TY  - BOOK
AU  - Hills, Lisa,
TI  - Gravity
T2  - Sci-hi. Physical science 
SN  - 9781406210705 (hbk.)
U1  - 531.14 HIL 23
PY  - 2009///
CY  - England
PB  - Raintree
KW  - Gravity
KW  - Juvenile literature.
KW  - Juvenile works.
N1  - Includes bibliographical references and index.; What is gravity? -- What makes gravity work -- Measuring gravity -- Mass and weight -- What do you weigh? -- Distance weakens gravity -- A young genius -- Gravity affects inertia and acceleration -- Newton's law #1 -- Newton's law #2 -- Gravity and acceleration -- Gravity equation -- Gravity at work -- Satellites -- Streaking meteors -- Pulling particles -- Can the force of gravity change? -- Gravity turned off -- Double gravity -- The solar system -- Our star -- The moon -- Galileo -- The telescope man -- The pulling moon -- Daily tides -- Spring tides -- Space weight -- Gravity keeps objects in orbit -- Orbiting velocity -- What is microgravity? -- Gravity monsters -- Scientists in space -- Dr. Charles Dermer, astrophysicist -- Space riddles -- New ideas about gravity -- Your heart is a gravity pump -- Warp speed -- Bugs in space -- Project in action #11 microgravity balloon.
ER  -