Using Chime:

If Chime is correctly installed you should be able to see rotating molecules in the table on the Molecluar Geometry Lab 3D Answer key.  If you do not see rotating molecular models in the "Overall Arrangement" and "Molecular Geometry" columns you may need to install CHIME (download and run the .exe file to install Chime)

To Manipulate the molecule:
    Place the cursor over the molecule and carry out one of the mouse actions described below:.
 
Mouse Action
Effect
Hold down left button + move mouse Rotates the molecule in 3D
Hold down right button Gives menu of options for changing display types, turning rotation on/off, etc. (see table below for details)
Shift + left mouse button and move mouse up/down  Increases/decreases the size of the molecule
Ctrl + right mouse button Translates the molecule
Shift + right mouse button and move mouse left/right Rotates the moleule about the z-axis (that comes out of the screen at you).
 
There are many options in Chime and more complete descriptions are available on the links below.  But, for the purpose of this exercise you will only need to be familiar with the following Chime options (click the right mouse button while the cursor is over the molecule to reveal the Chime options menu):
 
Rotate Click this to turn the rotation of the molecule on/off
Display Use this to change the display type for the molecule.  The spacefill/van der waals radii display type shows the approximate size of atoms in the molecule thus revealing the size and shape of the molecule.  The other types, wireframe, sticks, and ball and stick are better for showing the bonding or connectivity in the molecule.
 
Links to other sites with Chime instructions:
http://www.umass.edu/microbio/chime/chimehow/chimehow.htm
http://c4.cabrillo.edu/projects/chime_tutorial/index.htm
http://academic.pgcc.edu/psc/chime_guide.html