Across
- 1. one of the inner planets
- 4. the type of star the sun will turn into
- 8. the reason other planets arent habitable
- 9. name of our galaxy
- 12. Iron sunk to the middle of the planet and lighter minerals
- 14. the lines that go horizontal on the globe
- 17. what controls the tide on earth
- 18. how the moon was made
- 19. the scientist that helped find the origins of life
- 20. the name of small planets
- 22. how to find the age of the earth
- 23. in how long the sun will turn into red giant
- 24. when the universe first started
- 26. what the earths core is made of
Down
- 2. planet with rings around it
- 3. the name of what the earth was when it was first made
- 5. the lines that go vertical on the globe
- 6. one of the reasons how the ocean got formed
- 7. how long ago was the first surface of the earth made
- 10. name of the dwarf planets
- 11. age of the oldest fossils
- 13. lasted 50-70 million years
- 15. what makes a magnetic field around the earth
- 16. Ocean where life first arose
- 21. Early steps of organisms forming from organic building blocks
- 25. what is the sun