Bottle Biology | Hanging Investigations

Hanging Bottle Investigations

Hang Your Decomposition Column

Click here for instructions for filling and building a Decomposition Column.

Step 1 - Cut two, 3-foot lengths of cording and fuse the fiber ends with heat from a flame or hot nail.

Step 2 - Using a soldering iron or hot nail, melt pairs of 4 mm diameter holes opposite each other on the seams of bottle components "A," "B," "C" and "D" as in the drawing.

Step 3 - Tie a simple knot in one end of each cord, then thread each cord through the hole in the rim of "D," from the inside to the outside the knot will be on the inside of the reservoir unit "D." Continue threading the cords from the outside of unit "C" to the inside to the outside of the base of "B," then work inside through the holes just below the hip (top) of "B,"

Step 4 - Thread the cords from the inside of column top unit "A," then tie the ends of cords together with a square knot.

Hang your bottle on a hook and it is ready for loading.

Hang your TerrAqua Column

Click here for instructions for filling and building a TerrAqua Column.

Step 1 - Cut two, 3-foot lengths of cording and fuse the fiber ends with heat from a flame or hot nail.

Step 2 - Using a soldering iron or hot nail, melt pairs of 4 mm diameter holes opposite each other on the seams of bottle components "A," "B" and "C" as indicated in the drawing.

Step 3 - Tie a simple knot in one end of each 3-ft cord. Thread each cord from inside of section "C" so knot is inside reservoir.

Step 4 - Thread each cord from outside of "B" to the inside of the deep funnel "C."

Step 5 - Thread each cord end from the inside of component "A" to the outside of the top funnel unit. Tie the two ends in a square knot and hang.

Your TerrAqua Column is ready to be filled.

Bottle Biology, an instructional materials development program, was funded by a grant from the National Science Foundation administered by the University of Wisconsin-Madison.