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Science- NAL
Science- NAL
154
Other
8th Grade
10/31/2014

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Term
Van Allen Belts
Definition
a layer of energetic charged particles that is held in place around a magnetized planet
Term
Greenhouse Effect
Definition
a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions, results in an elevation of temperature
Term
Erosion
Definition
water or wind removes soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited
Term
Gravity
Definition
refers to the acceleration that the Earth imparts to objects on or near its surface
Term
Elements in Earth's Crust
Definition
Oxygen
Silicon
Aluminum
Iron
Calcium
Sodium
Potassium
Magnesium


1.5
Term
Fossil Fuel
Definition
hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals
Term
Mantle
Definition
the portion of the earth, about 1800 miles thick, between the crust and the core
Term
Ice Age
Definition
the series of glacial episodes during the Pleistocene period
Term
Mesozoic
Definition
the era comprising the Triassic, Jurassic, and Cretaceous periods
Term
Earth Age
Definition
geological time scale, describes the timing and relationships between events
Term
Laccolith
Definition
a sheet intrusion that has been injected between two layers of sedimentary rock
Term
Pumice
Definition
a volcanic rock
Term
Hematite
Definition
mineral form of iron oxide
Term
Metamorphic
Definition
rock that has undergone transformation by heat, pressure
Term
Sedimentary
Definition
rock that has formed from sediment deposited by water or air
Term
Igneous
Definition
rock having solidified from lava or magma
Term
Metamorphic types
Definition
granite, limestone, shale
Term
Cold front
Definition
a cooler mass of air, replacing (at ground level) a warmer mass of air
Term
Occluded fronts
Definition
is formed during the process of cyclogenesis when a cold front overtakes a warm front
Term
Typhoon
Definition
a mature tropical cyclone that develops in the western part of the North Pacific Ocean between 180° and 100°E
Term
Hurricane
Definition
a tropical cyclone, occurring in the North Atlantic Ocean or the Northeast/North-Central Pacific Ocean
Term
Tornado
Definition
is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud
Term
Tsunami
Definition
a seismic sea wave, is a series of water waves caused by the displacement of a large volume of a body of water
Term
Epicenter
Definition
the point where an earthquake or underground explosion originates
Term
"P" Waves
Definition
are a type of body wave that is the first wave to arrive to the seismograph, called seismic waves in seismology, that can travel through a continuum, known as primary or pressure wave
Term
Gem
Definition
a cut rock or mineral
Term
Glacier
Definition
is a persistent body of dense ice that is constantly moving under its own weight
Term
Contour Lines
Definition
A line on a map that joins points of equal elevation
Term
Minerals
Definition
naturally occurring substance that is solid and inorganic representable by a chemical formula, different from a rock
Term
Isotope Sample
Definition
variants of a particular chemical element such that while all isotopes of a given element have the same number of protons in each atom, they differ in neutron number
Term
Compost Pile
Definition
pile of garden and organic kitchen refuse that decomposes to produce compost
Term
Diabetes
Definition
a lifelong (chronic) disease in which there are high levels of sugar in the blood
Term
Black Death
Definition
plague, was one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people and peaking in Europe in the years 1346–53
Term
Quart
Definition
equal to 4 cups
Term
Pint
Definition
equal to 2 cups
Term
Centimeter/Inch
Definition
1 centimeter / inch =

0.393700787
Term
Kilowatt
Definition
a unit of energy equal to 1,000 watt-hours
Term
Liter
Definition
One litre is the volume of a
cube with 10 cm
Term
Meter
Definition
1 kilometer = 1000 meters
Term
Millimeters/Meters
Definition
1 meter = 1000 millimeters
Term
Kilogram/Gram
Definition
1 kilogram = 1000 grams
Term
Yard
Definition
1 yard = 3 feet
Term
Deci
Definition
a prefix in the metric system denoting a factor of one tenth
Term
Milli
Definition
is a prefix in the metric system denoting a factor of one thousandth
Term
Micro
Definition
a prefix in the metric system denoting a factor of one millionth
Term
Kilo
Definition
a unit prefix in the metric system denoting multiplication by one thousand
Term
Decibel
Definition
a logarithmic unit used to express the ratio between two values of a physical quantity, often power or intensity
Term
Grams
Definition
a metric system unit of mass, one one-thousandth of a kilogram
Term
Cup/Ounces
Definition
8 ounces in a cup
Term
Pint/ounces
Definition
16 ounces to a U.S. pint
Term
Quart/Pints
Definition
there are 2 pints in a quart
Term
Gallon/Quarts
Definition
there are 4 quarts in a gallon
Term
Anton Leeuwenhoek
Definition
the Father of Microbiology
Term
Henri Becquerel
Definition
a French physicist, discoverer of radioactivity
Term
Anthropology
Definition
the study of humans, past and present
Term
Entomology
Definition
study of insects
Term
Botanist
Definition
plant scientist
Term
Zoologist
Definition
study animals and other wildlife
Term
Bacteriologist
Definition
study bacteria with their applications in medicine, agriculture, industry, and biotechnology
Term
Herpetologist
Definition
study of amphibians and reptiles
Term
Simple Machines- Inclined Plane
Definition
a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load
Term
Temperature- Freezing
Definition
0 °C, 32 °F
Term
Temperature- Boiling
Definition
100° C, 212° F
Term
Celsius
Definition
centigrade, unit of measure for temperature
Term
Fahrenheit
Definition
a temperature scale based on one proposed in 1724 by the German physicist Daniel Gabriel Fahrenheit
Term
Efficiency
Definition
the extent to which time, effort or cost is well used for the intended task or purpose
Term
TEM (Transmission electron microscopy )
Definition
a microscopy technique in which a beam of electrons is transmitted through an ultra-thin specimen, interacting with the specimen as it passes through
Term
Variables
Definition
a logical set of attributes, a symbol that represents a quantity in a mathematical expression
Term
Astrolabe
Definition
an elaborate inclinometer, historically used by astronomers, navigators, and astrologers
Term
Accuracy
Definition
the combination of both trueness and precision
Term
Quinine
Definition
Quinine
Term
Theory
Definition
a well-substantiated explanation of some aspect of the natural world, repeatedly tested
Term
Swimming Pool Acid
Definition
chemicals like muriatic acid keep the pH levels of your pool's water balanced
Term
Convex
Definition
means curving out or extending outward
Term
Asbestos
Definition
naturally occurring silicate minerals, may be related to health concerns and cancer, was used in some building supplies
Term
Mammal Characteristics
Definition
vertebrates, Are endothermic, “warm-blooded”
Term
Penguin
Definition
a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere, especially in Antarctica
Term
Lateral Line, Fish
Definition
a system of sense organs found in aquatic vertebrates, used to detect movement and vibration in the surrounding water
Term
Meiosis II (second cell division)
Definition
chromosomes line up and sister chromatids are separated by the action of the spindle fibers
Term
Anaphase
Definition
is the stage of mitosis or meiosis when chromosomes are split and the sister chromatids move to opposite poles of the cell
Term
Cell Division
Definition
the process by which a parent cell divides into two or more daughter cells
Term
Taxonomic Order
Definition
rank used in classifying organisms
Term
Medulla
Definition
lower half of the brainstem, which is continuous with the spinal cord
Term
Pupil
Definition
a hole located in the center of the iris of the eye that allows light to strike the retina
Term
Esophagus
Definition
an organ in vertebrates which consists of a fibromuscular tube through which food passes
Term
Chromatin
Definition
a complex of macromolecules found in cells, consisting of DNA, protein and RNA
Term
Adam's apple
Definition
refers to the lump or protrusion that is formed by the angle of the thyroid cartilage surrounding the larynx
Term
Types of Blood Vessels- Arteries
Definition
carry the blood away from the heart
Term
Desert Plants Adaptation
Definition
adapted by altering their physical structure are called xerophytes. Xerophytes, such as cacti, usually have special means of storing and conserving water. They often have few or no leaves, which reduces transpiration.
Term
Petiole
Definition
the stalk attaching the leaf blade to the stem
Term
Natural Selection Theory
Definition
principle by which each slight variation [of a trait], if useful, is preserved
Term
Homo Sapiens
Definition
human species
Term
Molting
Definition
shed old feathers, hair, or skin, or an old shell, to make way for a new growth.
Term
Gene Pool
Definition
the set of all genes, or genetic information, in any population, usually of a particular species
Term
Cilia
Definition
are the tiny, hairlike structures that move digested food down the intestines (in anatomy, the eye lashes)
Term
Homozygous Organism
Definition
possess either a pair of dominant alleles (e.g. AA) or a pair of recessive alleles (e.g. aa).
Term
Decomposers
Definition
break down dead or decaying organisms
Term
Hypertonic
Definition
one with a higher concentration of solutes outside the cell than inside the cell
Term
Species
Definition
species is often defined as the largest group of organisms capable of interbreeding and producing fertile offspring
Term
Insecticide
Definition
substance used to kill insects
Term
Biotic Factors
Definition
a living thing, as an animal or plant, that influences or affects an ecosystem
Term
Food Chain
Definition
sequence of links in a food web starting from a that are called producers in the web and ends at a species that is called decomposers
Term
Food Web
Definition
depicts feeding connections like a finella (what-eats-what)
Term
Iron
Definition
a chemical element with symbol Fe and atomic number 26
Term
Pyrite
Definition
compound, fool's gold, chemical formula FeS2
Term
Gold
Definition
a chemical element with symbol Au and atomic number 79
Term
Rock
Definition
a naturally occurring solid aggregate of one or more minerals
Term
Methane
Definition
a chemical compound with the chemical formula CH 4
Term
Sulfuric Acid
Definition
a highly corrosive strong mineral acid
Term
Glucose
Definition
monosaccharide that is absorbed directly into the bloodstream during digestion
Term
Hydrochloric Acid
Definition
highly corrosive, strong mineral acid with many industrial uses
Term
Tungsten
Definition
a chemical element with symbol W and atomic number 74
Term
Silica
Definition
compound of the two most abundant elements in the Earth's crust, silicon and oxygen
Term
Ionic
Definition
is a chemical compound in which ions are held together in a structure by ionic bonds
Term
Molecular
Definition
electrically neutral group of two or more atoms held together by chemical bonds
Term
Oxygen
Definition
a chemical element with symbol O and atomic number 8
Term
Mercury
Definition
a chemical element with symbol Hg and atomic number 80
Term
Water
Definition
chemical compound, H2O
Term
Granite Rock
Definition
heterogeneous mixture
Term
Nitrogen
Definition
a chemical element with symbol N and atomic number 7
Term
Molten Steel
Definition
mixture, liquid metal
Term
Hammer Head
Definition
is a RNA module that catalyzes reversible cleavage and joining reactions at a specific site within an RNA molecule
Term
Helium
Definition
a chemical element with symbol He and atomic number 2
Term
Element- Atom, nucleus, electron
Definition
atom is the smallest unit that defines the chemical elements, nucleus is at the center of an atom, Electrons are the negatively charged particles of atom
Term
Chemical Equations
Definition
the symbolic representation of a chemical reaction wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side
Term
Amino Acids
Definition
chemical compound, building blocks of protein
Term
Heating Gas
Definition
Heat is thermal energy in the process of transfer or conversion across a boundary of one region of matter to another, as a result of a temperature difference
Term
Speed of sound
Definition
the distance traveled per unit of time by a sound wave propagating through an elastic medium
Term
light waves
Definition
they don't need a medium to travel through, Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow
Term
microwaves
Definition
a form of electromagnetic radiation with wavelengths ranging from as long as one meter to as short as one millimeter
Term
Kinetic
Definition
of an object is the energy that it possesses due to its motion
Term
Newton-meters
Definition
is a unit of torque (also called "moment")
Term
Joules
Definition
is a derived unit of energy, work, or amount of heat
Term
Chemical energy
Definition
the potential of a chemical substance to undergo a transformation through a chemical reaction
Term
Frequency of light colors
Definition
Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors
Term
Period Three
Definition
sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon
Term
"E" Elements
Definition
Europium Einsteinium Erbium
Term
Gold
Definition
Au, atomic number 79
Term
Silver
Definition
Ag, atomic number 47
Term
Iron
Definition
Fe, atomic number 26
Term
Potassium
Definition
K, atomic number 19
Term
Sodium
Definition
Na, atomic number 11
Term
Tin
Definition
Sn, atomic number 50
Term
Helium
Definition
He, atomic number 2
Term
Sir William Herschel
Definition
German-born British astronomer, composer
Term
Mars
Definition
the fourth planet from the Sun and the second smallest planet in the Solar System
Term
Mercury
Definition
the smallest and closest to the Sun of the eight planets in the Solar System, with an orbital period of about 88 Earth days
Term
Solar Flares
Definition
a sudden flash of brightness observed over the Sun's surface or the solar limb
Term
Prominence
Definition
a large, bright, gaseous feature extending outward from the Sun's surface, often in a loop shape
Term
Lunar Eclipse
Definition
occurs when the Moon passes directly behind the Earth, occurs only when the Sun, Earth, and Moon are aligned exactly
Term
Jupiter Moons
Definition
67 confirmed
Term
Pressurized spacesuit
Definition
worn to protect the person from low air pressure
Term
electron
Definition
is a subatomic particle with a negative elementary electric charge
Term
redox/reduction
Definition
include all chemical reactions in which atoms have their oxidation state changed, involve the transfer of electrons
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