[Q]: Objective: How can you drill a hole through a wooden surface?
[A]: Attach the correct drill bit, turn on the drill, and push the spinning drill bit into the wooden surface until a hole is made.

[Q]: Objective: How do you attach Java Fern to wood?
[A]: Java fern can be attached to driftwood or rocks either with fishing line, thread, or my personal favorite, super glue gel.

[Q]: Objective: Knife
[A]: Can be used to rip a Net

[Q]: Objective: How big should the entire shelf unit be when making easy cardboard shelves?
[A]:
Each unit should be built at most 20 inches wide. The height can vary somewhat depending on your needs, but 42 inches high makes the it stable and sturdy.