Twenty Eleven 1.2 is there a way to tighten up the space between the sentances?

Do not edit the Twenty Eleven theme. It is the default WordPress 3.2 theme and having access to an unedited version of the theme is vital when dealing with a range of site issues.

For this reason, it is recommended that you consider creating a child theme for your customisations. Once your child theme is active, we should be able to help with the customisation.

o.k. I will do that and post back here, thanks!

o.k. now, how can I make the text closer together in the child theme?

Look for line-height in the css:

I think this may be what you are looking for in twenty-eleven child:

/* =Global
----------------------------------------------- */

body, input, textarea {
	color: #373737;
	font: 15px "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-weight: 300;
	line-height: 1.625;
}

Play with the line-height variable.

Cool that worked thanks