Writer A throng of children and teachers at Foxboro Elementary School bade farewell to hundreds of painted lady butterflies on Earth Day Wednesday .
Life is precious.
That's the message behind environmental projects school children throughout Vacaville are wrapping up this week. Some are planting gardens and restoring native habitats. Others are crafting sculptures of endangered species from recyclable materials or learning how to cut back on the amount of trash they throw away. At Foxboro, children spent weeks feeding nectar to cocoons suspended on numbered plastic tabs in 28 tall netted towers. As they learned about life cycles in science class, students saw the process unfolding before their eyes.