Science Study Guide Flashcards
Superposition
Describes a challenging concept about the nature and behavior of matter and forces
Geologic Column
It shows the rock formations of a region. It is arranged to indicate the relations of the subdivisions.
Henri Becquerel
Physicist, discoverer of radioactivity, received a Nobel piece prize.
Marie Curie
First women to win Nobel piece prize, led to the discovery of polonium and radium, developed x-rays.
Fluorescent Minerals
They emit visible light. Certain electrons and chemicals in the minerals absorb energy.
Nuclear Radiation
It’s the energy particles or rays given off from uranium as it decays.
Radioactivity
When particles emitted from nuclei result in nuclear stability.
Radioactive Decay
The process in which a nucleus of an unstable atom loses energy by emitting radiation.
Alpha Decay
It’s a type of radioactive decay in which a atomic nucleus emits an alpha particle.
Beta Decay
A type of radioactive decay in which a proton is transformed into a neutron.
Gamma Decay
A type of radioactivity which unstable nuclei dissipate excess energy by a spontaneous electromagnetic process.
Radiation Sickness
A illness and symptoms resulting from excessive exposure to ionizing radiation.
Absolute Dating
The process of determining an age on a time scale in archaeology and geology.
Isotopes
Versions of an atom or element that have the same number of protons, but different numbers of neutrons.
Radioactive Decay
Also known as radioactivity, it’s the process which a nucleus of an unstable atom loses energy by emitting radiation.
Parent Isotope
A isotope that undergoes radioactive decay in a nuclear reaction.
Daughter Isotope
It’s the remaining nuclide left over from radioactive decay.
Radiometric Dating
It’s a technique used to date materials such as rocks or carbon.
Half-life
The amount of time it takes for half of it’s atoms to decay.
Unstable Isotope
It undergoes radioactive decay which means it looses energy over time which emitting radiation.
Stable Isotope
It refers to isotopes of the same element.
Fossils
The remains or impression of a prehistoric organism.
Permineralized Remains
A process which mineral deposits form internal casts of organisms.
Carbon Film
The traces of plants or animals preserved as a thin film of carbon.
Coal
Sedimentary organic rock, which is composed mainly of carbon, hydrogen, and oxygen.
Mold
Growth of fungus that occurs on food or in a home or other warm moist conditions.
Cast
When a fossil formed when an animal, plant, or other organism dies.
Original Remains
Unchanged fossilized remains of animals and plants.
Trace Fossils
They provide us indirect evidence of like in the past like footprints, tracks, and feces left behind by animals.
Index Fossils
Used for dating and correlating the strata in which it’s found.
Paleontologist
A scientist who studies fossils.
Relative Dating
To determine the relative order of past events without determining the absolute age
