A sol-id has weight, takes up space,
Has a cer-tain shape.
Li-quid has weight, takes up space,
But con-forms to the ves-sel in which it is put.
So a sol-id and li-quid 
Look dif-f'rent to me.

(Chorus)
Oh, dear, what can this mat-ter be?
Oh, dear, what can this mat-ter be?
Oh, dear, what can this mat-ter be?
Sol-id or li-quid or gas?

A gas is in-vis-i-ble, but we can prove 
It has weight, takes up space,
Have you seen a bal-loon filled with gas,
Where the mol-e-cules spread and they spread
In-to all of the spa-ces you see?

(Chorus)
Oh, dear, what can this mat-ter be?
Oh, dear, what can this mat-ter be?
Oh, dear, what can this mat-ter be?
Sol-id or li-quid or gas?

Lyrics by Mrs. Stevens:  http://gardenofpraise.com/matter.htm