TY  - BOOK
AU  - Midthun, Joseph.
AU  - Hiti, Samuel.
TI  - Gravity
SN  - 9780716614241
AV  - QC178 .M523 2012
U1  - 531/.14 23
PY  - 2012///
CY  - Chicago
PB  - World Book
KW  - Gravity
KW  - Juvenile literature
KW  - Juvenile works
N1  - Includes bibliographical references (page 31) and index; What is gravity? -- Measuring gravity -- Mass vs. weight -- How objects fall -- Friction -- Inertia -- Gravity and the sun -- Gravity and the moon -- Gravity and the solar system -- Black holes -- Why study gravity?
N2  - "A graphic nonfiction volume that introduces the force of gravity and its effects on Earth and the universe. Features include several photographic pages, a glossary, additional resource list, and an index"--
ER  -