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