it gives ___8___ your sense of touch. So ___9___ you can imagine，if your skin gets burned it can be very serious. First aid is a very important first step in the ___10___ (treat) of burns.

Causes ___11___ burns

You can get burned by a ___12___ (various) of things：hot liquids，steam，fire，radiation (by being close to high heat or fire，etc)，the sun，electricity ___13___ chemicals.

Types of burns

There are three types of burns. Burns ___14___ (call) first，second or third degree burns，depending on ___15___ layers of the skin are burned.

• First degree burns These affect only ___16___ top layer of the skin. These burns are not serious and should feel better ___17___ a day or two. Examples include mild sunburn and burns ___18___ (cause) by touching a hot pan，stove or iron ___19___ a moment.

• Second degree burns These affect ___20___ the top and the second layer of the skin. These burns are serious and take a few weeks ___21___ (heal). Examples include severe sunburn and burns caused by hot ___22___ (liquid).

• Third degree burns These affect all three ___23___ (layer) of the skin and any tissue and organs ___24___ the skin. Examples include burns caused by electric shocks，burning clothes，___25___ severe petrol fires. These burns cause very severe injuries and the victim must go to hospital ___26___ once.

Characteristics of burns

First degree burns

• dry red and ___27___ (mild) swollen