Task: make a terrarium
Assumptions:
Make a soda bottle terrarium.
Steps:
Pick up an empty soda bottle.
Clean the bottle.
Cut the bottom part of the bottle.
Set aside the bottle's top portion.
Put a layer of sand in the bottle's lower half.
Add pebbles or small rocks on the top of the sand.
Add some activated charcoal on top.
Add a layer of potting soil to the top of your bottle half.
Add seeds to the soil.
Place the top half of the bottle over the bottom half.
Add water intermittently.
Place the terrarium in the yard or in a window to get light.