...of flame__|. Noise Level | |Air hole | ( regular/irregular )..| (quiet/ noisy )| |______.|________________.|_________..| ----------------------------------------------------- | Closed...
...不規則的 8.quiet flame 靜焰 9.non-luminous 無光的 10.regular 規則的 11. noisy flame 噪聲焰 12.strilke back 縮火 / 回擊 13.green flame 綠焰 14.unburnt gas...
... yellow 4.The blue flame is quiet but the yellow flame is noisy 5.The blue flame has a regular shape but the yellow flame has...
...non-luminous(不光亮). 3.Yellow flame is quiet,blue flame is noisy . 4.Blue flame is hotter than yellow flame.
...the air hole of the Bunsen burner is opened, it will become noisy . When the air hole of the Bunsen burner is closed...
...flame(air hole is close) l hotter l Less hotter l noisy l Quite l non-luminous l luminous l irregular l regular A luminous...
...hole is close) l hotter l Less hotter l noisy l Quite l non-luminous l luminous l irregular l regular...
1.A Measuring tape 2.A Measuring tape 3.C Stop-watch 4.B 2009-10-04 19:51:28 補充： 1.Measure the thickness of 100 sheets and divide it by 100. 2.Wing is turns of wire on a pencal and measure the leagth of 10...
2)C.(2) and (3)only 3)B.(1) and (2)only 4)A.we may get an electric shock 5)C.wash our hands under running water. 6)D.Beaker can be used to accurately measure 10cm3 of water. 7)D. Rice gives us energy.