Waste and Our World Grade Four Review

A landfill is a large hole in the ground where garbage is dumped. Advantages: No open burning ultimate disposal Little odor Low water/groundwater pollution Can handle large amounts of wastes less cost Filled land can be used for other purposes Disadvantages: Noise and traffic Dust Air pollution from toxic gases and volatile organic compounds Releases greenhouse gases (methane and CO2) Can leak and cause groundwater contamination Slow decomposition of waste Encourages waste production Landfills

A factory where garbage is burned. Advantages: You do not need a large amount of space incineration can removes a large amount of trash by reducing it to ashes Disadvantages : incineration can pollute the nearby atmosphere incineration can cause fires and harm to objects around it incineration can be an eyesore in fancy communities Incinerator

Sending your waste to a factory where it is made into another useful product. This is usually the last resort for the consumer. Things we can recycle are paper, cardboard, plastic, juice boxes, and tin. Recycling Saves Energy Recycling Saves Natural Resources Recycling Saves Space for Waste Disposal Economic Benefits Recycling

Finding other use for a piece of waste or repairing it to use again. In this case, nothing has to be changed about the piece of waste, you are just reusing it for something new. Examples: Empty coffee can to store pencils Yogurt containers for flower pots Reuse old clothing or toys by donating them to charity Reusing

Decreasing the amount of waste you create in the first place by buying only what you really need. Make smarter and more eco- friendly choices to save the amount of wastes that you have to recycle or that will eventually end up in the landfill. Buying bag cereal instead of box of cereal Buying a bulk bag of candy instead of individually wrapped packages of candy Buying a bag of oatmeal instead of a box with mini bags inside of it Reducing

Putting organic scraps such as apple peels into a bin where decomposers can eat it. It goes from your garbage to the garden. This is a great way to use all of your old food scraps and return their nutrients back into the soil to help grow more crops. Composting

What goes in your compost bin? Green Items for the Compost Pile Fresh grass clippings Fresh garden trimmings, flowers, plant leaves Barnyard manure (horse, cow, chicken) Garden vegetable leaves and stalks, fallen fruit Weed leaves, stems and flowers House plants and potting mix Brown Items for the Compost Pile Autumn leaves Twigs and stalks Coarse sawdust and shavings Shredded paper, cardboard, paper towels, napkins, tissues Don’t forget a lot of kitchen scraps can go into your compost pile, including egg shells, fruits, coffee grounds, grains and corn husks.  What goes in your compost bin?

Hazardous Waste Something that can easily catch on fire is Flammable Something that can make you very sick or kill you if ingested is Toxic or Poisonous Something that can burn your skin, eyes, etc. is Corrosive Something that can easily explode is Explosive Where does gas, spray can, bleach, and car oil belong? Hazardous Waste

Where do they belong? Fruit peel chip bag toilet tissue Recycle Compost Garbage Hazardous Waste Fruit peel chip bag toilet tissue Old stero diaper potato peel Half full paint can moldy tomato newspaper Paper egg shells tin foil Old phone juice box soup can Where do they belong?

What are three different types of waste found in nature? Plant waste is Oxygen, dead leaves, grass clippings. Animal waste is Carbon Dioxide, feces, and scraps from things they eat. What don’t we see that much plant or animal waste in nature? Waste found in nature is biodegradable and naturally decomposes in a short amount of time. What can be considered human waste? Humans have created a lot of non biodegradable waste as well as biodegradable waste. Humans have created man made waste that damages our environment. Such things like plastic, hazardous waste, metals, paper, and a variety of other things. Waste in Nature