| A | B |
|---|
| solar system | a group of objects that move around a central star |
| galaxy | the solar system is part of this |
| milky way | the name of the galaxy that the solar system is part of |
| sun | the central star of our solar system that is a glowing sphere of gas |
| sun spots | the dark spots on the sun's surface |
| prominence | red streams and loops of gases that seem to shoot out from the sun |
| flare | flashes of light on the surface of the sun |
| planets | large objects that move around the sun |
| Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto | nine planets in order beginning with the one closest to the sun |
| asteroids | small rocky objects that move around the sun |
| asteroid belt | the "rocky area" between Mars and Jupiter |
| comet | a small mass of dust and ice that orbits the sun in a large, oval-shaped path |
| rotation | the spinning of a planet on its axis |
| revolution | orbit of the planets around the sun |
| partial solar eclipse | part of the sun's light is blocked out |
| solar eclipse | occurs when the moon is directly between the sun and Earth, The sun's light is blocked out |
| people who are in the shadow cast on Earth by the moon | Can see a solar eclipse |
| lunar eclipse | occurs when the moon is caught in the shadow of Earth |
| path of totality | the size of the shadow cast on Earth during a solar eclipse. It is only 50 - 200 miles wide |
| red | the color the moon appears to be during a lunar eclipse because all the light coming to the sun is not blocked |
| people on the side of the earth that is facing the moon | can see a lunar eclipse |
| the tilt of the earth on its axis as it rotates and revolves | causes seasons |
| inner planets that are closest to the sun and have a rocky and dense composition | Mercury, Venus, Earth and Mars |
| outer planets are the other 5 planets | Saturn, Jupiter, Uranus and Neptune |
| giant or gaseous planets | outer planets primarily made of gas, have rings and are very large |
| Mercury and Venus | planets that do not have moons |
