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Asteroid Watch
Fireballs from the Sky
March 21st, 2003
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Thank you for your data for Asteroid Watch 2003. You'll find all the data that was submitted posted at

Here are the conclusions that were shared by the Comets from Pueblo Elementary, Scottsdale, AZ

We discussed these results:
Some students say there was no connection between rock size and the damage they did.  However, one student noted that there was a pattern; usually, bigger rocks did more damge, but there were some exceptions.

Amazingly, Big Daddy (the largest rock) had the smallest depth.  We believe this is because Big Daddy was a very flat rock, and we dropped it on its flat side.

Midget was another exception.  It made deep holes because it was “tall”,long and pointy.  Midget’s shape helped it to poke holes like an arrow would.

How this relates to asteroids:
Most students believe that we should be more scared of the big asteroids.  However, we noticed that little ones can do a lot of damage, too.   (It depends on how they’re shaped.)

Final conclusion:
You shouldn’t judge a rock by its size.

Thank you for your very interesting conjectures. I wonder what would have happened if you had dropped the rock from a higher level? Would it have made a difference in your analysis? Also I notice that your ejecta did not "travel" very far from your crater site. Take a look at the data from Manhattan Village and compare the distance the ejecta traveled to the change in height. It appears that maybe the ejecta distance is more significant the higher up from which you drop the rock.

I also like your conclusion. It reminds me of the famous quote attributed to Mark Twain: "It's not the size of the dog in the fight, it's the size of the fight in the dog". And the "fight" in the meteor that struck Mexico 65,000,000 years ago was devastating!

Though we are running late with this project, I still welcome (and will continue to post) your responses and comments.

Thanks for participating,

Ihor Charischak
Asteroid Watch Collaborative Project
Stevens Institute of Technology
Center for Improved Engineering & Science Education
Hoboken, NJ 07030
Project website:

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