Across
- 1. Commonly known as the northern lights.
- 2. The force of attraction exerted by the sun to the planets, pulling them toward it, is one of the forces that hold the planets in orbit.
- 3. Is also known as a filament that appears as billowing arcs of rose-colored flame that occurs near the sunspots, usually during the solar cycle.
- 7. Is believed to be a fragment of an asteroid or remnant of a comet, and some say it is space debris made of stony metallic rocks.
- 8. Is about formation of planets from cosmic dust grains that collide and sick together.
- 9. Is made of gas or dust particles, or both.
- 10. Refers to the Sun itself and every celestial object that revolves around it, including the eight planets and their natural satellites, dwarf planets, asteroids, comets, meteoroids etc.
- 12. Holds the majority of the total mass of the solar system.
- 14. The word "chromo" in its name means color which refers to the red-dish glow around the photosphere which is observed using an instrument during a solar eclipse.
- 15. The scientists estimated that there are more than 750,000 asteroids found between the 350 million miles space between Mars and Jupiter, known as the.
- 16. Are bright spots also known as "little torches" that exhibit sharp eruptions that last for about 15 minutes to 1 hour, which are caused by concentrations of magnetic field lines that create extra heat.
- 19. A meteoroid that enters the Earth's atmosphere is known as.
- 20. It is the outermost layer of solar atmosphere which consists of hot gases which arc out from the solar disk and ionized gases found in its outer part that escape the gravitational pull of the sun.
- 22. It is the inner layer of the sun's atmospshere and the main body of the sun.
- 23. Are the largest rocks celestial bodies in space.
- 24. Cover the entire photosphere's surface expect those areas that are covered by sunspots.
Down
- 1. These are rocky celestial bodies with elliptical orbit around the sun.
- 4. When the remains of the meteoroids reach Earth's surface, they are called.
- 5. Was proposed by Marquis De Laplace, a French astronomer in 1976.
- 6. The force exerted that keeps the planets moving and spinning.
- 10. Appear as the dark spots because they are the cooler areas on the photosphere where the temperature drops to about 3,700 K.
- 11. Are considered as the most tremendous explosion or eruptions.
- 13. Is believed to be solid containing the chunk of dust, ice or frozen gases, water vapor, and other materials.
- 17. surrounds the nucleus and is composed of gas and small bits of rocks and dust.
- 18. According to a British astronomer named Fred Hoyle, states that the Sun once had a companion star which exploded when it collided with the Sun.
- 21. The bright streaks of light that dart the night sky are.