Across
- 3. Matter does not allow electricity to run through it.
- 4. A pure substance composed of 2 or more elements that are chemically combined, represented by chemical formulas (H2O or NACI).
- 6. The variable whose valve we know before we start an experiment.
- 7. A variable that does not change for the duration of the experiment.
- 10. Is the most obvious but least dependable property of minerals.
- 12. Apron, chemical-splash goggles, and chemical-resistant gloves.
- 17. A possible explanation for a set of observations or answer to a scientific question; must be testable.
- 20. The color of crushed mineral's powder.
- 21. An element that can be classified based on physical properties of hardness, luster, ease of malleability, conductivity, and ductility.
- 22. Production of gas, change in temperature, production of solic precipitate, or change in color.
- 23. The ability/inability to burn.
- 27. A variable that changes depending on some other factor; the variable we are trying to figure out.
- 28. How a crystal breaks when a subject to stress on a particular plane; retains a smooth plane or crystal shape.
- 29. An element that has both metallic and nonmetallic properties.
- 30. The ability to be shattered and broken into pieces when pounded.
- 31. The way matter reflects light from its surface - matter that reflects a large amount of light is shiny and matter that reflects little light from its surface is dull.
- 32. A well-tested concept that explains a wide range of observations.
Down
- 1. The ability to be pounded into thin sheets.
- 2. Matter that allows electricity to flow through it.
- 5. Fire extinguisher, fire blanket, and eye wash station.
- 8. The ability/inability to react with air, water, etc.
- 9. An element that lacks most of the physical properties of metals.
- 11. Is a combination of more than one substance, but it does not create a new substance, and it can be separated.
- 13. How well a substance will resist scratching by another substance; 1 being the softest to 10 being the hardest.
- 14. The ability to be pulled into thin wires.
- 15. A change that effects one or more physical properties of a object but does not change the identity.
- 16. A change in which a new substance with different properties is formed/created.
- 18. Properties that can be seen without changing the object, using your senses.
- 19. A naturally occurring solid, made up of elements.
- 24. Anything that has mass and takes up space.
- 25. A description of the way a mineral tends to break; retains an irregular, jagged, or splintery shape.
- 26. A pure substance that is composed of the same type of matter throughout and cannot be divided into simpler substances through normal processes.