Chemistry ✔️the study of the composition, structure, and properties of matter and the changes it undergoes
Scientific Method ✔️set of general procedures based on experimentation and observation used to acquire scientific knowledge and explain
natural phenomena
Hypothesis ✔️model or statement that can be tested by experiment, offers an explanation for a scientific law
Experiment ✔️well defines controlled procedure for obtaining information about a system under study
Observation ✔️statement that describes something we see, hear, smell, taste, or feel
Scientific Fact ✔️is a reproducible piece of data about some natural phenomenon that is obtained from experimentation
Scientific Law ✔️generalization that summarizes scientific facts about a natural phenomenon
Scientific Theory ✔️scientific hypothesis that has been tested and validated over a long period of time
Exact Number ✔️number that has a value with no uncertainty in it, known exactly
Inexact Number ✔️number that has a value with a degree of uncertainty in it
Precision ✔️indicator of how close a series of measurements on the sam object are to each other
Accuracy ✔️indicator of how close a measurement comes to a true or accepted value
Significant Figures ✔️digits in any measurement that are known with certainty plus one digit that is uncertain
Scientific Notation ✔️A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.
SI Base Unit ✔️one of seven SI units of measurement from which all other SI measurement units can be derived
meter, kilogram, second, kelvin, mole, ampere, candela ✔️Name SI base units
Derived Unit ✔️a unit that is defined by a combination of base units
Energy ✔️(physics) the capacity of a physical system to do work
Potential Energy ✔️energy stored due to an object's position or arrangement
Kinetic Energy ✔️the energy an object has due to its motion
Law of Conservation of Energy ✔️energy can be interconverted between kinetic and potential, total amount of energy remains the same
Kinetic Molecular Theory ✔️the theory that all matter is composed of particles (atoms and molecules) moving constantly in random directions
Matter ✔️anything that takes up space and has mass
Atom ✔️smallest unit of matter
Molecule ✔️bigger unites of two or more atoms joined together
Compound ✔️pure substance that can be broken down into two or more simpler substances using chemical means
Mixture ✔️physical combination of two or more pure substances in which each substance retains its own identity
Pure Substance ✔️single kind of matter that cannot be separated into other kinds of matter using physical means
Physical Property ✔️characteristic of a substance that can be observed without changing the substance into another substance ex: color, odor,
taste, size, physical state, boiling and melting point, density