Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
|
Science
|
systematic knowledge of the physical or material world gained through observation and experimentation
|
|
|
Experiment
|
method by which a scientist carefully records observations under a set of controlled conditions.
|
|
|
Hypothesis
|
explain the observation in a logical manner
|
|
|
Scientific Method
|
1. perform an experiment
2. analyze the data and propose a hypothesis to explain the data 3. consuct additional experiments to test the hypothesis |
|
|
Chemistry
|
the science that deals with matter and its changes
|
|
|
Matter
|
anything that has mass and occupies space
|
|
|
Mass
|
measurement of the quantity of matter that an object contains
|
|
|
Metric System
|
standardized measurement system
|
|
|
Volume
|
pie r squared height
|
|
|
Density
|
mass
--------- volume |
|
|
Spectra
|
color lines
|
|
|
Diffraction Grating
|
sheet of material that separates the different wavelengths of light
|
|
|
Continuous Spectrum
|
white light appears as a complete rainbow
|
|
|
Hydrates
|
solid ionic compounds that contain water
|
|
|
Anhydrous Solids
|
compounds that have no water in their crystals
|
|
|
Desiccants
|
keep the moisture content of nearby air very low
|
|
|
Law of Constant (or Definite) Composition
|
constant ratio of water molecules throuhout homogeneous hydrated crystals
|
|
|
Hydrate Number
|
the whole number coefficient before the water symbol in stoichiometry
|
|
|
Heat of Hydration
|
measure of the amount of energy that holds the water molecules in their lattice positions
|
|
|
Ideal Gas Law
|
PV=nRT
|
|
|
R constant
|
.08206 L atm/mol K
|
|
|
Standard Conditions
|
0 *C (273.15 K), 1.00 atm
|
|
|
Standard Molar Volume of Gases
|
one mole is 22.4 liters
|
|
|
Combined Gas Law
|
PV/T = P'V'/T'
|
|
|
Volatile
|
vaporize easily and are therefore able to be detected through our sense of smell
|
|
|
Esters
|
sweet smelling compounds
|
|
|
Tensile Strength
|
measured by pulling quickly on the polymer
|
|
|
Elasticity
|
determines how far the material will stretch and is tested by pulling on hte material slowly
|
|
|
Resiliency
|
determines how well it will return to its original form
|
|
|
Bounce
|
how high it will bounce when dropped from a certain height
|
|
|
Endothermic
|
decrease in the temperature of the chemicals, container, and surroundings
|
|
|
Calorimeter
|
vessel enclosed in an insulated space so that little or no hear is transferred to the surroundings
|
|
|
Carbohydrates
|
body's source of quick energy
|
|
|
Simple Sugars
|
monosaccharides and disaccharides
|
|
|
Complex Carbohydrates
|
polymers of monosaccharide units in the ring form
|
