TY  - DATA
ED  - Discovery Channel School
ED  - Discovery Communications Inc.
TI  - Forces and gravity
PY  - 2001///
CY  - [Bethesda, Md.]
PB  - Discovery Communications Inc.
KW  - Gravity
KW  - Juvenile literature
KW  - Motion
KW  - Force and energy
N1  - Teacher's guide in PDF and Microsoft Word format
N2  - Discusses forces such as air pressure, inertia, and gravity, and how they affect daily life. Includes related activities
ER  -