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121 facts:

Absolute Zero
   means   
The Lowest Theoretical Temperature
0K = -273.16°C
Acceleration
   means   
Rate of Change of Velocity
Activation Energy
   means   
The Energy Required to Initiate a Chemical Reaction
Adiabatic System
   means   
A System That Neither Gains or Loses Heat
Alkali
   means   
A Base That is Soluble in Water
Allotrope
   means   
Element With More Than One Natural Form
Ambergris
   means   
Substance Ejected by Whales
Bio Used in perfumes to 'fix' scent and slow evaporation
Amber
   means   
Solidified Resin of Ancient Trees
Bio Many extinct organisms are found in amber
Amino Acids
   means   
Carbon, Hydrogen, Oxygen and Nitrogen Compounds
Amoeba
   means   
One-celled Organism
Bio Reproduces by dividing (binary fission)
Anion
   means   
A Negative Ion
Anodize
   means   
To Coat Metal With an Oxide Film
Performed through electrolysis. Enhances durability
Anodyne
   means   
Pain Relieving Medicine
Such as aspirin
Atomic Number
   means   
The Number of Protons in an Atom
Atomic Symbol
   means   
The Letters Representing Each of the Elements
Atomic Weight
   means   
The Average Weight of an Atom
Atoms
   means   
Composite Particles of Protons, Neutrons and Electrons
The smallest part of a substance that can take part in a chemical reaction.
Benthos
   means   
The Bottom of a Sea or Lake
Organisms living there are called Benthic
Boiling Point
   means   
The Temperature at Which a Liquid Turns to a Vapour
Bond
   means   
A Chemical Link Between Atoms
Capacitance
   means   
The Ability to Store an Electric Charge
Carbon
   means   
The Basic Element in All Organic Compounds
Carnivore
   means   
Meat Eater
Bio Sharks and felines are carnivores
Catalyst
   means   
A Substance That Reduces the Activation Energy of a Reaction
Cation
   means   
A Positive Ion
Charge
   means   
The Amount of Unbalanced Electricity in a System
Either positive or negative.
Chemical Equation
   means   
The Mathematical Representation of a Chemical Reaction
Chemical Reaction
   means   
The Transformation of Substances by the Rearrangement of Their Atoms
Chlorophyll
   means   
Green Pigmentation of Plants
Bio Acts to turn sunlight into energy
Compound
   means   
A Substance Containing More Than One Element
Conduction
   means   
Heat or Electricity Transfer Through Molecular Interaction
Contrail
   means   
Vapour Streams Left by Jet Planes
Shortened from condensation trail
Convection
   means   
Heat Transfer Through the Movement of a Fluid
Eg: warm air rising.
Corporeal
   means   
Tangible
Our bodies are said to be corporeal
Coulomb Attraction
   means   
Electrostatic Attraction Between Bodies of Opposite Charge
Covalent Bond
   means   
A Bond Formed Between Atoms That Share Electrons
Crystal
   means   
Solid Substance With a Regular Geometirc Arrangement of Atoms
Deciduous
   means   
Descriptive of Things That Shed
Bio Leaves dropping from trees, animals losing antlers
Density
   means   
The Mass Per Unit Volume in a Substance
Diffusion
   means   
The Random Movement of Molecules Within a Fluid
Elasticity
   means   
The Ability of a Body to Regain Its Original Shape After Deformation
Electrolyte
   means   
An Ion Solution That is an Electrical Conductior
Electromagnetic Waves
   means   
Waves With Both an Electric and Magnetic Component
They are: radio, micro, infra-red, visible light, ultraviolet, X and gamma rays.
Electrons
   means   
Negatively Charged Atomic Particles
Element
   means   
A Substance Composed of Atoms All With the Same Atomic Number
A substance that cannot be split chemically into smaller substances.
Endothermic Reaction
   means   
A Reaction in Which Heat is Absorbed
Ie: melting or boiling
Entropy
   means   
The State of Disorder in a Thermodynamic System
Epogee
   means   
Most Distant Point of Orbit
Chiefly used with moons and satellites
Exothermic Reaction
   means   
A Reaction from Which Heat is Lost
Fecund
   means   
Capable of Reproduction
Bio Also, fertile, as in soil
Field
   means   
A Region in Space Defined by a Vector Function
Common fields are: gravitational, electric and magnetic.
Fission
   means   
Splitting the Nucleus of an Atom Into Smaller Units
Fluid
   means   
A Liquid or Gas
Fossil
   means   
Remnants of an Organism Embedded Geologically
Bio Leaves observed in rock faces are fossils
Free Radical
   means   
A Highly Reactive Molecule Used to Start the Production of a Polymer Chain
Frequency
   means   
The Rate As Which Periodic Motion Repeats Itself
Friction
   means   
A Measure of the Resistance Felt when Sliding One Body over Another
Fulcrum
   means   
The Pivot Point of a Lever
The fulcrum for a teeter totter (seesaw) is in the middle
Fusion
   means   
The Joining Together of Two Atomic Nuclei
Guyot
   means   
A Sea Mountain With a Flat Top
Usually produced by lava flow
Haemoglobin
   means   
Oxygen Carrying Protein Cells in Blood
Bio Gives blood its red colour.
Half-life
   means   
The Time Taken for the Level of Radioactivity in an Element to Halve
Halogen
   means   
Highly Reactive Gases Forming Group 7 of the Periodic Table
Heat
   means   
The Internal Energy of a Substance
Herbivore
   means   
Plant Eater
Bio Elephants and cattle are herbivores
Host
   means   
That on Which Another Organism Lives
Bio A dog is host to a flea
Hydrocarbon
   means   
Compounds Containing Only Hydrogen and Carbon Atoms
Inertia
   means   
Tendency of a Body to Remain at Rest or Move in Straight Line
Innate
   means   
Possessed at Birth
Such as the five senses
Ion
   means   
Atom With an Unbalanced Electrical Charge
Caused by the loss or gain of one or more electrons.
Isomer
   means   
Chemical Compounds With the Same Composition but Different Shapes
Isomeric Structure
   means   
The Shape of a Molecule
The isomeric structure is determined by the order in which the atoms are bonded together.
Isotope
   means   
An Element That Has More or Less Neutrons Than Normal
Many isotopes are radioactive.
Kinetic Energy
   means   
The Energy Possessed by a Body in Motion
Latent Heat
   means   
The Amount of Energy Required to Change a Solid to a Liquid
Or liquid to a gas
Limb
   means   
Outer Edge of a Celestial Body
The less intense light near the edge (limb darkening) of the sun allows scientists to to model it's temperature structure
Magnet
   means   
A Body Which Produces a Magnetic Field
All magnets are di-pole and follow the rule that like poles repel and unlike poles attract.
Mass
   means   
The Quantity of Matter in a Body
Molecular Formula
   means   
The Number and Types of Atom in a Molecule
For example the molecular formula of methane is CH4, one atom of carbon and four atoms of hydrogen.
Molecule
   means   
A Group of Atoms Bonded Together
It is the smallest part of a substance that retains the chemical properties of the whole.
Momentum
   means   
The Product of Mass Times Velocity
Momentum is conserved in any system of particles.
Monomers
   means   
Small Molecules That Link Together to Form a Polymer
Mother
   means   
Vinegar Catalyst
Bio Yeast cells and bacteria added to wine or cider to produce vinegar
Myopia
   means   
Nearsightedness
Bio Images are focused in front of the retina rather than on it
Nacre
   means   
Internal Layer of Molluscs
Bio Pearls are formed in oysters when nacre forms around a foreign object in the shell
Neutralization
   means   
A Reaction in Which the Characteristics of an Acid or Base Disappear
Neutrons
   means   
Particles With Zero Charge Forming Part of an Atomic Nuclei
Noble Gases
   means   
Elements With Zero Valency
They form group 0 in the periodic table and are non-reactive.
Nucleus
   means   
That Part of an Atom Containing the Protons and Neutrons
Omnivore
   means   
Meat and Plant Eater
Bio Bears (excluding polar) and humans are omnivorous
Organic Compounds
   means   
Substances That Contain Carbon
Parasite
   means   
Organism That Lives off Another
Bio Lice are parasites
Phase Changes
   means   
Freezing or Boiling
Photons
   means   
Fundamental Quantum Particles.
It is the interaction of photons with other particles that drives the universe.
PH Scale
   means   
The Strength of Acids and Bases
Pure water has a pH value of 7, acids have a lower value and bases higher.
Positron
   means   
Positive Electron
Discovered in 1932 by Carl Anderson
Potential Difference
   means   
The Voltage Difference Between Two Points
Electricity flows from a high to low level of potential.
Potential Energy
   means   
Amount of Useable Energy Within a Body at Rest
Products
   means   
The Substances Produced in a Chemical Reaction
Protons
   means   
Positively Charged Particles Forming Part of Atomic Nuclei
Radical
   means   
Atoms Having at Least One Free Electron
Enables chemical bonds
Radioactivity
   means   
The Spontaneous Release of Energy from Atomic Nuclei
Reactants
   means   
The Substances That Take Part in a Chemical Reaction
Refraction
   means   
The Deflection of a Wave As It Passes from One Medium to Another
Relativity
   means   
The Relative Values of Time, Motion, Mass and Energy of a Body in Motion
Resistance
   means   
Opposition to Current Flow in a Conductor
Resonance
   means   
A State Where the Natural Frequency of a Body Equals an Applied Frequency
Respiration
   means   
The Production of Energy by the Oxidisation of Glucose
Scalar
   means   
A Quantity That is Defined by Its Magnitude Only
Energy and temperature.
Special Relativity
   means   
The Observable Effects on a Body in Motion
As velocity increases, time slows down, mass increases and lengths contract.
Strain
   means   
The Deformation of a Body Under an Applied Load
Stress
   means   
The Measure of the Force Acting on a Body
Theorem
   means   
A Provable Mathematical Concept
The proof may or may not have been found. "A mathematician is a machine for converting coffee into theorems"
Torque
   means   
The Tendency of a Body to Rotate Under an Applied Force
Uncertainty
   means   
It is Impossible to Know Exactly Where Something is and Where It is Going
Valency
   means   
A Measure of the Reactivity of an Element
Velocity
   means   
The Rate of Change of Distance With Respect to Time
Vertebrate
   means   
Having a Backbone
Bio True of only three percent off all species, namely, fish, reptiles, amphibians, birds and mammals
Viability
   means   
The Ability to Survive to Adulthood
Wave
   means   
A Disturbance Traversing a Medium
Such as water or sound waves
Weight
   means   
The Gravitational Force Exerted on a Mass


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