ࡱ> 796_ Rbbjbj2bbnn8l00000xxx$@-xxxxx00HKhhhxR00hxhh:,,0ptHjX a0bR440xxhxxxxxhxxxxxxxxxxxxxxxxn : DN Nirt|,{NJ\'Yf[uirtf[/gz[vDryingInvestigate the drying process of a vertical wet paper sheet. Howdoes the boundary of drying move?xvzNGrWvn~]vr^qǏ z0r^q:SWvLu\YUOyR0 Twisted ropeHold a rope and twist one end of it. At some point the rope will form a helix or a loop. Investigate and explain the phenomenon.cOON9h~P[v^mbfvQNz0(WgNe;R ~P[\ubsb_beb_0Ջxvzv^ʑُNsa030Water riseFill a saucer up with water and place a candle vertically in the middle of the saucer. The candle is lit and then covered by a transparent beaker. Inv ,0<> D F ^ ` b ZF<>@}l]}hTh]|B*CJaJph hTh]|B*CJaJo(phh]|CJaJUhTh]|5CJaJhTh]|5CJaJo(hZ(h]|CJaJo($hZ(h]|CJKHOJQJ^JaJhZ(h]|CJaJhZ(h]|5CJaJhZ(h]|5CJaJo(hD/CJaJo(h]|CJaJh]|CJaJo($ .0> D F ` b ZWD^`gd]| gVD^ggd]|iWDj^i`gd]| ;VD^;gd]|$h1$WD^h`a$gd]|hWD^h`gd]|  & FWDgd]|$a$gd]|$a$gd]|estigate and explain the further phenomenon.(WN*NxP[-Nňn4lv^(W-N.YYWv0WceQN9h!p0pq!p6qT(uN*NfvpogiOO[0Ջxvzv^ʑُNsa0Magnet and coinPlace a coin vertically on a magnet.Incline the coin relative to the magnet and then release it. The coin may fall down onto the magnet or revert to its vertical position. Study and explain the coin s motion.xR\Nglx^Wv0W>e(Wx N0YgTxeT>Peُglx^Tʑ>e[ lx^SO N=0Rx N bb`YWvvMOn0Ջxvzv^ʑlx^vЏR0lavNS wы_{EQRSS >DFJLPRVX\^`bgd]|gd]|hWD^h`gd]|  & FWDgd]|@DFHLNRTXZ`bhLjhLUhphZ(h]|CJaJ 0182P. A!"#$%S j 666666666vvvvvvvvv666666>6666666666666666666666666666666666666666666666666hH6666666666666666666666666666666666666666666666666666666666666666662 0@P`p2( 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p8XV~ OJPJQJ_HmH nHsH tHJ`J ]|cke $1$a$ CJKH_HaJmH nHsH tH$A $ ؞k=W[SOBiB 0nfhǼ3xN>UWL0Č߫߿z}rx{h9T8T/χ?xY'~3S~O_|w)ӈHt=a+d NG1-RlƁ1RJwT蠯M1K"o he˓ێ½PL-|%EhY7'qP.\L=dqķ3Iofi.ñBRb-JP_pG ݢiKtdӌhFio7;7Q2ȾD>a/Q>XW ˔M_uHq)h +:Viw4rBqϫ"r!2laCbU|!8^8>ܠ,AбVt׎~ls14_=,ɬožTV G"ѦbH'.4x޵w-ϷE|F;v`b3"G 'e\fHO '$i_wp >*8i&LY%\,xҕ= r6f 3Tʅ):ªZKLs&C Mܛ0 [˫p@ע`j۽7 YHxHicT5Ar@HZAZC}i' RQ\m,zo,gQu{Y\,Nר/=L _.̇Y7C6-fSh62"5NHT[X65̫4X%Yֳ2fkhi~tCKF#b +w1m|4`!:U!p5a:~{4mmio ήc8mDJpSǹ橠V1?#Si?3E'pS2W`qB]( 08w nA[s)k8= Aa?R dڒɾcUӽ˲d)#Queb}C!&i0>4S7{z F} 4sKvUKoȳh~1jYUVH5U8Vk;֜L9ŰD ?*|FL"A3>g]dm2iVֵ褽mg    @b b T # @H 0(  0(  B S  ?]dPSWZ:;|33s31]-dtSU:Y_ܮdh^h`o(0H\^H`\)\^`\.\^`\.4\^4`\) \^ `\.| \^| `\. \^ `\)\^`\.h^h`o(0H\^H`\)\^`\.\^`\.4\^4`\) \^ `\.| \^| `\. \^ `\)\^`\.SUY_y{        eB        ]|\mL(D/p@(XX XUnknownG*Ax Times New Roman5Symbol3. *Cx Arial;([SOSimSun7.@ CalibriA$BCambria Math qhW ,'W ,'!?!%),.:;>?]}    & 0 2 3 : !6"000 0 00000006:>@DZ\^ =@\]^$([{  0 0 000000Y[];[2CHX  $P]|2!xx len ovouser  Oh+'0px   len ovo Normal.dotmuser2Microsoft Office Word@@2^fH@2^fH՜.+,0 X`px china   !"#$%'()*+,-/0123458Root Entry F@ tH:Data 1Table WordDocument2SummaryInformation(&DocumentSummaryInformation8.CompObjn  FMicrosoft Word 97-2003 ĵ MSWordDocWord.Document.89q