Linnaeus only recognized 2 biological kingdoms; everything was either plant or this
It's composed of the brain & spinal cord in vertebrates; scientists abbreviate it CNS
Muscles may connect directly onto bones or connect to them by these
A termite's intestinal tract can break down this plant substance; yours can't
The first stage of a multi-stage rocket, or an energetic supporter of a cause
Rockets get their forward motion from this, the JP in Cal Tech's JPL
Rockets developed by William Congreve produced the "red glare" this man saw on Sept. 13-14, 1814
NERVA was a U.S. project to develop a rocket propelled by this type of "n"ergy
A rocket's thrust may be measured in units named for this man whose laws of motion explain rocketry
The SO in SONAR stands for this word