NALTA: North America Large-area Time-coincidence Arrays

Okay, that's a mouthful.  I first read about this a month ago and put it on my list of things to look into.  What I was hoping for was something that might be applicable for participation by middle school students.  NALTA is a cosmic-ray detection experiment which requires fairly simple equipment which is placed on the school roof and is largely (completely?) maintenance free. 

WeatherBug Example Exercises

I've been advocating the use of WeatherBug data in normal classroom exercise for a while.  I'm not sure that it's caught on, so I decided to start putting together some sample exercises.  This section is that, the examples.  As example, they are "fully worked" meaning I ask questions and then provide answers.  Of course, in many cases, all you have to do to avoid having students just copy my answers is change the date from which I took the data.  If I take temperature data from September 30th, then do an exercise for November 1st.  Same problems, different data, differe

WeatherBug Exercise 1 (Math): Temperature Statistics: Max, Min, Range, Median, Mean

The process of calculating an average is not hard, but it can be tedious. So, in math class, the children are often given a set of made-up numbers that make the process easier. In this exercise, you don't get a break; we're going to use real data from the WeatherBug at P.S. 102 for December 1, 2009.  Here are the hourly temperatures:

New Horizons Wake-Up Call

The New Horizons spacecraft on it's way to Pluto was scheduled to get a wake-up call on November 9 and then spend 10 days running system tests and diagnostics.  The trip to Pluto is so long (in spite of the craft's record speed of about 23 km/sec) that it spends much of its time in hibernation mode.  It's schedule to arrive at Pluton in 2015.  Today it crosses the 15 AU mark (that's 15 times as far from the Sun as the Earth is).

According to a Twitter post, the craft is now away and operating.  Hopefully, we'll get an update soon on Unfortunately, for all us eager to hear news of Pluto, well, we'll just have to wait.  Space is, alas, mostly space with not much to see.

Saturn's Ring System Just Got Bigger

Okay, the rings themselves haven't changed at all.  But it turns out that there is an outer dust ring that is about 24 million kilometers in diameter composed of dust grains that do not reflect visible light.  Because of that, it hasn't been seen before.  NASA has a short (very short) press release showing an artist's concep

Galaxy Zoologists Wanted!

Here's a project in need of (part-time) volunteers.  Classifying galaxies.  Yep, you too can become a galactic zoologist!  You can find a short teaser on the Astronomy Picture of the Day web site (APOD Oct 26, 2009) with more details at the official Galaxy Zoo web site.  Makes a good family game with older kids, too.  How would you classify that galaxy?

Inquiry Based Science Lessons

Another generic resource, also from the NSTA elementary mailing list.  The issue of using inquiry in science lessons is a big deal and also came up a recent School Leadership Team meeting.  Inquiry does, of course, get used, but it's always a tough item since it is easy to get "off script" when using a lesson plan that allows student-driven inquiry.  At the same time, it's hard to really teach science without it.  The issue in NYC, and probably many other places, is that since the city has instituted standardized science testing, the test is naturally content based. 

Science Resources for Teachers

Today I am at jury duty here in King's County.  That means, for now anyway, that I'm waiting for my name to be called while the machinations of justice do their thing somewhere else in the building.  But the court system has moved into the modern age, at least in some ways, like providing free wifi here in the jury assembly room.  So I can catch up on a little reading from the National Science Teachers Assocation (NSTA) elementary level mailing list.

Historical Videos of Nuclear Tests

The national Nuclear Security Administration's Nevad Site Office has made available a number of historically important videos for nuclear tests from the 1940s through the 1960s.  Apart from our common morbid fascination with things that go boom, you can always think of splicing these in as special effects for your next July 4th videos....

Videos at


Subscribe to RSS