1. Terraqua Columns - Logistics

Time
30 min ecosystem lesson and discussion
20 min build terraqua column frame
20 min add soil, water, and seeds
* I recommend building the terraqua column frame on one day then adding the soil, water, and seeds the following day.

Grouping
2-3 students

Materials
For each group:

• 1 clear 2 Liter soda bottles
• 1 foot wick (1-2 cm wide strip of old cotton towel)

For 2-3 groups to share:

• Awl OR electric drill with 3/8 inch bit
• Hole punch
• Box cutter
• Scissors
• Sharpie marker

For whole class to share:

• Soil, either store-bought potting soil or soil from outside
• Hand trowel
• 1 package radish seeds OR Wisconsin Fast Plant seeds
• Water, either tap water or pond/creek water
• Graduated cylinder

Optional:

• Rubbing alcohol (for erasing sharpie marker lines)
• Clear tape

Setting
Classroom