Trumbauer, Lisa 1963- creator text New York Scholastic 2004 monographic 31 page : color illustrations ; 19 cm. A simple introduction to gravity, describing what it is and giving some effects of this force. H 440 Lexile H Raz-Plus by Lisa Trumbauer. Gravity Juvenile literature Gravity QC178.T78 2004 531.14 9780516258447 DLC 20250724145303.0 2841 eng