Found 10 - 20 results of 37 programs matching keyword "density of salt water"
Join exhibit developer Charles Sowers as he demonstrates Watch Water Freeze, an exhibit designed to encourage noticing. Patience with this piece is rewarded with breathtaking patterns of ice crystals. Viewed through a polarizing filter, the beautiful colors and crystalline structures of Watch Water Freeze have inspired countless museum visitors to reach for their cameras. Is water ice present or absent in a crater near the moon's south pole? NASAs Lunar CRater Observing and Sensing Satellite (LCROSS) mission is seeking a definitive answer. Join Exploratorium staff for a special Webcast featuring live coverage of LCROSS crashing into the moon! Our team will be broadcasting live from the 36" Refractor Telescope at Lick Observatory on Mt. Hamilton, where well watch the impact and investigate how this intentional crash could reveal the existence of water ice. An introduction to the Ice Balloons activity, in which learners explore globes of frozen water and learn how to ask and then answer 'investigable' questions. A detailed demonstration of how to do the Ice Balloons activity, including a discussion of materials needed and strategies for getting learners to ask and then investigate questions about what they are seeing. The science and pedagogy behind this activity, including a discussion of concepts such as density, temperature, thermal conductivity, center of mass, freezing point depression, heat capacity, and the characteristics of the states of water, water vapor, and ice. Also describes strategies for observing, asking questions, and then choosing a question to investigate further. A short visit with the inspiring Jane Wolff. She is an artist, landscape architect, educator, and author of 'Delta Primer: a field guide to the California Delta.' You might be surprised to know that water is one of the most scarce resources in Antarctica. Adelie penguins contemplate the water near a photographer at a crack in the ice. Greenland Ice Sheet shots of melting To understand how Earths climate system has changed over time, scientists need to find, develop and use natural recorders of temperature and precipitation. One natural thermometer comes in the form of alkenones: trans-fats produced by certain algae.