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Gr6 Physical Science
Physical Science Final Preparation
| Question | Answer |
|---|---|
| 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
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