Make your own backyard hummingbird feeder--fun project for Daisies doing the Between Earth and Sky or Three Cheers for Animals programs. Turn this into a Take Action project by making feeders for school, library, neighbors,etc. Make it sustainable by having Daisies pass on their knowledge to other people so they can make their own feeders.
Easy experiment conducted anywhere there is a patch of grass to demonstrate that water vapor is given off during photosynthesis. Extension...place a glowing splint in the jar an hour later & when it re-lights demonstrates oxygen is also produced.