Make an Edible Candy Landfill
- Clear Bowl (serves as the landfill "cell")
- Marshmallows (fabric layer)
- Fruit Roll-ups™ (liners & "cap")
- Chocolate Pudding (dirt)
- Licorice (leachate collection)
- M & M’s™, animal crackers (garbage)
- Smarties™ (pea gravel)
- Sugar Wafers (drainage layer)
- Green Sprinkles (grass)
- Spoon (to eat with!)
Line bowl with fruit roll-up™ (liner). Liners seal garbage and leachate (any liquids) in the landfill.
Cover the fruit roll-up™ with a layer of sugar wafers (drainage layer). The drainage layer collects any leachate passing through the leachate collection pipes. Leachate is pumped to a treatment plant.
Add a second fruit roll-up™ (liner) over the sugar wafers.
Add a layer of marshmallows (fabric layer). The fabric layer cushions the bottom layers from punctures.
Sprinkle some of the smarties™ (pea gravel) over the marshmallows. Pea gravel filters leachate into collection pipes for treatment.
Tear licorice (leachate collection pipes) in pieces the length of the bowl and lay in rows over smarties™. Leachate collection pipes collect leachate and pump it to a treatment plant.
Add remaining smarties™ (pea gravel) on top of licorice.
Place another layer of marshmallows (fabric layer) over the smarties™. This layer cushions the layers below from any sharp objects that may be contained in the garbage.
Dump a layer of crushed animal crackers and M & M™’s over the marshmallows. This layer represents assorted garbage.
Cover with a thin layer of pudding. Each night, the garbage in a landfill is covered with a layer of material (usually top soil). This layer reduces odors and litter problems.
Alternate crackers and M & M™’s (assorted garbage) with pudding (dirt) until layers are 1 inch from the top of the bowl. Top it off with a layer of pudding (dirt).
Sprinkle another layer of marshmallows (fabric layer) over the pudding. This fabric layer protects the top layers from sharp objects in the garbage below.
Unroll another fruit roll-up™ and place on top for the "cap". A cap protects the landfill from rainwater. This reduces the amount of leachate entering the landfill and flowing into the leachate collection pipes.
Add a final layer of pudding (top soil) and top off with candy sprinkles for grass (final cover to prevent erosion of top soil).
Unlike a real landfill, you can EAT this one! DIG IN!
Note: Adapted from "Incredible, Edible Landfill," by REEP, MS/JHS Earth Science Unit.