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Keeping Warm And Cooling Down.

Published on Nov 27, 2015

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1.

STAYING WARM AND KEEPING COOLING DOWN

  • Your body needs to be 37 degrees Celsius not much hotter or colder.
  • When you are cold your brain will make you heat up by making your muscles shiver
  • When you are too hot, blood flows to the skin making you look red.
Photo by Ottoman42
2.

ANIMAL ADAPTATIONS

  • When you are cold your hair stand up to trap the heat to keep you warm.
  • Some animals are adapted to cold climates
  • Seals have a layer of blubber and two layers of fur. One is waterproof and the other traps lots of air
  • Huskies also have two layers of fur to trap lots of air.
  • The air trapped in fur is an insulator keeping the animals warm
Photo by spencer77
3.

TRAPPING HEAT IN THE HOME

  • An igloo is warm even though it is built out of ice.
  • The door is low down.
  • It is hard for people to get in and out.
  • The hot air rises (convection) and cannot escape out the door
  • Snow is a good insulator because it has pockets of air.
Photo by Gammalong
4.

COOLING DOWN

  • When int is hot your wear light coloured clothes to reflect the heat (radiant heat)
  • Camels only have fat on their humps so heat escapes from the rest of their bodies
  • Every time we move we generate heat
Photo by ***Bud***
5.

SPECIAL CLOTHES

  • Space suits have heating and cooling to keep the astronaut safe
  • When it is hot, cool water is pumped through the suit to keep the astronaut cool
  • When it is cool, warm water is pumped through the suit to keep him warm
  • Wet suits trap a layer of water, the body warms it up keeping the diver safe sand warm
  • Dry suits trap a layer of air next to the skin. The air is an insulator, so is rubber.
Photo by torugatoru

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