science outline chemistry air lab laboratory physics apparatus thermal expansion experimant Thermal Expansion Of Air clip art 熱 擴大 灰度 熱空氣膨脹的剪貼畫
Round bottemed flask with bung and tube. black and white diagram / outline. Also with ink drop to show thermal expansion From GENERAL SCIENCE BY BERTHA M. CLARK, PH.D. (Gutenberg EBook 16593) 瓶 桶口 圓 bottemed 圓底燒瓶
science diagram round burner flask air bubbles grayscale trace heat classroom experiment bunsen bottemed thermal expansion Thermal Expansion Of Air clip art 熱 擴大 灰度 熱空氣膨脹的剪貼畫
This is clipart converted and broken apart that has been released into the public domain because the document says so, and its from NASA, a USA government agency. The publication is called "The Brain in Space:" http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/The.Brain.in.Space.html 美國國家航空航天局 空間 科學 58294main_The.Brain.in.Space-頁面-47-孩子-課堂
black science diagram simple white cartoon burner lineart classroom bunsen Bunsen Burner Lineart clip art 本生燈 燃燒器 藝術線條 本生燈藝術線條剪貼畫
black bottom science diagram white round flask lineart tube trace classroom experiment with bottemed bung Round Bot Flask clip art 一輪 瓶 桶口 圓 Bot 燒瓶剪貼畫