Solar System Vocab

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Across
  1. 3. the full Moon passess into Earth’s shadow causing the moon to appear reddish in color when the Sun, Earth, and Moon directly line up; lasts from 1-3.5 hours
  2. 5. The act of traveling to new or unknown places to discover and learn about them.
  3. 7. The four planets farthest from the Sun: Jupiter, Saturn, Uranus, and Neptune. They are mostly made of gas and ice.
  4. 9. The materials or substances that make up an object. For example, Earth's composition includes rock, metal, water, and gases.
  5. 12. The force that pulls objects toward each other. It keeps us on the ground and holds planets in orbit around the Sun.
  6. 13. a limited representation of something that can help us understand its structure or how it works
  7. 14. the Sun and all of the objects that move around it
  8. 16. A map of the night sky that shows the positions of stars and constellations.
  9. 19. Something that repeats in a predictable way. In space, we see patterns like day and night or the Moon's phases.
  10. 22. the brightness of star perceived by an observer
  11. 24. A navigation tool with a magnetic needle that always points north, helping people find directions.
  12. 26. the Moon’s repeated pattern of changes in appearance due to its changing position relative to Earth and the Sun as it circles Earth
  13. 28. a natural satelite that orbits a planet; some planets have no moons and others have more than 60 moons
  14. 29. An event that occurs when the Moon passes between the Sun and Earth, blocking the Sun's light and casting a shadow on Earth.
  15. 30. to spin on an axis
Down
  1. 1. a complete turn or orbit around a center
  2. 2. a group of many rock objects located roughly between the orbits of the planets Mars and Jupiter
  3. 4. The science of figuring out where you are and how to get to where you want to go, often using stars, maps, or instruments.
  4. 6. Everything that exists, including all matter, energy, planets, stars, galaxies, and space itself.
  5. 8. a group of stars in the sky that has a certain shape and name
  6. 10. The four planets closest to the Sun: Mercury, Venus, Earth, and Mars. They are made mostly of rock and metal.
  7. 11. A navigation tool sailors used to measure the angle between a star or the Sun and the horizon to figure out their location.
  8. 15. The curved path an object takes as it moves around another object in space. The Moon orbits Earth, and Earth orbits the Sun.
  9. 17. The scientific study of stars, planets, moons, and everything else in space.
  10. 18. A giant ball of hot, glowing gas in space that produces its own light and heat. Our Sun is a star.
  11. 20. the star at the center of our solar system that supplies heat and light to Earth; its enormous gravity keeps the solar system in orbit
  12. 21. tool used to observe objects far away
  13. 23. any of the large celestial bodies that revolve around the Sun in the solar system
  14. 25. an imaginary line that a sphere rotates around
  15. 27. Related to the sky or outer space. Celestial objects include stars, planets, and moons.