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9 - Module 1 TEST
| Question | Answer |
|---|---|
| atom | smallest unit of matter. |
| Beaker | Used for mixing and observing solutions as well as approximating volumes of solution. |
| Bunsen burner | Applies the heat to items used within the laboratory. |
| chemical formula | the ratio in which the atoms of each element in the compound occur |
| chemical symbol | one or two letters that represent an element |
| colloid | mixtures that are halfway between a solution and a suspension |
| Compound | A substance made up of atoms of two or more different elements joined by chemical bonds |
| Conclusion | Discusses the overall results of an experimental procedure and explains whether the proposed hypothesis at the beginning of the experiment was correct or not. |
| Condensation | when a vapor turns to liquid |
| data | Values derived from scientific experiments. |
| Deposition | when vapors sometimes change directly into solids |
| Element | one type of atom |
| Endothermic | a reaction that absorbs energy in the form of heat |
| energy | the ability to do work |
| evaporating dish | Used to evaporate solvent to concentrate a solution. |
| Exothermic | a reaction that releases energy in the form of heat |
| filter funnel | A disk-shaped piece of filter paper and a funnel that are used for separating solids from liquids. |
| flask | Holds liquids; narrow at the top |
| Freezing | when matter changes from a liquid to a solid |
| gas | A state of matter with no definite shape or volume |
| graduated cylinder | Used for the sole purpose of Measuring liquids Not mixing or observation. |
| heterogeneous mixture | a mixture in which components are not evenly distributed throughout the mixture |
| homogeneous mixture | A mixture in which substances are evenly distributed throughout the mixture |
| Hypothesis | a tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation |
| kilo, hecto, deca, base, deci, centi, milli | What does "King Henry Died By Drinking Chunky Milk" stand for? |
| Kinetic Energy | is the energy an object has due to its motion |
| Kinetic Theory of Matter | states that all of the particles that make up matter are constantly in motion |
| larger | If you are converting to a smaller unit of measurement, the number gets |
| law | a statement describing a relationship observed to be invariable between or among phenomena for all cases in which the specified conditions are met |
| liquid | free-flowing and assume the shape of the container that holds them |
| matter | anything that has mass and takes up space. |
| Melting | when matter changes from solid to liquid |
| Metric System of Measurement(SI system) | A worldwide system of measurement based on powers of 10 |
| mixtures | a combination of two or more substances that are not chemically combined |
| mortar and pestle | Helps crush solid compounds to powder for easier dissolving. |
| peridoic table | table of all elements |
| Pipette | Used for the incremental addition of liquids drop by drop. |
| plasma | ionized gas |
| pure substance | a substance made of only one kind of matter and having definite properties. |
| reagent bottle | Used as a container for chemicals that cannot be disposed of in a sink. |
| ring/clamp stand | Used for holding pieces of glassware in place with rings or clamps. |
| round bottom flask | Good for mixing, shaking, and observing solutions; also referred to as a Florence Flask. |
| safety goggles | Worn while working in the lab; they protect eyes from danger. |
| Scientific method | The principles and empirical processes of discovery and demonstration necessary for scientific investigation. |
| smaller | If you are converting to a larger unit of measurement, the number gets |
| solid | matter that has a definite shape and volume |
| solutions | a homogeneous mixture of two or more substances |
| spatula | Used to extract solid compounds from their original containers for further experimental use. |
| Standard System of Measurement | A measurement system used in the United States. Also called the Imperial System and Customary System. |
| Sublimation | when solids can change directly to vapors |
| Suspension | heterogeneous mixtures in which particles do not dissolve and are not evenly distributed |
| test tube brush | An instrument used to clean the inside of test tubes. |
| test tube rack | Used to store test tubes, either dry or containing chemicals. |
| test tube | Used to hold, mix, or heat small quantities of solids or liquids. |
| Theory | a set of statements or principles devised to explain a group of facts or phenomena that has been repeatedly tested |
| Vaporization | when a liquid turns to vapor |
Created by:
Ms. Greenup
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