Saturday, March 21, 2015

热Heat (五年级科学)

第八课:热Heat


      rè  yǔwēndù
· 热与温 度(Heat and temperture)
      rè duì wùzhì de yǐngxiǎng
· 热对 物质 的     影 响(Effects of heat on matter)






    wēndù  wùzhìshòurè  hòuwēndù shàngshēng  wùzhìsanrè  hòuwēndù xiàjiàng
[1]温 度:(A)物质  受热后 温度      上升。 物质  散热后 温度下降。(When matter is heated temperature rises, when cooled temperature drops)



    cè liangwēndù  cèliangyí  qì wēndùjì biāozhǔndānwèi    shèshìdù
[2]测量  温度:(A)测量仪器:温度计(thermometer) (B)标准单位:摄氏度(’C)(Standard unit for temperature is degree Celcius)


    rè  duìwùzhìde yǐngxiǎng
[3]热对物质的      影响(Effects of heat on matter)

         wùzhìshòurè péngzhàngwùzhì yùlěngshōusuō
(A)物质受热   膨胀。物质遇冷 收缩。(When matter is heated, it expands; when cooled, it contracts)

         rèzhànglěngsuō  yuánlǐ   zàishēnghuózhōngde  yingyòng
(B)热胀冷缩             原理在生    活中         的应用

"热膨胀,遇冷收缩"




       
  huǒchētiěguǐzhī jiānliú  yǒudekōngxì 
· 火车铁轨之间 留有 的空隙(gaps in railway tracks)







            diànxiàngānshàngsōngchí de  diànxiàn
· 电线  杆上             松弛的            电线(more sagging during hot day)
       

  wēndùjì lǐ yètǐ  de shēngyǔjiàng
温度计    里液体的                   升与降(Liquid in a thermometer rises and falls)

Metal expands when heated.


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Reference:

[.]  铁腕遇热膨胀:
Metal expands when heated.




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[.] What is temperature?

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4 comments:

  1. 原来“热”这单元时很有趣又容易!

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  2. This comment has been removed by the author.

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  3. Simplifying the learning method also find http://www.kidsfront.com/academics/class/11th-class.html

    ReplyDelete