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Physical Science Chapter 1 & 2 Vocabulary Test

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3.A change of matter from one form to another without a change in chemical properties.
4.A measure of the size of a body or region in three-dimensional space.
6.An explanation of some phenomenon that is based on observations, experimentation, and reasoning.
11.A combination of chemical symbols and numbers to represent a substance.
14.A summary of many experimental results and observations; tells how things work.
17.A sample of matter, either a single element or a single compound, that has definite chemical and physical properties.
19.A property of matter that describes a substance’s ability to participate in chemical reactions.
21.The ability and willingness to assess claims critically and to make judgments on the basis of objective and supported reasons.
22.A measure of the straight-line distance between two points.
25.Describes two or more liquids that can dissolve into each other in various proportions.
29.The ability of a substance to react in the presence of oxygen and burn when exposed to a flame.
32.Describes something that has a uniform structure or composition throughout.
33.A substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number.
34.To reduce the number of zeros, you can express values as a simple number multiplied by a power of 10.
35.The application of science for practical purposes.
1.A characteristic of a substance that does not involve a chemical change, such as density, color, or hardness.
2.Composed of dissimilar components.
5.Anything that has mass and takes up space.
7.The capacity of a substance to combine chemically with another substance
8.The temperature and pressure at which a solid becomes a liquid.
9.The smallest unit of a substance that keeps all of the physical and chemical properties of that substance.
10.A change that occurs when a substance changes composition by forming one or more new substances.
12.A measure of the amount of matter in an object.
13.___is observing, studying, and experimenting to find the nature of things.
15.A measure of the gravitational force exerted on an object.
16.A series of steps followed to solve problems, including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions.
18.A prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement.
20.A combination of two or more substances that are not chemically combined.
23.The exactness of a measurement.
24.A factor that changes in an experiment in order to test a hypothesis.
26.The temperature at which a liquid becomes a gas.
27.A substance made up of atoms of two or more different elements joined by chemical bonds.
28.The ratio of the mass of a substance to the volume of the substance.
30.The smallest unit of an element that maintains the properties of that element.
31.A description of how close a measurement is to the true value of the quantity measured.

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