Across
- 2. the type of boundary that creates faults
- 6. the number of atoms in one molecule of water
- 7. the number of valence electrons all halogens have
- 10. the number of organisms in a habitat
- 11. a solid that forms when two liquids are mixed together at room temperature
- 15. the moon phase during which a lunar eclipse can also occur
- 18. dense central region of an atom
- 19. the force that is equal and opposite to an action force
- 20. tectonic plates move at this speed per month
- 23. the scientist that created the periodic table
- 24. when you are in a car, it stops and you fly forward because of this
Down
- 1. a molecule with two or more of an identical atom
- 3. a curved line on a distance-time graph
- 4. forms trenches and volcanoes
- 5. this type of mark on a topographic map shows a depression
- 8. smallest tidal range
- 9. the second energy level can fit this many electrons
- 12. the kingdom of multicellular autotrophs
- 13. the number of energy levels of all elements in period 4
- 14. the sum of all forces acting on an object
- 16. when offspring are produced by asexual reproduction they are
- 17. causes biological weathering of rock into soil
- 21. elements that donate electrons
- 22. occurs when a super red giant stops fusing elements