AU  - COHEN,MICHAEL R.
AU  - COONEY,TIMOTHY M.
AU  - HAWTHORNE,CHERYL
AU  - MCCORMACK,ALAN
AU  - PASACHOFF,JAY
AU  - PASACHOFF,NAOMI
AU  - ARHINES,KAREN
AU  - SLESNICK,IRWIN
TI  - DISCOVER SCIENCE, GRADE 4
T2  - DISCOVER SCIENCE
SN  - 0673356884
U1  - 500/COH 
PY  - 1993///
CY  - ILLINOIS, USA
PB  - SCOTT, FORESMAN AND COMPANY
KW  - SCIENCE
KW  - EDUCATION
KW  - FLOWERING PLANTS
KW  - ANIMAL BEHAVIOR
KW  - FOOD CHAINS, FOOD WEBS
KW  - ANIMAL AND PLANT ADAPTATIONS
KW  - MEASURING MATTER
KW  - WORK AND ENERGY
KW  - ELECTRICITY AND MAGNETISM
KW  - LIGHT AND SOUND
KW  - MEASURING WEATHER CONDITIONS
KW  - CHANGES IN LANDFORMS
KW  - OCEANS
KW  - MOVEMENT IN THE SOLAR SYSTEM
KW  - DIGESTION AND CIRCULATION
KW  - THE BRAIN AND SENSE ORGANS
ER  -