial photosynthesis, mimicking what Mother Nature has been doing for billions of years. Many chemists and chemical engineers are working to make solar fuels a viable option in the future. Part of the National Science Foundation Series “Science Nation.”
There’s no shortage of ideas about how to use nanotechnology, but one of the major hurdles is how to manufacture some of the new products on a large scale. With support from the National Science Foundation (NSF), UMass Amherst chemical engineer Jim Watkins and his team are working to make nanotechnology more practical for industrial scale manufacturing. Part of the National Science Foundation Series “Science Nation.”
Anything that takes up space or has mass is matter. Under certain conditions matter can be a solid, liquid, gas or plasma. Different states of matter can be combined in suspensions, and solutions and mixtures can be taken apart. Exploring the physical and chemical properties of matter provides insight into nature and a glimpse at how scientists and engineers use this knowledge to shape our world.
Presents the principles of atmospheric dynamics. The Earth's atmosphere is a balance of gases and sunlight that allows for the possibility of life. It has a composition, structure, and life sustaining biological, geological, and chemical cycles in its lower reaches. Also, discusses how these atmospheric elements are being impacted by the unprecedented burning of fossil fuels.
Photosynthesis converts light energy from the sun into chemical energy stored in organic compounds, which are used to build the cells of producers and ultimately fuel ecosystems. After providing an overview of photosynthesis, a series of animations describe the inside of the cells of a leaf to explain how the reactions of photosynthesis happen.
Bullet ants have the most intense sting of any insect, and in this episode, host Emily Graslie learns what makes their sting so painful. She visits with Dr. Corrie Moreau and witnesses how she extracts their venom to learn more about its chemical makeup. Part of "The Brain Scoop" series. Please note this title shows the dissection of insects.
Part of the "Inside the Living Cell" series. Illustrates the mechanisms of photosynthesis and cellular respiration. Introduces adenosine triphosphate, or ATP, the universal energy carrier molecules that supply energy-hungry reactions. Also outlines the structure and function of chloroplasts and mitochondria, energy transforming organelles. Overviews ATP and chemical energy, mitochondria, aerobic respiration, chloroplasts, and the reactions of photosynthesis.
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 correct methods to clean up and dispose of materials in a science lab. Students also learn how to safely clean up chemical spills. Part of the Science Video Vocab series.
Climb aboard the Cyclops, a microscopic research vessel, and investigate an amazing hidden world on which all living things depend. The Cyclops houses a team of scientists known as the Micronauts and guides them through their discoveries of biological classification, diversity, and ecology. In this episode, the crew explores the extreme environment of a shallow salty sea. Their mission is to discover the chemical conditions of a living microbial mat. Part 13 of Microscopic Monsters Series.
Enzymes are proteins which are manufactured by the human body during the process of protein synthesis. They are catalysts that drive every chemical reaction taking place in the human body, and they enable the human body to be built from proteins, carbohydrates, and fats. Enzymes are highly specific in their activity and form an enzyme-substrate complex speeding up processes as they lower the activation energy during a given reaction period. Through genetic engineering and by isolating specific enzymes, it has become possible to harness the power of enzymes.
Part of the "Active Physical Science" series. Provides an overview of the basic concepts of physical and chemical science. Contains the following sections: (1) "Air Quality," which contains "Test of Two Gasses Using a Glowing Splint," "Combustion in a Car Engine," "Convection," and "Inversion"; (2) "Energy," which contains, "Student Rube Goldberg Machines" and "What Affects a Cart's Kinetic Energy?"; and "How Do Machines Help Build Big Things?"
More energy from the sun hits the Earth in one hour than is consumed on the planet in a whole year. Caltech chemical engineer Sossina Haile and University of Minnesota mechanical engineer Jane Davidson are working to expand the nation’s renewable energy storage capacity. Their mission is to put the heat of the sun to work creating renewable fuels from sources that don’t need to be drilled out of the ground. Part of the National Science Foundation Series “Science Nation.”
The human body needs to take in food and water found in the environment, and through a sequence of mechanical and chemical processes, it converts that food into nutrients that sustain all the body's activities. The digestive tract alone has nine major organs devoted to this process, and the renal tract has three. Join Dr. Mark Reisman as he provides you with a look at the anatomy and physiology of the many organs and structures of digestion. Lastly, explores the properties of metabolism and nutrition.
A great deal of today's modern technology exists due to the extensive use of the abundant chemical element, Silicon. California's Silicon Valley is where we find several of the world's most innovative and successful technology companies that touch all areas of human needs. Two of these companies, SunTech and Complete Genomics, are on the forefront of the innovative use of computing technology. Through their groundbreaking methods and designs they have harnessed the computing power of the Silicon Valley and applied it to creating more efficient and effective solar power generators as well as cost effective and highly accurate human genome mapping techniques.
Part of the "Life in Aquatic Environments" series. Shows the variety of body forms and structures found in an environment ripped by waves. Examines structural, chemical, and behavioral adaptations that protect animals in this crowded environment. Looks at adaptations used to harvest the abundant food sources of the shore. Provides an overview of asexual and sexual strategies and the importance of larval development in the plankton. Reveals complex webs of life living in these accessible habitats.
While it is relatively straightforward to build a box on the macroscale, it is much more challenging at smaller micro and nanometer length scales. At those sizes, 3D structures are too small to be assembled by any machine and they must be guided to assemble on their own. With support from the National Science Foundation, Brown University mathematician Govind Menon and Johns Hopkins University chemical and biomolecular engineer David Gracias are developing self-assembling 3-D micro and nanostructures which can be used in a number of applications, including medicine.
The human brain is often compared to a computer, but this three-pound organ is far more complex, powerful, and capable than the most advanced computer. Everything we do, are, think, and feel begins with the brain. Defines the parts and functions of a brain cell, explores how the brain works, and mentions brain chemicals.
Showing collections 1 to 6 of 6
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
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
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
