One week before the activity, soak and germinate four lima bean seeds for each student group. For each student pair, assemble three planting pots, soil, spoons, and water droppers. Demonstrate how seedlings are planted. Provide a growing area for the potted plants. The area should be warm and have sunlight for at least part of each day.
Safety Note Keep all liquids away from the students' eyes and mouths.
Provide each student pair with the appropriate materials for planting the seedlings. Provide newspapers to cover the planting area as this is a messy activity. You may wish to have the planting area outside to expedite clean-up. Encourage the students to plant two seedlings in each planting pot. Mark the pots A for alcohol, O for oil, and W for water.