| A | B |
|---|
| compass | instrument that uses a small magnet to show which direction is north (N) |
| rotation | the spinning motion of an object on its own axis |
| revolution | the movement of an object around another object |
| apparent movement | an illusion that occurs when we perceive objects moving that are standing still |
| night | the time during its rotation when Earth faces away from the Sun, and it is dark |
| axis | an imaginary line around which an object spins or turns |
| day | the time during rotation when Earth faces the Sun, and it is lighted |
| orbit | the path of an object as it revolves around another object |
| sun dial | instrument that measures the time of day by using the position of the sun |
| shadow | a dark area caused when an object blocks light falling on a surface |
