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WARD’S Landfills and the Environment Lab Activity |
| Students Work with Miniature Landfills in Hands-On Investigation |
Determine which solid waste materials are biodegradable, identify types of bacteria present in different kinds of soil, and test the microbial degrading process by observing the landfills you create with the materials included in this lab activity. These investigations provide data that students can use to define the biodegradability of materials, as well as determine the real function of a landfill. You will get enough materials for three landfills, a list of additional outdoor activities, a teacher’s guide, and student copymasters.
Materials Included
•3 Simulated landfills
•24 Cups with lids
•3 Plastic (bag) liners
•10 Small self-sealing bags
•1 Bottle of starch agar
•1 Bottle of nutrient agar
•6 Petri dishes
•1 Package of microscope slides
•1 Bottle of crystal violet stain
•1 Box of gloves
•5 Magnifying glasses
•2 Packages of sand
•2 Packages of topsoil
•1 Sheet of biodegradable plastic
•1 Sheet of plastic
•1 Spool of natural fiber
•1 Spool of synthetic fiber
Materials Needed But Not Provided
•Scissors
•Spray bottle
•Bunsen burner
•Hot plate
Time Requirement
•Investigation #1: 8 weeks
•Investigation #2: 4-6 weeks
•Investigation #3: 5 days
•Investigation #4: 2-3 weeks
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