Subject: Mathematics Science
Grade Levels: 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade,
Synopsis: Good farmland is in limited supply. Hydroponics is an additional way of meeting the needs of an expanding population. Show your students a hydroponic "lettuce factory" that produces over 50,000 heads of lettuce every week.
Running Time: 02:25 minutes
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