热
Published on Nov 18, 2015
SJKC, science, heat, year 5, primary school
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PRESENTATION OUTLINE
物质受热后温度上升
Wùzhí shòurè hòu wēndù shàngshēng
Temperature rises when a substance is heated
Photo by ilmungo
物质散热后温度下降
Wùzhí sànrè hòu wēndù xiàjiàng
Temperature drops when a substance is cooled
Photo by Kevin Saff
热胀冷缩原理在生活中的应用
Rè zhàng lěng suō yuánlǐ zài shēnghuó zhōng de yìngyòng
Thermal expansion and contraction principle in life
Photo by Pandiyan
火车铁轨之间留有的空隙
Huǒchē tiěguǐ zhī jiān liú yǒu de kòngxì
Gaps left in between train tracks
Photo by ecstaticist
电线杆上松弛的电线
Diànxiàn gān shàng sōngchí de diànxiàn
Slack wire poles
Photo by Scott Hess
温度计里液体的升与降
Wēndùjì lǐ yètǐ de shēng yǔ jiàng
Rise and fall in a liquid thermometer
Photo by Viktor Hertz
