Thank you, Cym. Very insightful advice. My DD has been away on couple overnight school science field trips for 4-5 days each, so hopefully that will account for some experience! WATS classes seem very interesting for the 4-6 graders - I may look into that some more - thanks for the tip!

My other dilemma now, is that DD is only really interested in one of the two science courses offered at Palo Alto, we want her to be truly interested in the courses that she applies for, and prefer her to stay in NorCal if only, for travel reasons. She has High HOnors math scores, hope it is high enough to get her her first (and basically, only) choice.... It will be a little gamble... wondering if that is a risky proposition and sure way to lose the registration fee frown We may have to be open-minded about having her apply for other sites and travel by air to get there. Seems that others have successfully had their kids in this age group (4th-6th) travel out-of-state for these experiences?