Found 100 - 110 results of 155 programs matching keyword "dry ice sublimates"


Science from the Poles:  Life at the Poles: Enzymes and Proteins (Webcast)
Running Time:
00:24:38
Join Exploratorium biologist Karen Kalumuck as she experiments with enzymes and proteins and shows at what temperatures they function best.

Project: Science from the Poles | Browse All

Date: December 7, 2006
Format: Demonstration / Activity
Category: Popular Science
Subject(s): Life Sciences/Biology

Keywords: enzymes, proteins, ice, temperature


Real: 256K  
Windows Media: 256K  
Science from the Poles:  Once & Future Climate, Part 2: The Present (Webcast)
Running Time:
00:25:43
Join Exploratorium physicists Paul Doherty and Stephanie Chasteen as they examine the past, present, and future of climate change. Watch as Paul and Stephanie demonstrate how you can look at a slice of climate from the past, what a sediment core might look like, and the secrets hidden in an ice balloon!

Project: Science from the Poles | Browse All

Date: December 2, 2006
Format: Demonstration / Activity
Category: Popular Science
Subject(s): Geology/Earth Science

Keywords: climate change, global warming, temperature, atmosphere, tree rings, sediment cores, ice cores, oceans, sedimentation, ice balloon, cake, ping pong balls, sand


Real: 256K  
Windows Media: 256K  
Science from the Poles:  Global Warming 101: More Questions and Answers (Webcast)
Running Time:
00:09:55
More quick answers to the most frequently asked questions about global warming.

Project: Science from the Poles | Browse All

Date: November 30, 2006
Format: Demonstration / Activity
Category: Popular Science
Subject(s): Geology/Earth Science

Keywords: global warming, climate change, ice, greenhouse gases, carbon dioxide


Real: 256K  
Windows Media: 256K  
Science from the Poles:  Live Chat from McMurdo Station (Webcast)
Running Time:
00:28:33
What do the kids want to know? Join Kirk Bell's fifth grade class (from Children's Day School in San Francisco)as they chat with Holly Troy in Antarctica. Mr. Troy has spent many seasons at McMurdo station working with scientists.

Project: Science from the Poles | Browse All

Date: November 30, 2006
Format: Interview
Category: Everyday Science
Subject(s): General Science

Keywords: antarctica, mcmurdo, penguins, kirk bell, holly troy, ice

Links: Holly Troy Website

Real: 256K  
Windows Media: 256K  
Science from the Poles:  Once & Future Climate, Part 1: The Past (Webcast)
Running Time:
00:31:41
Watch as Exploratorium physicists Paul Doherty and Stephanie Chasteen play around with the leading greenhouse gas: carbon dioxide. What is it? How much is there in our atmosphere? What does it do that is so harmful to the environment?

Project: Science from the Poles | Browse All

Date: November 25, 2006
Format: Demonstration / Activity
Category: Popular Science
Subject(s): Geology/Earth Science

Keywords: climate change, global warming, north pole, south pole, ice, snow, oceans


Real: 256K  
Windows Media: 256K  
Iron Science Teacher:  Milk (Webcast)
Running Time:
1:11:41
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week’s “secret” ingredient: Milk!

Project: Iron Science Teacher | Browse All

Date: July 15, 2005
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics

Keywords: acids and bases, curdling milk, making cheese, surface tension, convection currents, blue sky activity, scattering, total internal reflection, ice cream, comets, make a comet activity


Real: 225K  
Return to Mars:  Where Have All the Rovers Gone? (Webcast)
Running Time:
00:45:44
NASA's Mars Exploration Rovers, Spirit and Opportunity, have long outlived their life expectancy of three months. Join us as we sum up the rover data and explain how this information changes our view of Mars.

Project: Return to Mars | Browse All

Date: February 8, 2005
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: mars, mer, robots, science, images, horizon, craters, surfaces, dry lakes, rocks, wheels, cameras, nasa, jpl, rat, solar power, target.


Real: 225K  1M  
Saturn:  How Far Have We Gone? (Webcast)
Running Time:
00:46:28
After a week of analyzing the data from the Huygens probe, do scientists think of Titan differently? What were the unexpected findings? Which hypotheses were wrong? Which were correct? Join us as we talk to mission scientists at NASA's Jet Propulsion Laboratory and get the latest on this enigmatic moon.

Project: Saturn: Jewel of the Solar System | Browse All

Date: January 22, 2005
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: titan, atmosphere of titan, cassini spacecraft, gravity on titan demonstration, ice balloon activity, weathering, surface erosion, dendridic rivers, sounds of titan


Real: 225K  
Return to Mars:  What's Next? (Webcast)
Running Time:
00:29:21
We update on the week's exciting events on Mars and talk about what NASA has planned for future missions to the Red Planet.

Project: Return to Mars | Browse All

Date: February 28, 2004
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: mars, mer, robots, science, images, horizon, craters, surfaces, dry lakes, rocks, wheels, cameras, nasa, jpl, rat, solar power, target.


Real: 225K  
Return to Mars:  Talking to the Red Planet (Webcast)
Running Time:
00:23:48
How do JPL scientists and engineers talk to the MERs and how do we receive those amazing pictures in return? Find out how, and get the latest updates in this webcast.

Project: Return to Mars | Browse All

Date: February 21, 2004
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: mars, mer, robots, science, images, horizon, craters, surfaces, dry lakes, rocks, wheels, cameras, nasa, jpl, rat, solar power, target.


Real: 225K  
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Gordon and Betty Moore Foundation
Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, The Jim Clark Endowment for Internet Education, the McBean Family Foundation,.and the Corporation for Educational Networks Initiatives in California (CENIC).

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