What if he foregoes the final day of kitten camp to attend the rocket launch?

For last-minute summer activities, have you considered science kits? While they may vary greatly in quality, the Davidson Database lists several which have been recommended by parents. For example, look for 'kit' in this list of Chemistry resources.

The general List of Resources by Subject Area may also be of interest.

To carve out some daily mom-time, you might try implementing a regularly scheduled "quiet time" as described in this recent post by Portia. smile