| A | B |
|---|
| Examples of patterns | Phases of the moon, rising and setting of the sun |
| Solar eclipse | Moon blocks the sun's light |
| Lunar eclipse | Earth casts a shadow on the Moon. |
| Stone Henge | Length of football field, located in England, made of stones |
| Chichen Itza | located in Mexico, 365 steps total, has shadow of snake on it during the equinox |
| Astrolabe | star map drawn on a metal plate |
| Sextant | Measures the angle between the horizon and a point in the sky |
| Galileo Galilei | discovered moon has mountains, sun spins, and the earth revolves around the sun |
| Isaac Newton | developed the reflecting telescope |
| Telescopes | Work because they gather light |
| Keck I and Keck II | Two huge twin telescopes |
| Radio Telescopes | Uses a bowl-shaped dish |
| Hubble and Chandra X-ray Observatory | Examples of Space telescopes |
| Equinox | Time of year when day and night are of equal length |
