Earth and Space Science Section 1

12345678910111213141516171819
Across
  1. 2. The third planet from the Sun and the one where we live. Earth orbits around the Sun.
  2. 6. Comparing the distance between different stars or objects. This helps explain why some stars look brighter than others.
  3. 8. The relationship between sizes or distances. It helps us understand how stars compare in brightness and distance.
  4. 9. A reasoned discussion where evidence is used to support a point. In science, arguments help explain observations and discoveries.
  5. 12. A giant ball of hot, glowing gases that gives off light and heat
  6. 16. The amount of space between two points
  7. 17. Related to stars. For example, brightness
  8. 18. How bright a star looks from Earth. It can vary based on how far the star is from us.
  9. 19. Scale A way to measure and compare the brightness of stars. It shows how stars vary in their appearance from Earth.
Down
  1. 1. Any natural objects in space, such as stars, planets, moons, and asteroids.
  2. 2. Information or data used to support a claim or argument. Evidence helps us understand why the Sun looks brighter than other stars.
  3. 3. The size or extent of something. In astronomy, it can refer to the size of stars or the distance between celestial objects.
  4. 4. A representation used to explain how something works. In science, models help us understand concepts like the brightness of stars.
  5. 5. Year A unit of distance used to measure how far light travels in one year. It helps scientists describe the vast distances between stars.
  6. 7. The scientific study of celestial objects and phenomena beyond Earth’s atmosphere.
  7. 10. All of space and everything in it, including stars, planets, galaxies, and other celestial objects.
  8. 11. The amount of light that an object gives off.
  9. 13. A huge system of stars, dust, and gas held together by gravity. Our solar system is part of the Milky Way galaxy.
  10. 14. Sphere An imaginary sphere that surrounds Earth, on which stars and other celestial objects appear to be projected.
  11. 15. The light and energy that comes from the Sun. It is essential for life on Earth and helps us understand the brightness of stars.