Silver Burdett/

Science: Understanding Your Environment/

Skin Bone and Muscle p. 241/

1975/

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/

S4N22/

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/-/You have probably fallen*- down and skinned*D2 your knee or elbow. /-/[ALWhen you did*D1 this ]you broke*D1 the skin. /-/Your mother or father probably gave*D1 you first aid. /-/They probably put*D1 medicine (on the broken=P--01 skin. )/-/Why did they do*D1 this? /-/The skin is*N1 a covering [JRthat protects*D1 your body. ]/-/It keeps*D1 out bacteria [JRthat could cause*D1 disease. ]/-/[ALIf you fall*- down and break*D1 the skin, ]bacteria can enter*D1 your body. /-/Some medicines kill*D1 bacteria [ARuntil your skin grows*- back or heals.*- ]/-/Have you ever broken*D1 one (of your bones? )/-/[ALIf*E not, ]do you know*D1 someone [JRwho has had*D1 a broken=P--01 bone? ]/-/Do*D1 you, or does the other person, still have*D1 the broken=P--01 bone? /-/[ALIf the bone was broken*P more (than a month )ago, ]it probably has healed.*- /-/The broken=P--01 bone will grow*- back together, or heal,*- just (like a break )(in your skin. )/-/Have you ever had*D1 a bruise? /-/[ALIf*E so, ]one (of your muscles )was damaged.*P /-/[ALIf you had*D1 a bruise (on one )(of your leg muscles, )]it may have been*A1 painful to walk.=IDS020 /-/Would you have*D1 such a bruise a month=U--07 [ARafter the muscle was damaged?*P ]/-/A damaged=P--01 muscle will heal*- (like damaged=P--01 skin and bone. )/-/The fact [APthat skin, bone, and muscle will heal*- ]shows*D1 something important (about your body. )/-/Skin, bone, and muscle are*N1 living=P--01 parts (of your body. )/-/They grow*- and need*D2 food and oxygen. /-/They need*D1 the same care (as any other part )(of your body. )/-/Your skin is*-1P (like a double wrapper )(on a package. )!!!!!!!!