ES Q1 Crossword

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Across
  1. 2. the study of the origin, history, and structure of Earth
  2. 4. the scientific study of the oceans and oceanic phenomena
  3. 8. A naturally occurring solid mixture of one or more minerals or organic matter
  4. 10. a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
  5. 12. substance formed by the chemical combination of two or more elements in definite proportions
  6. 13. a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
  7. 15. Formed when one or more electrons are transferred from one atom to another
  8. 16. A model for the origin of the solar system that supposes a rotating nebula of dust and gases that contracted to form the Sun and planets.
  9. 18. Mass per unit volume, or the compactness of matter
  10. 20. The way a mineral reflects light from its surface
  11. 22. The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.
  12. 24. the splitting of a mineral along smooth, flat surfaces
  13. 27. A table that classifies elements by their physical and chemical properties; rows are called periods; columns are called groups;
  14. 29. The color of a mineral in powdered form
  15. 31. Electrons on the outermost energy level of an atom
Down
  1. 1. science dealing with the atmosphere and weather
  2. 3. 3 subatomic particles of an atom possessing a positive (+), neutral, and negative (-) charge respectively
  3. 5. A measure of how easily a mineral can be scratched
  4. 6. A testable prediction, often implied by a theory
  5. 7. The way a mineral looks when it breaks apart in an irregular way
  6. 9. Basic unit of matter
  7. 11. A chemical bond that involves sharing a pair of electrons between atoms in a molecule
  8. 14. a bond formed by the attraction between positively charged metal ions and the electrons around them
  9. 17. positively and negatively charged atoms
  10. 19. common or characteristic shape of individual crystals or aggregates of crystals
  11. 21. A pure substance made of only one kind of atom
  12. 22. the force that holds two atoms together
  13. 23. the study of minerals and their properties
  14. 25. the number of protons and electrons in the nucleus of an electrically neutral atom
  15. 26. The study of the moon, stars, and other objects in space
  16. 28. Center of an atom
  17. 30. well-tested explanation that unifies a broad range of observations