Across
- 2. Physical properties can be observed or measured without changing the composition of matter.
- 7. Digits that carry meaning. Critical when reporting scientific data because they give the reader an idea of how well you could actually measure/report your data.
- 9. A conclusion reached on the basis of evidence and reasoning.
- 11. Information or data that describes color, odor, shape, or some other physical characteristic
- 12. Properties that do not depend on the amount of the matter present.
- 13. A level of individual particles that make up matter can be observed.
- 17. A mixture in which the uneven texture of the material can be detected.
- 18. Refers to the closeness of the measurements to the correct accepted value
- 22. Pure substances composed of two or more different elements held together by chemical bonds.
- 23. The action or process of noticing something or someone carefully or in order to gain information.
- 25. A property used to characterize materials in reactions that change their identity.
- 26. Very small pieces of solid are spread through a liquid but do not dissolve
Down
- 1. Has no definite shape or volume. Can expand to fill the container they are in and can be compressed.
- 3. A mixture that consists of two or more substances in the same phase. They are often called solutions.
- 4. Have definite volume but take the shape of the container. The particles move just fast enough to overcome some of the attraction between each other.
- 5. The way that scientists easily handle very large numbers or very small numbers.
- 6. This information is shown numerically. Often used to show data involving temperature, pressure, volume, and quantity of chemical formed.
- 8. Composed of one type of atom
- 10. This is an intrinsic property that is measured g/mL.
- 14. Characteristics of properties observed by unaided human senses.
- 15. The smallest particle of an element that retains the characteristic chemical properties of that element.
- 16. Expressed as a percentage the difference between an approximate or measured value and an exact or known value.
- 19. Properties that do depend on the amount of matter present.
- 20. Refers to the closeness of a set of measurements to the correct accepted value of the quantity measured.
- 21. Has definite shape and volume. The particles vibrate because they do not move fast enough to vibrate.
- 24. A homogeneous mixture composed of only one phase.In such a mixture, this is a substance dissolved in another substance.
- 25. A substance in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
- 27. Forms when temperature of a gas is extremely high and its particles are positively and negatively charged. It conducts electric current and are affected by magnetic fields.