00725cam a2200229 4500 410603974 TxAuBib 20200116120000.0 901129s1991||||||||||||||||||||||||eng|u 90026457 //r90 9780895773821 $24.00 0895773821 $24.00 TxAuBib Hann, Judith. How science works / Judith Hann. Pleasantville, N.Y. : Reader's Digest Association, 1991. 192 p. : col. ill. ; 29 cm. Includes index. 20200116. Scientific recreations. Science Experiments Popular works.