Activities

Water
Wisdom
Large greenhouse operations often determine
water needs and use "automatic" watering measures, such as drip
irrigation. Give your students some water-related challenges.
For instance, ask them to design a simple self-watering system
(perhaps with absorbent cloth wicks), a method of warming water
before it's used on plants, or a "clue" chart to help one another
decide when it's time to water.