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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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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 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
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
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
Greenland Ice Sheet Project 2: A Record of Climate Change Using images and graphs, this interactive resource illustrates scientists' efforts to study Earth's climatic history for the last 250,000 years by drilling into the Greenland Ice Sheet and examining ice cores. Adapted from the Wright Center for Science Education, Tufts University.	9-12	Interactive
Heat Transfer In this interactive activity adapted from the Wisconsin Online Resource Center, learn how heat can be transferred in one of three ways: conduction, convection, and radiation.	5-12	Interactive
The Hydrologic Cycle View the five processes of the hydrologic cycle in this interactive resource adapted from NASA in which animations illustrate condensation, precipitation, infiltration, runoff, and evapotranspiration.	3-8	Interactive
Infrared Gallery How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.	3-12	Interactive
Is the Moon Geologically Active? Learn what lunar surface features tell us about the Moon's geological activity in this activity adapted from NASA.	9-12	Interactive
The Jet Stream and Horizontal Temperature Gradients Explore and manipulate the relationship between wind speed and temperature gradients in this interactive activity adapted from the University of Wisconsin-Madison.	6-12	Interactive
Life Cycle of a Seed Plant In this interactive activity adapted from the University of Alberta, learn about each step in the life cycle of a seed plant.	6-12	Interactive
Light Pollution In this interactive activity adapted from the National Park Service, learn how light pollution affects the night sky, animals, and humans, and then explore several possible solutions.	3-8	Interactive