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