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Gr6 Physical Science

Physical Science Final Preparation

Physical Science A study of Chemistry and Physics together.
Chemistry A study of matter and the changes matter undergoes.
Physics A study of energy and matter and how they interact.
Matter Anything that has mass and occupies space.
Mass A measure of the amount of matter in an object, uses the unit of grams.
Volume Describes how much space a sample of matter takes up.
Weight Weight is the force of gravity between Earth and the book.
Density Density of an object tells us how massive something is for its size.
Conduct To allow energy to flow through them easily.
Insulate To go against the passage of energy, they do not readily permit energy to flow.
Element Substances that are the basic building blocks of all matter.
Compound The chemical combination of two or more elements.
Atom A tiny particle that makes up matter.
Proton Particles that carry one unit of positive charge.
Neutron Particles that have no electric charge.
Electron Particles that carry one unit of negative charge.
Nucleus A tiny, very dense body in the atom's center.
Molecule Particles that contain more than one atom joined together.
Solid State of matter with a definite shape and volume.
Liquid State of matter with a definite volume but no definite shape.
Gas State of matter that has no definite shape or volume.
Plasma State of matter made up of electrically charged particles,like stars.
Melting Point The temperature at which the substance melts.
Boiling Point The temperature at which the substance boils.
Condensation Substance turns from a gas to a liquid.
Freezing Point The temperature at which the substance freezes.
Joule A unit to measure energy.
Biomass A renewable form of energy made from burning wood.
Fossil Fuel Oil, natural gas, and coal are nonrenewable sources of energy made from plants and animals that died millions of years ago.
Nonrenewable Resource A resource used to make energy that has a limited supply.
Renewable Resource A resource, like water or solar energy, that can be replenished in a short time.
Evaporation Matter that changes from a liquid to a gas at the surface of the liquid.
Radiation Transfer of energy through space; Sun, Heat from a fire, Electric Heater.
Electrical Energy When chemicals react together to produce electrons which flow. An example is energy flowing from a battery to make a light bulb flow.
Mechanical Energy The energy in moving things. This type of energy can occur as potential or kinetic energy or both. (Stored/Potential-Winding spring on a toy car. Kinetic/Movement-Toy car moves)
Electromagnetic Energy The form of energy that can travel through a vacuum. An example is visible light, x-rays, radio waves, etc.
Heat or Thermal Energy The energy of moving particles that make up matter, like, rubbing your hands together quickly produces heat energy in the form of friction.
Chemical Energy The energy that holds particles of matter together. An example is the energy stored in the head of a match or fuels like wood.
Nuclear Energy The energy stored in the nucleus of an atom; normally, this keeps energy in the protons and neutrons bound together, however, if bonds are broken, energy is released. A Nuclear Power Plant is an example.
Conduction The process of heat transfer in solids, like heat moving through an iron skillet on a stove.
Conductor Material that conducts heat easily, like metal (copper) or (silver).
Insulator Material that does not allow heat to flow through easily, actually prevents the flow of electrons or slows down the process. An example is an oven mitt.
Convection The transfer of heat in gases and liquids. An example is heat transfer from hot cocoa in a cup to the coffee mug.
Convection Current The movement of gases or liquid caused by the differences in density. For example, the rising of warm air and sinking of cool air.
Vacuum A region where no matter exists; for example, space.
Radiation The transfer of energy through space. Example of this form of heat transfer is the heat felt from the Sun.
Calorie A unit used to measure heat.
Absolute zero -273 degrees Celsius
Energy The ability to make something happen; the two types are potential energy and kinetic energy.
Potential Energy Stored energy; like the energy of the water in the lake behind a dam.
Kinetic Energy The energy of motion; anything that is moving is considered to have this type of energy.
Law of Conservation of Energy Energy cannot be made or destroyed, but only change in form.
Force A push or pull on an object.
Gravity Cruiser A toy that uses the force of gravity for energy.
Friction Rubbing between two surfaces that causes energy loss.
Created by: salleyj