Incoming Resources
- Gravity, written and illustrated by Jason Chin
- Mass at work, Lauren Kukla ; consulting editor, Diane Craig, M.A./reading specialist
- Why do things fall down?, Harriet Blackford ; illustrated by Mike Henson
- La gravedad, Grace Hansen
- On gravity, a brief tour of a weighty subject, A. Zee
- Gravity, by Nick Hunter
- Black holes, tides, and curved spacetime, understanding gravity, Benjamin Schumacker
- Quantum space, loop quantum gravity and the search for the structure of space, time, and the universe, Jim Baggott
- Gravity, George Gamow ; illustrations by the author