Student questions that I'm not sure about

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From: Kelly Taggart (ktaggar@muse.sfusd.edu)
Date: Tue Dec 05 2000 - 13:36:55 PST


Message-Id: <l03130300b6530f2adbdd@[156.1.70.39]>
Date: Tue, 5 Dec 2000 14:36:55 -0700
From: Kelly Taggart <ktaggar@muse.sfusd.edu>
Subject: Student questions that I'm not sure about

1)What is the density of air?

2)What different types of matter make up air (the exact composition)?

3)Things float in water because their density is less than 1 g/ml...will an
object still float if it's density is the same as water? Or will it sink?

4)Can sound and/or light ever be classified as matter?

5) What is the smallest particle currently known to sicence? (Last I heard
it was quarks. Is that still true?)

Teacher question: What is a good way to describe quarks to 8th grdaers?


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