1
Published in 2017
Find out more about how our sun's position in the sky changes due to Earth's rotation, revolution, and tilt. Learn from the experts -- Dr. Alex Young and Dr. Nicki Viall explain these connections so students understand patterns within the Earth-sun relationship.
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2
By TED-Ed
Published in 2013
Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and discusses who is using it and to what ends.
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3
Published in 2013
YouTube video describing what it would be like if the moon orbited the Earth at the same distance as the ISS.
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4
PDF sheets of moon phases.
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5
The world is a watery place. But just how much water exists on, in, and above our planet? This set of data and tables show the amounts of water on Earth.
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6
Published in 1994
This movie is of the 1994 solar eclipse. It was taken by Fred Espenak of the NASA Goddard Space Flight Center Laboratory for Extraterrestrial Physics.
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7
By TED-Ed
Published in 2013
While the Earth's oceans are known as five separte entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological features. Scott Gass reminds us of the influence humans have on the...
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8
Watch as a giant black spot appears to move across Earth's surface, and listen to The Science Channel's explanation of what's happening and why.
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9
The following animation shows both the helicentric model and geocentric model with three objects: the Sun (yellow), Earth (blue) and Mars (red). Both models produce the same effect as viewed from the Earth.
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10
Use this effective interactive to show how the sunlight varies throughout the year for various locations. You can vary observer's latitude, season, perspective, sunbeam spread, and sunlight angle.
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11
By TERC
Flash animation for the Coriolis Effect, the apparent deflection of a wind or current due to earth rotation. One animation shows a plane flying from Anchorage, Alaska toward Miami, Florida. In the second animation, a plane takes off from Tierra del Fuego toward Rio de Janeiro. In both cases, the...
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12
Published in 2018
"Google recently unveiled a new feature, """"Waterways from Earth,"""" on Google Earth. The program relies on NASA and NOAA images to show our dynamic planet's waterways from space. This article tells more about the science and stories behind those images."
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13
By TED-Ed
Published in 2013
How can the shadow of the tiny moon eclipse the sight of the gargantuan sun? By sheer coincedence, the dsc of the sun in 400x larger than the disc of the moon, but it's 390x farther from Earth -- which means that when they align just right, the moon blocks all but the sun's glowing corona. Andy...
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14
By TED-Ed
Published in 2015
"The Arctic may seem like a frozen and desolate environment here nothing ever changes. But the climate of this unique and remote region can be both an early indicator of the climate of the rest of the Earth and a driver for weather patterns across the globe. William Chapman explains why scientists...
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15
Published in 2017
"For a few minutes on August 21, the sun will disappear behind the moon in a total solar eclipse visible from a streak of locations across the United States. Now, for those who cannot view the eclipse from its """"path of totality,"""" or even for those who just want to preview the live event, NOAA...
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16
Published in 2016
On March 9, a total solar eclipse was perfectly visible in Indonesia. Alaska, Hawaii, parts of southeast Asia and some of Australia got a partial view. The rest of us, alas, were out of luck. But now you can enjoy the view from another angle — the solar eclipse as seen from space. The Himawari...
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