Astronomy
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31 terms
Terms | Definitions |
|---|---|
 What is gravity? | It keeps the planets orbiting. |
| What is a solar flare? | A massive eruption from the sun's surface that interferes with radio waves and causes electrical interference |
| Describe the asteroid belt. | Separates the inner and outer planets. It was formed when the solar system was formed. |
| Where is the asteroid belt located? | Between Mars and Jupiter |
| Describe the outer planets. | The outer planets are cooler in temperature and are usually gas. |
| Describe the inner planets. | The inner planets are warmer in temperature and are all solids. |
| Why are the moon and planets visible? | Sunlight is refelected off of them |
| Describe the lunar eclipse order. | Sun-Earth-Moon |
| Describe the solar eclips order. | Sun-Moon-Earth |
| What is a meteor? | A rock that is falling into an atmospheere and is also known as a Shooting Star |
| Describe a comet. | It is made up of mostly ice and dust and begins to met when orbiting too close to the sun. |
| Describe an umbra. | Total shadow-darkest shadow during an eclipse |
| Describe a penumbra. | Lighter part of the shadow during an eclipse |
| What causes the seasons? | The tilt of the Earth's axis |
| Why do we see the moon? | It reflects sun's light. |
| How does the sun get it's energy? | From the fusion of hydrogen atoms in the sun's core |
| Do inner or outer planets orbit the sun more quickly? | Inner planets |
| What are the benefits of space technology? | Artificial limbs, commication devices, cures for diseases, fire suit |
| Where should optical telescoped be located? | On mountain tops in rural areas and away from city lights and pollution |
| Who was the first person to step on the moon? | Neil Armstrong |
| What is the name of our galaxy? | Milky Way Galaxy |
| What is the nearest galaxy to us? | Andromeda |
| List the celestial bodies in order of their size. | Universe, galaxies, solar system, star, planet, moon |
| What holds everything in space together? | gravity |
| Describe a spiral galaxy. | It has arms and is the youngest. |
| Describe an elliptical galaxy. | Oval shaped and middle aged |
| Describe an irregular galaxy. | The oldest galaxy with no definite shape. |
| How is the moon different from a planet? | It orbits a planet |
| What causes the tides? | The moon's gravitational pull |
| How is the life of a star determined? | By it's mass |
| What is the current space station? | The International Space Station |
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