Beaker Small 320×143 Medium 640×287 Large 1024×459 Download Tiff Original 2400×1076 | (298.0 KB) Description This illustration shows a beaker with chemical changes inside, which does not allow escape or access or material. The weight inside does not alter. Keywords Beaker Galleries Chemistry Apparatus Source: Alexander Smith, Intermediate Text Book of Chemistry (New York: The Century Co, 1920) 14