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| consisting of descriptive observations |
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| The use of carefully controlled experiments to answer scientific questions |
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| consisting of numbers obtained by measurement |
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| an educated guess to an observation. (example: Observation: the flashlight is not turning on. Hypothesis: The batteries are dead.) |
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| a unifying principle that explains the law based on the experimental observtions |
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| measurements in which the result is expressed as a number |
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| general characteristics such as color, odor, taste, and the tendency to undergo chemical change in the presence of other substances |
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| law of conservation of mass |
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| in a chemical reaction the total mass of the reacting substanc is equal to the total mass of the products formed. |
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| A method of writing numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. The scientific notation of 10,492, for example, is 1.0492 × 10^4. |
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| A decimal system of units based on the meter as a unit length, the kilogram as a unit mass, and the second as a unit time. |
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| A complete, coherent system of units used for scientific work, in which the fundamental quantities are length, time, electric current, temperature, luminous intensity, amount of substance, and mass. |
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| The measurement of the extent of something along its greatest dimension. The SI unit is measured in meters. |
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| Represented by the symbol V. It is derived from the basic SI unit for length, which is the meter |
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| Equal to the volume of a cube that is 10 cm (or 1/10 of a meter) on each edge. 1L = (10cm)^3 = 1000 cm^3 |
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| There are 1000 mililiters in 1 Liter. (1 mL= 1 cm^3) |
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| Sometimes abbreviated "cc." 1 cm^3 = 1 mL |
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SI unit of Mass
1000 g/ 1 Kg |
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| the object resistance to being moved. It is an intrinsic property of the object |
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| The weight of an object is equal to the force of attraction of the object to a large body. (Such as the earth or moon) |
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| A property that constitutes a quantative measure of the relative tendency of heat to escape from an object |
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| There are three temperature scales in use today, Fahrenheit (32-212), Celsius (0 - 100) and Kelvin (0-100). The conversion formula for a temperature that is expressed on the Celsius (C) scale to its Fahrenheit (F) representation is: F = 9/5C + 32. Fahrenheit ( F) scale to the Celsius (C) value: C = 5/9(F - 32) |
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| Instrument used to measure temperature |
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| a temperature scale having an absolute zero below which temperatures do not exist. Absolute zero, or 0K, is the temperature at which molecular energy is a minimum, and it corresponds to a temperature of -273.15° on the Celsius temperature scale. |
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| The International Standard unit of temperature. Absolute zero equals 0°K = -273.16°C = 459.69°F. A temperature increase of 1°K is numerically equal to an increase of 1°C. |
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| Of or relating to a temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure. |
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| Of or relating to a temperature scale that registers the freezing point of water as 32° and the boiling point as 212° at one atmosphere of pressure. |
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| A pure, macroscopically homogeneous substance consisting of atoms or ions of two or more different elements in definite proportions that cannot be separated by physical means. A compound usually has properties unlike those of its constituent elements. |
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| The quantity of something per unit measure, especially per unit length, area, or volume. |
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| The product of powers of fundamental quantities (or of convenient derived quantities) which are used to define a physical quantity; the fundamental quantities are often mass, length, and time. |
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| any of the properties of a substance or object that describe a specific characteristic of the substance or object in a given state. Intensive properties are independent of the amount of the substance or the size of the object being considered, e.g. density, specific volume, temperature, etc. |
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| A noninherent property of a system, such as volume or internal energy, that changes with the quantity of material in the system; the quantitative value equals the sum of the values of the property for the individual constituents. |
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| Energy of motion, equivalent to one-half an object's mass multiplied by its velocity squared. |
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| The energy of a particle or system of particles derived from position, or condition, rather than motion. A raised weight, coiled spring, or charged battery has potential energy. |
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| The International System unit of electrical, mechanical, and thermal energy. |
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| an International System of Units unit of energy equal to 10−18 joules |
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