Found 10 - 20 results of 35 programs matching keyword "density of salt water"
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 Earth’s 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. Learn more about the new mission to Mars! The Mars Phoenix Lander touched down on the Red Planet on Sunday, May 25, 2008, and began collecting data. Phoenix is designed to study the history of water and search for complex organic molecules in the Martian arctic's ice-rich soil. Join Exploratorium Senior Scientist Paul Doherty as he walks us through the mission and shows us the first pictures that the Phoenix Lander sends back! In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: rocks!