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Fourth Quarter Vocab
All the vocabulary that you need to know for this quarter
| Question | Answer |
|---|---|
| Spiral Galaxy | A galaxy that has a center bulge with old stars and arms with new stars |
| Elliptical Galaxy | A galaxy shaped like an egg or ball |
| Irregular Galaxy | A galaxy with no defined shape |
| Milky Way | Our galaxy, a spiral galaxy |
| Galaxy | A large group of gas, dust, and billions of stars |
| Solar System | A group of planets that revolve around a star |
| Sun | The star at the center of our solar system |
| Core | The center of the sun where its energy is produced |
| Photosphere | The outer layer of the sun that we see |
| Sunspots | Dark, cool spots on the sun’s surface |
| Plages | Bright hot spots on the sun |
| Solar Flares | Bursts of fire that shoot out from the sun’s surface into space |
| Prominences | Loops of fire that go back to the sun’s surface |
| Corona | The halo like layer that we can only see during a solar eclipse |
| Diameter | A straight line that passes through the center of a circle or sphere |
| Mass | How much matter is in an object |
| Surface Gravity | The amount of gravitational pull experienced on the surface of an object |
| Length of Rotation | How long it takes an object to spin on its axis once, or one complete day |
| Length of Revolution | How long it takes an object to go around the sun, or one year |
| Rotation | The spin of an object on its axis |
| Orbit | The path that a body follows as it travels around another body in space |
| Revolution | The motion of a body that travels around another body in space |
| New Moon | None of the moon is visible. |
| First Quarter | Exactly half of the Earth |
| Full Moon | The entire side of the Moon facing the Earth is visible |
| Third Quarter | Exactly half of the Earth |
| Lunar Eclipse | The moon passes through the Earth’s shadow |
| Solar Eclipse | The moon moves between the sun and the Earth |
| Gravity | The force of attraction between objects, it keeps objects in orbit |
| Tides | The daily changes in the level of the oceans and other large bodies of water |
| High Tides | They occur on the side of the Earth facing the moon and on the opposite side. The water level is higher in these locations. |
| Low Tides | They occur between the locations of the high tides. The water is pulled away from these locations so the water level is low. |
| Earth’s Tilt | The cause of seasons on Earth |
| Winter | When the northern hemisphere is tilted away from the sun |
| Summer | When the northern hemisphere is tilted toward the sun |
Created by:
Marquart
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