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Using light as a probe, scientists found innovative ways to make inferences about the inner structure of the atom. In this unit, scientists discuss the change from believing the atom was a single indivisible particle to later understanding the atom is composed of subatomic parts. This new picture of matter lead to the development of the quantum model of the atom, as well as ways to identify traces of chemical elements, whether on earth, in the sun, or in a distant galaxy. Part of the series Chemistry: Challenges And Solutions.
(Source: DCMP)
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. There's something dazzling in Ms. Frizzle's closet: a magical, light-powered pinball machine. To win at this game, the kids have to light up all six colors of the rainbow. Now the race is on, as the class shrinks down and zooms into the pinball machine. They will have to learn how to reflect all of the light to combine it into one beam to make their escape.
Solutions are uniform mixtures of molecules in which any of the phases of matter can be dissolved in another phase. Whether solids, liquids, or gases, solution chemistry is important because most chemical reactions, whether in the laboratory or in nature, take place in solutions. In particular, solutions with water as the solvent are the core of all biology. Extending the particle model of matter to solutions enables chemists to predict what will happen to a deep-sea diver who breathes different mixtures of gases or to the life forms in the ocean as carbon dioxide levels rise in the atmosphere. Part of Chemistry: Challenges and Solutions Series.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Phoebe is to participate in a slam-dunk during contest at half time of the big basketball game. The problem is Phoebe can't jump high enough. "If only gravity didn't pull on me." she moans. Never one to be tied down, Ms. Frizzle sends the class into space and turns the Bus into a planet — with adjustable gravity. The class finds basketball's a snap with low gravity and a riot with no gravity at all, but when there's way too much gravity, things get really heavy.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. It's Valentine's Day, and the class is selling light bulbs. When they stop at Ms. Frizzle's house to sell her one, they find that her battery-operated doorbell doesn't work. While looking for Ms. Frizzle to tell her the doorbell's broken, Wanda overhears her teacher talking on the telephone. "Ms. Frizzle has a boyfriend," says Wanda, "and he's on his way over to see her. We've got to fix the doorbell or she'll never know he's here." But first they have to figure out how the doorbell works.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. It's the International Show-and-Tell Competition, and Arnold and DA are representing Ms. Frizzle's class. Arnold brings a webbed hoop, left behind by his great-aunt Arizona Joan, the famous archaeologist. But he has no idea what it is. Using clues from the hoop and Joan's journal, the kids make educated guesses about its uses. To test their hypotheses, Ms. Frizzle turns the bus into a "Supposatron," a magical device designed to evaluate guesses. Can the kids solve the puzzle before Arnold and DA take the stage?
Two MIT students discuss the relationship between photography and science. They use various methods and instruments to explain how long exposure photography can help measure the speed of an airplane, observe the rotation of the earth, or create light paintings.
A research team has found that sweat is better than saliva and tears for noninvasive testing because it provides information much the same as blood. The team has developed Band-Aid-like sensors to collect health information from sweat. Other segments include the evidence that temperature determines sex for some animals, new methods for delaying ice and frost, and a historic discovery of 500 million-year-old fossils. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
In Bruce Logan's lab at Penn State University, researchers are working on developing microbial fuel cells (MFC) that can generate electricity while accomplishing wastewater treatment. In a project supported by NSF, they are researching methods to increase power generation from MFCs while at the same time recovering more of the energy as electricity. Through their research projects, Logan’s team has already proven that they can produce electricity from ordinary domestic wastewater.
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.
Mosquitoes spread several viruses, including Dengue, Chikungunya, Yellow Fever, and Zika. Health officials are developing various methods to help reduce the spread of infections. One of those methods is to produce genetically modified mosquitoes that, when released into the wild, reproduce with wild mosquitoes and cause their offspring to die.
Weather forecasting has changed from a day-to-day guess based on local observation to a scientific method dependent on global data collected accurately, in detail, and at set times. Traces the progression of forecasting from data-collection methods to regional centers for computer plotting and analysis to prediction of weather for the next five to seven days. Includes why forecasting is important.
Recapitulates and reviews the principal messages of the curriculum as it summarizes the functions and designs of the body's major systems and organs and the methods by which they interact. NOTE: Contains some nudity.
Predators play a fundamental role in maintaining the health of ecosystems. Research strongly supports the contributions of wolves in particular to the functioning and stability of the overall landscape. Students will learn about conservation methods to reintroduce and protect wolves in the wild. Part of the "Saving a Species" series.
At the end of the Yucatán Peninsula is the village Punta Allen. This fishing village is home to the Vigía Chico Fishermen's Cooperative, which practices conservation methods to help combat the effects of tourism. Part of the "Bios: Nature and Society" series.
Part of the animated "Johan, the Young Scientist" series. While waiting for his rechargeable batteries to charge up, Johan discovers in ScienScape that electricity is generated by cranking up a dynamo. Professor Hoo then sends him, Ani, and Moki to find how different power stations use different methods of generating electricity.
Every weekend small farmers around the country head to their local farmer’s markets to sell their fruits and veggies. Well guess what? There’s a new farmer in town: fish farmers. The growing demand for safe, healthy seafood has prompted a revival of the fish-farming industry in the United States.
When is it necessary to induce or augment a labor? Answers questions expectant parents may have about these procedures. Explores the advantages, risks, common medical methods, and natural alternatives available for both induction and augmentation. An obstetrician lists questions expectant parents should ask their caregivers. NOTE: Concludes with footage of a vaginal birth.
If everyone would just put more in the recycling bin instead of the trash can, the world would be a better place. Right? In this episode, host Joe Hanson discusses the current state of recycling and offers ways to enhance the current methods of recycling. Part of the "It's Okay to Be Smart" series.
The gray whale has survived the threat of extinction throughout the nineteenth and twentieth centuries. Today, these wonderful giants find refuge in the lagoons of Ojo de Liebre and San Ignacio. These sanctuaries also promote responsible tourism and sustainable fishing methods. Part of the "Bios: Nature and Society" series.
Showing collections 1 to 7 of 7
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
