Monday, November 13, 2006

What's going on in the Sun??


We used the bumble ball to model the random walk of photons in the Sun. We wanted to know how the photons get from the Sun's core and "escape" as light. There is a GEMS question/answer site which explores this phenomena. I also found an online lab..

I don't know how I would use this with my students, but I think using the modeling with real science and introducing it to young students is a way to circumvent misconceptions and help students explore complex investigations of natural phenomena while they are in the intense questioning phase of their development.

We did and will continue to do Solar Exploration and this will develop student based/authentic scientific inquiry and investigations.

What's going on in the Sun??

We used the bumble ball to model the random walk of photons in the Sun. We wanted to know how the photons get from the Sun's core and "escape" as light. There is a GEMS question/answer site which explores this phenomena. I also found an online lab..

I don't know how I would use this with my students, but I think using the modeling with real science and introducing it to young students is a way to circumvent misconceptions and help students explore complex investigations of natural phenomena while they are in the intense questioning phase of their development.

We did and will continue to do Solar Exploration and this will develop student based/authentic scientific inquiry and investigations.

Sunday, November 12, 2006

The Night at the Bean...


Our own Millenium Park in Chicago has a great optic experience, Cloud Gate , better known as the bean. The class visited the park and did some night observation and used some random optic equipment to design our own optics experience. My group used two convex lenses to make a rudimentary refraction telescope.

On an earlier visit to the bean...



Sun Observation







Don't know what to do during morning recess duty? Try some Solar Observing, I did! :) We used the Solar Shield we made in class.

On November 8, 2006 I was able to view the Mercury Transit through my 4.5 Orion Firstscope Telescope fitted with a Solar Filter. It was cool to view the Sun, I've wanted to do Solar Observation for a long time and this gave me an excuse to get the filter, although I admit that it was hard to see Mercury , but easy to see the big Sunspot. I used my CanonA75 to capture my telescopic view. If you look at the upper middle of the Sun you can see Mercury's shadow. The big dot in the upper right is the Sun spot. These photos range from 3:00- 5:00 pm.

The Exploratorium has a great clip on their website.

Wednesday, November 01, 2006

StarLab and Orientation/Navigation by Polaris














We were able to go into the StarLab portable planetarium with guest lecturer,Chuck Bueter from the Great Lakes Planetarium Association. Chuck also maintains the Paper Plate Education Web Site. We used our planispheres and the Latitude by Polaris devices before we went into the planetarium.

We built a student friendly "platisphere" with the Big Dipper, 2 stars from the Little Dipper, Polaris and Cassiopeia to help us find "North".

Tuesday, October 31, 2006

Yerkes Visit




On Friday October 20, 2006 we visited the Yerkes Observatory for a tour. We were able to visit the world's largest Refracting Telescope- -it has a 40inch lens.

There are several articles about the wonders of this telescope. When the telescope is tracking correctly it is used in research. There is a catalogue of 100 years' worth of telescopic photo images taken through its lenses.




We also went into another smaller 24 inch telescope, we tried observing, but the skies were cloudy so we were only able to watch the dome open and the telescope move around.

Wednesday, October 11, 2006

StarMaps PowerPoint

We looked at some sky maps to figure out what month and year it was when we could see Jupiter, Mars, and Saturn in the sky.

Questions to investigate using skymaps:
How do stars move from one month to the next?What direction? (Keep in mind that east is left.)

Do stars move in a straight line?Is the motion of the stars the same for every part of the sky?

Are there stars that move very little or not at all?Are there stars that move more rapidly than others?
Where in the night sky would you have to look in February to find the constellation of Orion?

Where is it in April?Where is it in May?

Orion













Are there stars that are visible all year long? If so, where are they located? circumpolar stars are visible

Which planets were/are visible at 10:00 PM during the twelve-month time period?

visible planets during 2006
or check out Stardate Online

How do the planets move from one month to the next?Do they move the same way as the stars in the same region of the sky?Do all planets that were visible move the same way?

Monday, October 09, 2006

Constellations in Fall : Cassiopeia





Cassiopeia "The Queen"
"Many of the Fall constellations are connected by one Greek myth, the story of Perseus nd Andromeda. Andromeda's mother, Cassiopeia was a fabled queen who often bragged about how beautiful she and her daughter were. (Indeed she is often pictured on her throne gazing into a mirror) even though her bragging ended up causing a lot of trouble, the gods placed her in the heavens. For part of the year Cassiopeia looks very royal on her throne in the sky,but the rest of the time she appears upside down as punishment for her boastfulness! ...During the fall, Cassiopeia forms an easy to recognize "W" in the sky. This constellation is also a reliable guidepost to other fall star groups. The brightest star in Cassiopeia is Shedar , which seems to have a pale pinkish tint. Shedar pictures and more information. The next brightest star is Caph, Cassiopeia's hand. Caph
is a 2.3 magnitude blue-white giant. Gamma Cassiopeiae, the middle star in the"W" is a blue giant variable star that unpredictably varies from magnitude 3.0 to 1.6 (information)
Life Cycle of Stars
from The Stargazer's Guide to the Galaxy by QL Pearce


You can build your own sky wheel or star map to find constellations.

Cassiopeia A - a supernova event and its aftermath as seen through Hubble Telescope

There are some online teaching guides Teacher's Guide to the Star Stories available in pdf or Pictures in the Sky and for First graders in the Portable Planetarium

Some more research about Cassiopeia and here

To see the patterns in the sky

Tuesday, October 03, 2006

Moon Finder




I took this image tonight, Tuesday, October 3, 2006 at 10:04 pm in my front yard ( I seem to do all of my science in my own yard). with a Canon PowerShot A75...Dimensions 2048 x1536(pixels)

What we see is a Waxing Gibbous Moon--on its way to Full Moon by Friday, October 6, 2006.

Check out the Moon Phase Calendar (as recommended by our own Bernhard ).

To teach my students about the Phases of the Moon, we painted them on our Modular Unit...Of course, each year I discuss the painting with the kids and we talk about the fact that there is only one moon and not eight.


2. Address the following questions in your blog (or journal):
How could you help students overcome the following common misconceptions about the phases of the moon?
  • The moon is only visible at night. You can never see it in the daytime.

If the students spend a month observing and charting the moon they will discover that the moon is out in the daytime regularly. I also point out the Moon whenever I see her, to whomever is nearby, so chances are I am showing some kid the moon during my morning duty, when I see her out.

  • The phases of the moon are caused by clouds.

We can notice the Moon changing shape with and without cloud cover. There are also some good kid books which illustrate the moon changing shape.

  • The phases of the moon are caused by Earth's shadow on the moon.What other misconceptions might your students have about the phases of the moon?

I have not asked them, but I will survey my class and post the results for what they think they know about the Moon.