| A | B |
|---|
| antenna | 1. long thin feelers on the head of many insects 2. a metal rod or wire used to send and receive radio and tv messages |
| balance | 1. a state of being firm and steady 2. to stay in a steady position without falling |
| boulder | a large, rounded rock, resting on or in the ground |
| cliff | a steep, high rock face with a sharp drop to the ground below |
| joint | the place where two parts meet or come together |
| machine | an object that is used to do certain kinds of work |
| motor | an object that provides the power to make something move or do work |
| muscle | part of the body that can be stretched or tightened to make thke body move |
| planet | a large object in space that moves in a regular path around the sun or some other star |
| slope | a surface, a line, or a piece of land that is higher at one point than the another |
