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This activity demonstrates optical properties of water: that different constituents in water affect the transmission, absorption, and scattering of different colors in the visible light spectrum. Inexpensive, off-the-shelf components are used to... (View More) build a light sensor and source, creating a simple spectrophotometer that can measure light absorption. In the second part of this activity, principles of ocean color remote sensing are applied to measure reflectance. Using components that are clearly visible allows students to configure them in different ways. Playing with the instrument design gives students a practical understanding of spectrophotometers, in-water optics, and remote sensing. As an extension of this concept, students are encouraged to think about how ocean color is used to estimate the concentration of chlorophyll to infer phytoplankton abundance, colored dissolved organic matter, and suspended sediments. (View Less)
In this video clip, viewers learn about the cryosphere - all of Earth's frozen structures including sea ice, ice caps, and permafrost. Understanding changes in the cryosphere provides scientists with valuable information about the past, present, and... (View More) future of the planet. ICESat-2 is a satellite designed to help scientists learn more about Earth's ice and the role ice plays in climate. NASA eClips™ are short, relevant educational video segments. These videos inspire and engage students, helping them see real world connections. The Real World series of NASA eClips connects classroom mathematics to 21st century careers and innovations and are designed for students to develop an appreciation for mathematics through real-world problem-solving. (View Less)
In this video clip, viewers learn how NASA's SAGE III instrument is providing valuable information to help understand how our global Earth system is changing. Find out the difference between good ozone and bad ozone. Learn about the health problems... (View More) that a small percent of our atmosphere, or only a few parts per billion, can create. NASA eClips™ are short, relevant educational video segments. These videos inspire and engage students, helping them see real world connections. The Real World series of NASA eClips™ connects classroom mathematics to 21st century careers and innovations and are designed for students to develop an appreciation for mathematics through real-world problem-solving. (View Less)
Derived from the Science on a Sphere film entitled "Water Falls," this short (2:50) video presents basic information on the percentage, allocation, and distribution of Earth's usable water.
Images from NASA satellites showing atmospheric phenomena such as cyclones, hurricanes, high/low pressures, clouds and the jet stream are featured in this 10-minute planetarium show.
This Science On a Sphere video and docent show (script and playlist), explores factors that render Earth habitable and influence Earth's energy budget. The video gives an overview of NASA's Search for "Goldilocks Planets" - planets that are not too... (View More) hot or too cold for liquid water. (View Less)
This video is narrated by NASA scientist Peter Griffith who explains fast and slow carbon cycling on Earth. A banana is an example of fast, young carbon. A chunk of coal is an example of old, slow carbon. Carbon dioxide and vegetation on land seen... (View More) from space by satellites show the annual cycle: as plants grow during spring and summer they draw carbon dioxide out of the air during photosynthesis. When they die or go dormant during winter, carbon dioxide levels rise in the atmosphere. Burning fast or slow carbon to generate power or heat releases black carbon, also called soot which can be seen from space. ClimateBits videos are designed for Science On a Sphere (SOS) and also available on YouTube. Links are provided to more information for this topic from the main ClimateBits website (see related & supplemental resources). (View Less)
This series of infographics was created to supplement the Here, There, Everywhere (HTE) exhibit and connects cross-cutting science content (Earth and planetary sciences and astrophysics) with everyday phenomena, helping to demonstrate the... (View More) universality of physical laws and the connection between our everyday world and the universe as a whole to non-experts. (View Less)
Students use a dipole magnet and compass to model and map Earth’s magnetic field. They then induce a magnetic field to represent a Ring Current in order to observe the response to a fluctuating electric current caused by a solar storm. The lesson... (View More) includes background information, procedures, worksheets, answer keys and graphics. Next Generation Science Standards (NGSS) are also identified. (View Less)
This video explains air quality and specifically describes Earth's air pollution seen from space by satellites. As the world's largest environmental health risk, air pollution is important to understand, monitor, and reduce. Over the past 10 years,... (View More) air pollution has reached epic levels in some places in the world, even as air quality has improved in other places. ClimateBits videos are designed for Science On a Sphere (SOS) and also available on YouTube. Links are provided to more information for this topic from the main ClimateBits website (see related & supplemental resources). (View Less)