New Science |
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lightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
lightning strike, cloud to cloud, static electricity discharge, powerlines, thunderstorm, mesa, arizona |
lightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
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rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
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luna moth, insect, lepidoptera, arthropod, invertebrate, poinsett state park, south carolina |
julia helconian butterfly, insect, lepidoptera, arthropod, invertebrate, desert botanical garden, arizona |
arizona sister butterfly, insect, lepidoptera, arthropod, invertebrate, coronado national forest, arizona |
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dinosaur track fossils, dilophosaurus, early jurassic, theropod, navaho nation, arizona |
dinosaur track fossils, dilophosaurus, early jurassic, theropod, navaho nation, arizona |
dinosaur track fossils, dilophosaurus, early jurassic, theropod, navaho nation, arizona |
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artist's palette, badlands, mojave desert, death valley national park, california |
badwater basin, lowest elevation in north america, salt flats, death valley national park, california |
badwater basin, lowest elevation in north america, salt flats, death valley national park, california |
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petrified wood, late triassic, petrified forest national park, arizona |
petrified wood, late triassic, petrified forest national park, arizona |
petrified wood, late triassic, petrified forest national park, arizona |
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saber tooth tiger fossil skeleton, page museum, pleistocene, la brea tar pits, los angeles, california |
dinosaur track fossils, dilophosaurus, early jurassic, theropod, navaho nation, arizona |
volcanic caldera lake, reflection, wizard island, cinder cone, crater lake national park, oregon |
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meyers beach sea stacks, cape sebastion scenic area, pacific coast, oregon |
hoover dam, hydroelectric power, arizona, nevada, colorado river, lake mead. renewable resources, energy |
turbine generators, hydroelectric power, glen canyon dam, arizona, colorado river, renewable resources, energy |
Energy Resources: See the new Energy page here. |
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theodore roosevelt dam, hydroelectric power, arizona, renewable resources, energy |
theodore roosevelt dam, hydroelectric power, arizona, renewable resources, energy |
theodore roosevelt dam, hydroelectric power, arizona, renewable resources, energy |
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theodore roosevelt dam, hydroelectric power, arizona, renewable resources, energy |
oil well pumper, fossil fuel, nonrenewable resources, energy |
oil well pumper, fossil fuel, nonrenewable resources, energy |
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oil well pumper, fossil fuel, nonrenewable resources, energy |
wind turbines, renewable resources, energy, texas high plains |
wind turbines, renewable resources, energy, texas high plains |
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wind turbines, renewable resources, energy, texas high plains |
wind turbines, renewable resources, energy, texas high plains |
wind turbines, renewable resources, energy, texas high plains |
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oil platforms, fossil fuel, nonrenewable resources, energy |
oil platforms, fossil fuel, nonrenewable resources, energy |
oil platforms, fossil fuel, nonrenewable resources, energy |
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coal pile and chute, fossil fuel, nonrenewable resources, sedimentary rock, energy |
wind driven well pump, wind power, renewable energy, natural resources |
brasfield lake chesdin dam, hydroelectric power, appomattox river, renewable energy, natural resources |
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brasfield lake chesdin dam, hydroelectric power, appomattox river, renewable energy, natural resources |
brasfield lake chesdin dam, hydroelectric power, appomattox river, renewable energy, natural resources |
brasfield lake chesdin dam, hydroelectric power, appomattox river, renewable energy, natural resources |
Sun, Sunrise and Sunset |
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sun, sunrise, morning, east |
sun, sunrise, morning, east |
sun, dawn, atlantic, coast, sunrise, shore, tide, morning, east |
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dawn, atlantic, coast, sunrise, shore, tide, morning, east |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
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dawn, atlantic, coast, sunrise, shore, tide, morning, east |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
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sun, dawn, atlantic, coast, sunrise, shore, tide, morning, east |
sun, dawn, atlantic, coast, sunrise, shore, tide, morning, east |
sun, dawn, atlantic, coast, sunrise, shore, tide, morning, east |
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currituck sound sunset, reflection, light refraction, clouds, west |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
dawn, atlantic, coast, sunrise, shore, tide, morning, east |
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currituck sound sunset, reflection, light refraction, clouds, dusk |
currituck sound sunset, reflection, light refraction, clouds, west |
currituck sound sunset, reflection, light refraction, clouds, west |
Water and Waves |
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water drop, surface tension |
breaking wave, breaker, coast, crest, trough, surf |
breaking wave, breaker, coast, crest, trough, surf |
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breaking wave, breaker, coast, crest, trough, surf |
breaking wave, breaker, coast, crest, trough, surf |
breaking wave, breaker, coast, crest, trough, surf |
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breaking wave, breaker, coast, crest, trough, surf |
breaking wave, breaker, coast, crest, trough, surf |
breaking wave, breaker, coast, crest, trough, surf |
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breaking wave, breaker, coast, crest, trough, surf |
ripples, water, sunlight, reflection |
water droplets on a lilly pad, water, sunlight, reflection |
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ripples, water, sunlight, reflection |
ripples, water, sunlight, reflection |
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water drop, surface tension |
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Weather |
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ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
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ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, mesa, arizona |
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ightning strike, cloud to cloud, static electricity discharge, thunderstorm, chesterfield, virginia |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, chesterfield, virginia |
ightning strike, cloud to cloud, static electricity discharge, thunderstorm, chesterfield, virginia |
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lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
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lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
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lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
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lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
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lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to cloud, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
lightning strike, cloud to ground, static electricity discharge, thunderstorm, guadalupe mountains national park, texas |
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rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
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rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
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rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |
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fog, clouds, condensation, maine coast, atlantic shore |
fog on a playground, clouds, condensation |
fog on a playground, clouds, condensation |
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fog on a ball field, clouds, condensation |
fog on a ball field, clouds, condensation |
trees in fog, clouds, condensation, humidity |
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fog on a ball field, clouds, condensation |
raindrop, dew, precipitation, water drop, water cycle, surface tension |
raindrops, precipitation, water drop, water cycle, surface tension |
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flower with raindrops, precipitation, water drop, water cycle, surface tension |
raindrops, precipitation, water drop, water cycle, surface tension |
raindrops, dew, precipitation, water drop, water cycle, surface tension |
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raindrop, precipitation, water drop, water cycle, surface tension |
raindrop, precipitation, water drop, water cycle, surface tension |
raindrop, precipitation, water drop, water cycle, surface tension |
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cirrus clouds, water cycle, condensation |
cirrus clouds, water cycle, condensation |
hole in the clouds, water cycle, condensation |
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cumulus and cirrus clouds, water cycle, condensation |
cumulus and cirrus clouds, water cycle, condensation |
desert cumulus and cirrus clouds, water cycle, condensation, saguaro national park |
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approaching storm, cumulonimbus and cumulus clouds, guadalupe mountains |
approaching storm, cumulonimbus and cumulus clouds, guadalupe mountains |
approaching storm, cumulonimbus and cumulus clouds, guadalupe mountains |
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approaching storm, cumulonimbus and cumulus clouds, guadalupe mountains |
approaching storm, cumulonimbus and cumulus clouds, guadalupe mountains |
rainbow, colors, visible light spectrum, water droplets, atmospheric moisture, phenomenon |