Boiling, filters, bear canisters, and camp kitchen safety.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- How long should water boil at sea level to be safe to drink?
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1 minute, or a full rolling boil- How long must water boil at high altitude (above 6,500 feet)?
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3 minutes- What temperature must water reach to kill most pathogens?
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212 degrees Fahrenheit (100 degrees Celsius)- What main illness comes from drinking untreated backcountry water?
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Giardiasis, caused by Giardia parasites- Before boiling muddy water, what should you do first?
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Let the sediment settle, or strain it through cloth- What type of filter material removes sediment from water?
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Sand, gravel, or layered cloth- What does activated charcoal in a water filter remove?
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Taste, odor, and some chemicals- What is a squeeze water filter?
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A portable filter you push water through into a bottle- What is a gravity water filter?
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A filter that uses water weight to push it through the filter medium- What is the main advantage of a pump water filter?
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It works quickly and does not require gravity or squeezing- Can boiling water remove all chemical contaminants?
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No, only biological contaminants like bacteria and viruses- What do ultraviolet water purifiers kill?
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Bacteria, viruses, and some protozoa- What is the main purpose of a bear canister?
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To protect food from bears and other wildlife- What is the typical capacity of a standard bear canister?
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400 to 600 cubic inches (or larger)- How far should a bear canister be placed from your tent at night?
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At least 100 yards (or 30 meters)
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