Applied 1 Lifecare Changes in Temperature

Gapfill exercise

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   constrict      dilate      evaporates      evaporation      faeces      less      respiration      respire      shiver   
Humans have a core body temperature of about 37oC.
They gain energy from which releases heat, and from their surroundings on hot days.
They lose heat energy of their surroundings are cold, and also through urine and . Evaporation can also cool the body down.

When it is hot, your blood vessels near the surface of the skin and your skin goes pink. Energy is passed from the blood to the air.
You can also use hats and the shade to stay out of the hot sun, use a fan to increase or use cold drinks.
When you are hot you sweat - this off your skin and transfers energy away from the blood and body.

When you are cold you - this makes the muscles move and more - releasing more heat energy through respiration.
When it is cold, the blood vessels and less blood reaches the skin surface. The means that energy is transferred to the air.
You can also eat or drink warm foods to warm yourself up or put on warmer clothes.