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Atmospheric Detectives Activity - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect Segment involving students in an activity to determine the amount of aerosols in the atmosphere.

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Welcome to St. Stephen's Indian School! 00:00:00
St. Stephen's Indian School is a BIA grant school situated on the Wind River Indian Reservation 00:00:03
in Central Wyoming. 00:00:10
The reservation is home to nearly 10,000 Native Americans, mostly of the Northern Arapaho 00:00:12
and Shoshone Tribes. 00:00:17
Students work hard on the usual subjects like math and English. 00:00:19
We are very proud to be involved in this project. 00:00:23
SOCCER! 00:00:27
NASA Connect asked us to show you how to do the lesson for this show. 00:00:29
Here's how you can become real atmospheric detectives. 00:00:33
Once you've gathered the materials listed in the Educator's Guide, locate a specific 00:00:37
outside area that is flat, elevated, and open. 00:00:41
Divide the class into four research groups. 00:00:45
Each group then tapes one piece of contact paper to the center of the cardboard. 00:00:48
Tape the one piece of contact paper in the center of the cardboard with the sticky side 00:00:54
up. 00:00:58
Keep the protective backing on the contact paper. 00:00:59
Repeat the above procedure for a total of two aerosol samplers for each research group. 00:01:01
Each group is then assigned an area on the school grounds in which to place its sampler. 00:01:08
Each group completes the morning column on Table A, Observations of Weather Conditions, 00:01:14
on Student Data Worksheet Number 1. 00:01:18
You will need to refer to the local paper, watch the local weather report, or visit www.weather.com 00:01:21
before completing your observations. 00:01:29
Now place one of the samplers on a flat surface, preferably a meter or two above the ground. 00:01:31
Remove the protective backing from the contact paper. 00:01:36
After exposing the sampler to the outside air for at least two hours, place the aerosol 00:01:40
sampler grid, grid side down, over the contact paper and return the sampler to the classroom. 00:01:45
Using a magnifying glass or holding the contact paper up to a light, count the number of aerosols 00:01:51
found in each of ten randomly selected squares on the grid. 00:01:58
Randomly select the squares by tossing the dice twice. 00:02:02
Record the number of aerosols in each sample square on Table B, Aerosol Sampler Collection 00:02:07
Data on Student Data Worksheet Number 1. 00:02:12
Add up all the aerosols in the ten randomly selected squares to get a total. 00:02:16
Next, divide the total number of aerosols by ten to get an average, or mean, of the 00:02:21
aerosols per square. 00:02:27
Repeat the procedure for the afternoon samples. 00:02:30
After the average number of aerosols per square for each of the two samplers has been calculated, 00:02:33
construct a line graph using the aerosol sampler line graph to compare the data. 00:02:39
After you've completed this activity at school, you'll take your own sampler home. 00:02:45
Place your sampler on a flat surface one to two meters above the ground. 00:02:50
Leave your sampler outside overnight. 00:02:54
First thing in the morning, attach the aerosol sampler grid, grid side down, to the contact 00:02:57
paper. 00:03:02
Bring your sampler to school with you. 00:03:03
When you get to school, your teachers will give you time to randomly select your ten 00:03:05
squares. 00:03:09
Find the average and record the data in Table C aerosol sampler data, collection from home 00:03:10
on Student Data Worksheet Number 2. 00:03:15
Next, you'll write your address and the total number of aerosols from Table C on a self-adhesive 00:03:18
note. 00:03:23
Your teacher will divide a map of your community into four regions, Northeast, Northwest, Southeast, 00:03:24
and Southwest. 00:03:31
All students will place their labeled adhesive notes onto the map where they live. 00:03:32
Collecting the data from the map, find the average for each region and make a class graph 00:03:37
of the data. 00:03:41
Analyze your data, guys. 00:03:42
Now that you have the results from your sampler, you should review the data and discuss your 00:03:45
observations. 00:03:49
Then, consider these questions. 00:03:50
How can weather conditions affect the results of this activity? 00:03:54
What are some other methods you could use to collect data on aerosols in the atmosphere? 00:03:57
Look at your map of your community and the data collected from home. 00:04:05
What is the relationship between where students live and the amount of aerosols collected? 00:04:09
Teachers, check out our NASA Connect website. 00:04:15
From here, you can download the Educator's Guide, where you'll find more questions like 00:04:18
these that'll help your students analyze their data. 00:04:22
Now, let's head back to Hampton University and meet Dr. John Anderson. 00:04:25
Dr. Anderson uses space-based passive remote sensing to measure aerosols in the atmosphere. 00:04:31
Remember, this type of remote sensing is different from LIDAR, which uses active remote sensing 00:04:36
to measure aerosols. 00:04:42
Dr. Anderson's passive remote sensing system is actually above us right now, on a satellite 00:04:43
in space. 00:04:49
A satellite is any object that orbits another object in space. 00:04:50
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Idioma/s:
en
Materias:
Matemáticas
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
350
Fecha:
28 de mayo de 2007 - 16:53
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
04′ 55″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
480x360 píxeles
Tamaño:
29.44 MBytes

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