| A | B |
| prey | to hunt animals for food |
| fearsome | frightening |
| species | group of animals or plants that are alike in many ways |
| habitat | the place where a plant or animal usually lives |
| eyesight | vision |
| migration | movement from one place to another when seasons change |
| obstacle | something that gets in the way |
| hibernate | to spend the winter asleep |
| distinguish | tell the difference between |
| rodent | a mammal that gnaws with its teeth, such as a mouse, bat, or squirrel |
| capsule | enclosed part of the a spacecraft |
| aerial | in the air |
| liftoff | the act of leaving the ground |
| dedicated | loyal |
| instructed | taught |
| commander | leader |
| cockpit | area where a pilot works |
| sensation | feeling |
| assignment | job to be carried out |
| gravitational | related to gravity |