00946nam a2200241 i 4500991002522949707536040421s1991 nhu 000 0 eng d0435083090b12935219-39ule_instDi.S.Te.B.A.eng371.2620Doris, Ellen486799Doing what scientists do :children learn to investigate their world /Ellen DorisPortsmouth :Heinemann,c1991xii, 194 p. :ill. ;26 cmIncludes bibliographical references (p. 171-190)ScienceStudy and teaching (Elementary)United States.b1293521921-09-1021-04-04991002522949707536LE003 371 DOR01.01 (1991)12003000044775le003-E22.54-nm 00000.i1353015x20-05-04Doing what scientists do281923UNISALENTOle00321-04-04ma -engnhu01