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Science 6th Blue
Term | Definition |
---|---|
Thermal Energy | The kinetic energy of the moving particles in a substance or an object. |
Solid | Firm and stable in shape; not liquid or fluid |
Liquid | Having a consistency like that of water or oil, i.e., flowing freely but of constant volume. |
Gas | An airlike fluid substance which expands freely to fill any space available, irrespective of its quantity. |
Plasma | A state of matter made up of charged atoms, uncharged atoms, and free electrons |
Colloid | A mixture that contains particles that are too small to see |
Phase Change | The states in which matter can exist: as a solid, liquid, or gas. When temperature changes, matter can undergo a phase change, shifting from one form to another. |
Particle | A minute portion of matter |
Melting Point | The temperature at which a substance changes from a solid to a liquid |
Freezing Point | The temperature at which a liquid turns into a solid when cooled. |
Boiling Point | The temperature at which a substance changes from a liquid to a gas |
Evaporation | The process by which a liquid changes into a gas |
Condensation | The process by which water vapor changes into liquid water |
Volume | The amount of space taking up something |
Mass | The amount of matter something has |
Density | The amount of mass something has in relation to its volume |
Pure Substance | A material that is composed of only one type of particle; examples of a pure substance include gold, oxygen and water. Mixture. A material made up of at least two different pure substances. Mechanical Mixture. A mixture in which each material maintains ow |
Atom | The basic unit of a chemical element. |
Molecule | A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. |
Element | A part or aspect of something abstract, especially one that is essential or characteristic. |
Compound | A thing that is composed of two or more separate elements; a mixture. |
Physical Change | A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. |
Chemical Change | Any process determined by the atomic and molecular composition and structure of the substances involved. |
Natural Resource | Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain. |
Synthetic Material | A compound made artificially by chemical reactions |