Trim a bunch of celery 3 inches or so above its base. Place it in a shallow dish of water. Leaves should grow out of the center in a week, and tiny roots will also sprout from the bottom. Peel away any rotting stalks as the plant grows.
This is fun.
Science for Kids: Observing Plant Growth with Bulbs (with a FREE printable observation sheet!)~ Buggy and Buddy
How to root hydrangea cuttings. If i can, i want to make cuttings of my plants at my dad's house before moving out to somewhere :) so i can bring them with me in spirit
Trim several stalks from a basil plant, pinching off the larger leaves from the stalks' tops (this focuses energy on root-growing). Submerge the cut ends in water. The bottoms will darken, and, after about two weeks, small roots should emerge.
A Cute Keepsake Gardening Craft: Give your loved ones living hairdos with a project that's simple to make (and simply silly).