History of Winter. Lets Get Started! NES Educator: Brenda Van Dyke.
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Transcript of History of Winter. Lets Get Started! NES Educator: Brenda Van Dyke.
History of Winter
History of Winter
History of Winter
Let’s Get Started!
NES Educator:BrendaVan Dyke
History of Winter
It’s been a great week!
History of Winter
Introduction
• Goals of Web Seminar:Snowflake taxonomy & classification
• Meet the scientists forThe History of Winter:
• Dr. Peter Wasilewski• Eric Erbe
History of WinterDr. Peter Wasilewski
History of Winter
Dr. Peter Wasilewski in Antarctica
History of Winter
Eric Erbe and his Scanning Electron Microscope
History of Winter
The Secret of Snow: Discover-February 2004
History of Winter
Low Temperature Scanning Electron Microscope
History of Winter
NES Educators:• Tim Hart• Joe Cote
Solar System Ice
History of Winter
Solar System Ice
• Winter on other planets
• Ice Formation on Earth and Mars
• Ice Formation Demonstration
History of Winter
Solar System Ice
Question 1:Do you think you can have winter with ice on the lakes and snowflakes in the sky on all the other planets?
A. Yes
B. No
History of Winter
Solar System Ice
Question 2:How do you think winter will vary on Mars versus Earth?
A. Ice will be colder on Mars
B. Ice will vary in color on planets
C.Ice will vary in size on planets
D.Ice will vary in shape on planets
E. Ice will be made from different stuff
History of Winter
Solar System Ice
History of Winter
Solar System IceQuestion 3: What is different about these images?
Use your chat window to respond to us!
History of Winter
Solar System Ice
Question 4: Which do you think would simulate Martian frost? A or B?
A B
History of Winter
Solar System Ice
Ice Formation
Live Demonstration
History of Winter
Solar System Ice
History of Winter
Solar System Ice
History of Winter
Solar System Ice
Looking through Dry Ice tank and seeing water ice in the background
History of Winter
Solar System Ice
History of Winter
Solar System Ice
History of Winter
Solar System Ice
History of Winter
Solar System Ice
History of Winter
Local Snowflake Classification
NES Educators:• Kyan Thornton• Tammy Brown• Todd Hanson• Frannie Becquer
History of Winter
Local Snowflake Classification
Question 5:Were you able to collect and observe your local snowflakes?
A. YesB. No
Use Yes/No button on the right of screen
History of Winter
Local Snowflake Classification
Question 6: Which of these do you think are snowflakes?
Use the drawing tools to mark your image. Don’t hit the erase button!
A B
C D
E F
G H
History of Winter
Local Snowflake Classification
Hexagonal Plates
Stellar Plates
Hexagonal Columns
Needles
History of Winter
Local Snowflake Classification
Spacial Dendrites
Capped Columns
Irregular Crystals
Graupel
History of Winter
Question 7: What type of snowflake is this?
Local Snowflake Classification
History of Winter
Question 7:What type of snowflake is this?A. Hexagonal PlatesB. Stellar PlatesC. Capped ColumnsD. Needles
Local Snowflake Classification
History of Winter
Question 8: What type of snowflake is this?
Local Snowflake Classification
History of Winter
Question 8:What type of snowflake is this?
A. Hexagonal PlatesB. Stellar PlatesC. Capped ColumnsD. Needles
Local Snowflake Classification
History of Winter
Question 9: What type of snowflake is this?
Local Snowflake Classification
History of Winter
Question 9:What type of snowflake is this?
A. Hexagonal PlatesB. Stellar PlatesC. Capped ColumnsD. Needles
Local Snowflake Classification
History of Winter
NES Educators:• Myra Bauer• Mary Tran• Mary Lara
What affects snowflake formation?
History of Winter
What affects snowflake formation?
Question 10:Why do you think there are different types of snowflakes produced?
Use your chat window to talk back to us!
History of Winter
What affects snowflake formation?
Question 11:What might be some of the things that affect how a snowflake forms?
Use your chat window to talk back to us!
History of Winter
Use the drawing tools that appear in the next slide to place an “X” for your state.
Don’t hit the erase button, you’ll erase everyone’s marks!
What affects snowflake formation?
History of Winter
What affects snowflake formation?
History of Winter
Question 12:
Thinking back to the map of the US, what is different about each school location and how might this affect snowflake formation?
What affects snowflake formation?
History of Winter
NES Educators:• Sue
Whiteside• Lisa Stoner
Graph analysis:Snowflake Formation
History of Winter
Graph analysis:Snowflake Formation
Question 13:Which factors might have the biggest impact on snowflake formation?
A. Wind Speed B. TemperatureC. Daytime/NighttimeD. Amount of water in air
(humidity)
History of Winter
Graph analysis
History of Winter
• Ice and winter exist on other planets in the solar system
• Ice on other planets may be very different then water ice of Earth
• There are different types of snowflakes on Earth that may be classified by a known taxonomy
• Two main factors affect snowflake formation:– Water content in air affects snowflake size– Temperature of air determines snowflake type
Today In Review
History of Winter
Thank You
Sincere thanks to those that helped in creating and delivering today’s NES program:
- Dr. Peter Wasilewski- Dr. Tony Gow- Eric Erbe- NASA Glen Research Center- Baker Communications- The NSTA Institute- NASA Explorer School Educators!
History of Winter
Join Tomorrow’sVideoconference and Webcast
Sharing HOW datawith studentsFriday, Feb. 201:00 PM –2:30 PM EST
http://howexcite.gsfc.nasa.gov