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RESOURCE	GRADE LEVEL	MEDIA TYPE
Acid Lake Add acidity to a healthy lake and see what happens to the plants and animals in this interactive activity adapted from EcoKids.	3-8	Interactive
Air Quality Index In this interactive activity adapted from "Air Quality Index: A Guide to Air Quality and Your Health" by the U.S. EPA, learn about common pollutants in the air we breathe, their health effects, and how their levels are reported.	6-12	Interactive
All Systems Are Go Test your knowledge of the digestive, respiratory, and other human body systems in this interactive game from Kinetic City. Race the clock to put Arnold's organs back into his body one system at a time.	5-8	Interactive
American Chestnut Tree This annotated slideshow adapted from KET's Electronic Field Trip to the Forest illustrates how blight decimated the American chestnut tree and the methods scientists use to identify and pollinate the remaining trees to create blight-resistant trees.	6-12	Interactive
Amplitude This interactive activity adapted from the University of Utah's ASPIRE Lab shows how a pendulum's amplitude changes as you set it swinging from different distances from its axis, and how the amplitude of a sound wave changes as you adjust the volume.	6-12	Interactive
Analyzing an Ecosystem In this interactive activity adapted from the University of Alberta, identify the living and nonliving things in an ecosystem. Then look further at the living things to identify the producers, the consumers, and examples of mimicry.	3-8	Interactive
Animal Classification Game Learn about classes of animals and test your ability to identify animals as mammals, birds, reptiles and more in this interactive activity adapted from Sheppard Software.	4-8	Interactive
Animal Cloning 101 Learn about clones and explore the methods scientists use to create clones in the lab in this interactive activity from the Dolan DNA Learning Center.	9-12	Interactive
Antarctic Ecosystem In contrast with its largely lifeless interior, the Antarctic coastal marine environment supports a vibrant and diverse ecosystem. Explore the region's living bounty in this interactive activity adapted from the Woods Hole Oceanographic Institution.	5-12	Interactive
Antarctic Food Web Game In this interactive game adapted from the Bigelow Laboratory for Ocean Sciences, build a food web that illustrates the flow of energy in an Antarctic ecosystem and the relationships between predators and prey.	5-8	Interactive
Arctic Atlas In this interactive atlas adapted from UNEP/GRID-Arendal, explore different environmental features of the Arctic. Select from a list of themes to customize your map, then zoom in to take a closer look at one of six featured regions.	6-12	Interactive
Arctic Ecosystem Despite seemingly inhospitable conditions, the Arctic environment has a vibrant and diverse ecosystem. Explore the life that thrives in this region in this interactive activity adapted from the Woods Hole Oceanographic Institution.	5-12	Interactive
Arctic Sea Ice Satellite Observations In this interactive activity produced for Teachers' Domain, learn how Arctic sea ice has changed over the past 25 years in terms of maximum winter extent, concentration, and the timing of breakup each spring.	6-12	Interactive
Art That Tells a Story This interactive activity, adapted from material provided by the ECHO partners, presents nine art objects and shows how they can reveal different types of stories.	4-6	Interactive
Astronomical Images in Different Wavelengths Visible light is just one portion of the electromagnetic spectrum that a telescope may detect. This collection of images produced for Teachers' Domain features radio wave, infrared, visible light, and X-ray images of distant stars and galaxies as well as images of the telescopes designed to detect the various wavelengths of radiation.	6-12	Interactive
Atmospheric Oxygen In this feature, adapted from Interactive NOVA: "Earth," students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.	3-5	Interactive
The Atom In this interactive activity from ChemThink, take a closer look at atomic structure, properties, and behaviors.	6-12	Interactive
Backyard Wildlife Interactive Squirrels and chipmunks are just two of the animals you might see. Backyard Wildlife, an original KET video, encourages children to explore the world outside their back door.	Pre-K-1	Interactive
Bandwidth and Data Conversion This interactive activity adapted from the Wisconsin Online Resource Center describes the factors that affect the speed of data transfer in computer networking systems and some of the techniques used to increase the data capacity of these systems.	9-12	Interactive
Biodiversity in the Dzangha-Sangha Rain Forest In this interactive activity from the American Museum of Natural History, play "connect the dots" and discover the connections between the people, animals, and plants in three habitats of the Dzanga-Sangha rain forest in the Central African Republic.	5-8	Interactive
Biomes This interactive resource adapted from NASA describes the different temperature, precipitation, and vegetation patterns in seven biomes: coniferous forest, temperate deciduous forest, desert, grassland, rainforest, shrubland, and tundra.	3-12	Interactive
KET Image Bank: Birds Browse through thumbnail images of native birds in this KET Image Bank interactive catalog. Clicking a thumbnail will take you to a larger image for download.	K-12	Interactive
Blood Flow and Thermoregulation In this interactive activity adapted from the University of Alberta, learn about the ways your body can regulate its temperature.	7-12	Interactive
Body Control Center Throughout the day, your nervous system monitors and makes endless adjustments to your body's basic systems -- all to keep you alive. This interactive feature illustrates the complexity of such a task.	6-8	Interactive
Bowhead Whaling and Its Impact This interactive activity, adapted from material provided by the ECHO partners, explores the history of whaling in the Arctic and introduces a landmark study of whale populations.	6-9	Interactive
Build-a-Fish In this interactive activity from Shedd Aquarium, build a fish and then release it into the reef to search for food and evade predators. Try different combinations and observe how each kind of fish has unique adaptations that help it survive in its habitat.	6-8	Interactive
Cancer Nanotech This interactive slideshow adapted from NOVA scienceNOW shows some of the nanoscale structures that scientists are using in the experimental diagnosis, treatment, and prevention of cancer.	9-12	Interactive
Careers in Agricultural and Environmental Technologies This interactive activity produced for Teachers’ Domain explores several career paths available in agricultural and environmental technologies.	6-12	Interactive
Careers in Engineering Technologies This interactive activity produced for Teachers’ Domain explores various career paths in engineering technologies.	6-12	Interactive
Careers in Environmental Health This interactive activity produced for Teachers’ Domain examines some of the career opportunities available in the environmental public health field and describes how the work of professionals in this field directly impacts human health.	9-12	Interactive
Cell Division In this interactive activity adapted from the Exploratorium, explore the step-by-step process by which an animal cell divides to make more cells.	7-10	Interactive
Cell Explorer Explore the parts of a virtual animal cell in this interactive activity adapted from the Exploratorium. Learn about various cell structures and the roles they play in cell division, cellular respiration, and protein synthesis.	7-12	Interactive
Cell Membrane: Just Passing Through This interactive feature describes some of the most important structures and functions of the cell membrane.	6-12	Interactive
Cell Transcription and Translation In this interactive activity adapted from the University of Nebraska, learn how and where transcription and translation occur within a cell and observe both processes in detail.	9-12	Interactive
Cellular Service The goal of this interactive game is to keep a group of target cells healthy by using blood to deliver and take away various substances to and from the cells.	6-8	Interactive
The Chandra X-Ray Observatory Learn about the Chandra X-Ray Observatory's telescope system, science instruments, and spacecraft system in this interactive activity adapted from NASA.	9-12	Interactive
Chemical Bonds This interactive activity developed for Teachers' Domain demonstrates how attractive forces between atoms create chemical bonds, resulting in the formation of molecules and compounds.	9-12	Interactive
Chemical Hazards at Home In this interactive activity from the National Library of Medicine, investigate some of the chemical hazards commonly found in homes.	3-5	Interactive
Circular Motion In this interactive activity featuring videos adapted from the Rutgers PAER Group, observe examples of circular motion. Can you find a common reason why the objects and people presented move in a circle?	6-12	Interactive
City Farm In this interactive game from WGBH, players learn about sustainable practices by growing crops, protecting them against unforeseen problems, and determining how best to conserve resources.	5-10	Interactive
Climate Wisconsin: Ice Cover Ice cover data and long term trends for Lake Mendota and Lake Mendota in Madison, WI can be explored in this interactive resource produced by the Wisconsin Educational Communications Board.	6-12	Interactive
Climate Wisconsin: Temperature Change Investigate observed and projected average annual temperature change in Wisconsin in this interactive resource produced by the Wisconsin Educational Communications Board.	6-12	Interactive
Closed-Loop Systems This interactive activity adapted from the Wisconsin Online Resource Center explores the processes, controls, and components that make up a typical closed-loop system used in automated manufacturing.	9-12	Interactive
Cloud Types This interactive resource, adapted from NASA's S'COOL Project Tutorial, explains how you can classify and identify various types of clouds.	3-12	Interactive
Clues from Past Climates In this interactive produced by ThinkTV, learn how scientists discover clues to past climates that lie hidden in the natural environment, as well as in some surprising historical documents.	6-12	Interactive
Coastal Geological Processes This interactive resource adapted from the National Park Service describes the many forces that affect shorelines, including tides, weathering, erosion, and deposition.	6-12	Interactive
Collisions on an Air Track In this interactive activity adapted from the University of Toronto, observe the effect of mass on momentum in elastic and inelastic collisions.	9-12	Interactive
Compare the Poles Explore the defining features of the Arctic and the Antarctic in this interactive activity adapted from the Woods Hole Oceanographic Institution.	3-12	Interactive
Comparing Fractions: Bubble Gum Blowing Contest In this interactive activity adapted from Anneberg Learner’s Teaching Math Grades 3–5, compare fractions on number lines to determine which class of students wins bubble-gum-blowing contests.	3-5	Interactive
Compost Office This interactive activity from Keep America Beautiful, Inc. uses illustrated text and a game to explain why it is important to compost, the science involved, and the perfect recipe for decomposition.	3-8	Interactive
Computer Networks This interactive activity adapted from the Wisconsin Online Resource Center describes types of computer networks and how they function.	9-12	Interactive
Continental Divide: The Breakup of Pangaea Examine geological evidence found in fossils, rock deposits, and ancient mountains that supports the theory of continental drift in this interactive activity adapted from the Exploratorium.	6-12	Interactive
Cooking with Sugar Find out about the chemistry of candy and how sugar reacts at different temperatures to become fudge, caramel, lollipops, and more in this interactive activity adapted from the Exploratorium.	5-8	Interactive
Covalent Bonding This interactive activity from ChemThink takes a closer look at a covalent bond—how it is formed and how the sharing of two electrons can keep atoms together.	9-12	Interactive
Cow's Eye Dissection In this interactive activity adapted from the Exploratorium, watch videos of a cow eye dissection and see how an eye works.	6-12	Interactive
Create a DNA Fingerprint Learn DNA profiling, the technique police use to catch the guilty and free the innocent. From NOVA: "The Killer's Trail" Web site.	6-12	Interactive
Dance of Development Watch the "dance" of development as a zebrafish egg divides and differentiates on its way to becoming an embryo in this interactive activity adapted from the Exploratorium.	9-12	Interactive
De-Twinkling the Stars Find out why stars twinkle and adjust a telescope to sharpen a star's image in this interactive activity adapted from NASA.	9-12	Interactive
Deforestation in Bolivia This visualization adapted from NASA features two satellite images from 1984 and 2000 that show the dramatic deforestation of the Bolivian rainforest.	6-12	Interactive
Design a Liquid Fuel Rocket Engine Learn about rocket engines, and then design and launch a liquid fuel rocket in this interactive activity adapted from NASA.	9-12	Interactive
Design an Ion Engine Learn about ions and then design an ion engine to maximize thrust in this interactive activity adapted from NASA.	9-12	Interactive
Design: Building a House This collection of images follows the process of building a house from cutting the trees and making the bricks to finishing construction.	K-8	Interactive
The Disappearing Aral Sea This visualization adapted from NASA features satellite images showing how more than 60 percent of the Aral Sea has disappeared during the last 30 years.	6-12	Interactive
Disappearing Milk A magician pours milk into a glass, but when he turns the glass upside down, nothing comes out. How does he do it? Discover the science behind the "magic" in this video adapted from the American Society of Mechanical Engineers.	4-12	Interactive
Discovering Antarctica Take a guided tour of Antarctica by watching brief video segments of its landscape and wildlife in this interactive activity adapted from the British Antarctic Survey.	K-8	Interactive
Dissolving Salts in Water In this interactive activity adapted from Iowa State University, design and carry out an experiment: dissolve salts in water, see how different ionic compounds produce different reactions, and observe the resulting changes in temperature.	8-12	Interactive
DNA Extraction This interactive activity adapted from the University of Nebraska's Plant and Soil Sciences eLibrary illustrates how DNA, which is normally locked inside of cells, is extracted from living tissue.	9-12	Interactive
DNA Libraries This interactive resource adapted from the Dolan DNA Learning Center explores the different types of DNA libraries used to store and access genetic information.	9-12	Interactive
DNA Sequencing This interactive activity adapted from the Dolan DNA Learning Center looks at two techniques used to sequence DNA: the Sanger method and an automated process based on the Sanger method.	9-12	Interactive
Documenting Glacial Change This collection of comparative glacier images adapted from the National Snow and Ice Data Center shows substantial changes in five Alaskan glacier positions over periods of 60 to 100 years.	3-12	Interactive
Dolly Garza: A Tlingit and Haida Scientist In this interactive resource adapted from Raven Radio/KCAW, listen to biologist Dr. Dolly Garza as she explores the sea otter population of Sitka, Alaska, from the perspectives of her tribal heritage and her Western education.	3-12	Interactive
Dress for the Weather Learn more about the seasons and help George dress for the right time of year with this interactive game.	Pre-K-1	Interactive
Dust Explosion In these videos adapted from the Journal of Chemical Education, observe how a material that is usually hard to ignite becomes very flammable when its particles are suspended in air.	6-12	Interactive
Early Exploration of Antarctic Climate In this interactive feature produced by ThinkTV, view historic photos of Admiral Byrd’s expeditions to Antarctica, where he was one of the first explorers and scientists to record weather and climate observations.	6-12	Interactive
Earth in Motion: Seasons This interactive activity from the Adler Planetarium explains the "reasons for the seasons." Featured is a game in which Earth must be properly placed in its orbit in order to send Max, the host, to different parts of the world during particular seasons.	3-8	Interactive
Earth’s Albedo and Global Warming In this interactive activity adapted from NASA and the U.S. Geological Survey, learn about Earth's albedo (the ratio of reflected vs. incident solar radiation), how pollution alters albedo, and how ice-albedo feedback may accelerate global warming.	6-12	Interactive
Electric Charges Interact Experiment with electric charges to find out how they interact in this interactive activity adapted from NASA.	6-12	Interactive
Energy Flow This feature, adapted from Interactive NOVA: "Earth," follows the path of energy as it is transferred via the food chain from one type of organism to another.	K-5	Interactive
Energy in a Roller Coaster Ride See potential energy convert to kinetic energy in this interactive activity from WGBH that shows a roller coaster in action.	3-12	Interactive
Environmental Hazards on the Farm This interactive activity adapted from the National Library of Medicine identifies health hazards found on farms.	6-8	Interactive
Environmental Hazards at the Coast This interactive activity adapted from the National Library of Medicine identifies environmental health hazards in coastal areas.	6-8	Interactive
Environmental Hazards in the City This interactive activity adapted from the National Library of Medicine identifies environmental health hazards in a typical urban or suburban community.	6-8	Interactive
Look At Me Now Children go through countless physical changes during the first year of their life. Look At Me Now, an original KET interactive, depicts a year in the life of a baby through photos, and highlights the changes we experience while growing.	Pre-K-1	Interactive
Exploration of Comets In this interactive activity from NASA, explore the anatomy and life cycle of a typical comet and learn about several comet missions.	6-12	Interactive
Explore Alaska's Volcanoes In this interactive activity adapted from the University of Alaska, explore four of Alaska's many volcanoes using photographs, computer simulations, and three kinds of satellite images.	6-12	Interactive
Explore Colonial Boston Explore the town of Boston and its natural and human-made features in colonial times in this interactive activity produced by WGBH and featuring materials from the Norman B. Leventhal Map Center at the Boston Public Library.	3-5	Interactive
Exploring Tidepools In this interactive activity adapted from the National Park Service, learn about tidepools and then try to identify the organisms that live there.	3-5	Interactive
Fishing for Safe Food This interactive game adapted from the U.S. Environmental Protection Agency is a fun way to learn which types of fish contain low levels of mercury and are safe to eat and which contain high levels and should be avoided.	3-8	Interactive
Frequency In this interactive activity adapted from the University of Utah's ASPIRE Lab, investigate frequency in terms of trampoline jumps, pendulum swings, and electromagnetic waves.	6-12	Interactive
From Ridge to Reef: Adapting to a Changing Climate Explore Pacific high island and atoll ecosystems, learn about the threats to island resources and residents, and discover how communities are preserving their future, in this interactive activity adapted from the Micronesia Conservation Trust.	9-12	Interactive
From Seed to Fruit Interactive Children get a glimpse of what happens underground in the life of a cherry tomato plant in this original animated video from KET.	Pre-K-1	Interactive
Gallery of Visual Illusions Are your eyes playing tricks on you? Discover more about eyesight and the brain as you test your eyes with these visual illusions adapted from the University of Washington's Neuroscience for Kids Web site.	5-12	Interactive
Gas Properties In this interactive simulation adapted from University of Colorado’s Physics Education Technology project, change parameters and discover how the properties of a gas vary in relation to each other.	6-12	Interactive
Gel Electrophoresis This interactive activity from the Dolan DNA Learning Center illustrates the process of gel electrophoresis, in which DNA fragments are separated by size as they migrate at different rates through a gel matrix.	6-12	Interactive
Gene Cloning This interactive activity adapted from the University of Nebraska's Library of Crop Technologies details the steps involved in producing clones of genes that can then be used to transform the characteristics of an organism.	9-12	Interactive
Generating Electrical Voltage This interactive resource adapted from the Wisconsin Online Resource Center illustrates how electrical voltage is generated through a process called magnetic induction and describes some of the factors that affect the magnitude of the voltage produced.	9-12	Interactive
Generation of Alternating Current This interactive resource adapted from the Wisconsin Online Resource Center illustrates the parts of an electrical generator and shows how they function to produce alternating current.	9-12	Interactive
Geometric Optics This interactive simulation adapted from the University of Colorado's Physics Education Technology project illustrates how lenses refract light to form images. Manipulate the object, screen, lens, and focal length and observe how the image adjusts.	6-12	Interactive
Glaciers Featuring images of glacier formations, this interactive resource adapted from the National Park Service explains what glaciers are, where they are found, how they form, and how they move.	6-12	Interactive
Global View of the Seasons This interactive activity produced for Teachers' Domain features satellite data of Earth's seasonal cycles. Visualizations and comparative still images reveal how successfully plants are photosynthesizing at different times of the year.	6-12	Interactive