Mechanisms of Heat Loss
A significant source of heat loss happens when warm air is exhaled. This is referred to as ______________.
Respiration
True or false? When going on a weekend hiking trip, 90% of what you bring should be clothes.
False
A base layer is used mainly for regulating body temperature and ___________ away moisture from the skin.
Wicking
True or False? It is highly recommended to hike with rain boots.
False
__________________ are good to bring on camping trips to protect the eyes from harmful UV rays.
Sunglasses
This is the most common mechanism of heat loss. It happens when our skin or clothing is wet with sweat.
Evaporation
True or False? Dressing up with the layering system is recommended for all hiking trips, no matter the season.
True
The mid layer is used to retain body heat. This is also referred to as an ___________ layer.
Insulating
_______________________ are the best option to use for hiking excursions. They are good for all types of weather, have a good grip and a good support.
Hiking boots
______________ are good to bring to keep your hands warm and to protect them when gathering wood.
Padded gloves
____________ is when the body loses heat by directly transferring it to a colder surface. This could happen from sitting on the cold ground, for example.
Conduction
True or False? In the layering system, there are 5 types of layers.
False. There are only three: base layer (wicking), mid layer (insulating), and outer layer (shell).
Even though these shoes are comfortable, they do not have the best grip on all surfaces. Wearing them also increases your risk of sustaining an injury on long hiking trips.
Running shoes/Sneakers
It is recommended to bring ______ to protect your head and keep it warm during the cold nights.
A hat
____________ is when the body loses heat from the wind.
Convection
This piece of clothing should be changed the most often seeing as it gets wet with sweat often. Hint: think of footwear.
Socks
What is the best material for camping clothing?
Polyester or any synthetic fabrics
This type of shoe is only recommended to wear around your campsite seeing as they offer no support, they have no grip and have a high risk of injury when hiking.
Sandals
___________ are garments worn over shoes and lower pant legs.
Heat loss in the form of emission of infrared rays.
Radiation
Long sleeves and pants are about more than staying warm. Provide one more benefit of longer clothing.
Protection against ticks, protection against UV rays, protection against direct skin contact with poison ivy
What clothing material is NOT recommended for use in outdoor related activities? Why?
Cotton, because when it gets wet it stays wet for a while. This causes heat loss through evaporation.
What are some qualities that describe the ideal hiking footwear? Name at least two.
Comfortable, light weight, water proof or water resistant, good grip, have good support for your ankles, breathable
A _________ can be used as a head accessory to keep it warm. It can also be used to assist in first aid in emergency situations.
Bandana