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Chemistry
Term | Definition |
---|---|
Solid | Has a fixed volume and shape |
Liquid | Has a fixed volume but not a fixed shape |
Gas | Does not have a fixed volume or shape |
Dissolve | When a material mixes completely and appears as just one material. Dissolving substances together causes properties to change but no reaction to occur. |
Brittleness | Property that describes if a substance can be shaped or not |
Reflectivity | Describes how much light bounces off a material |
Hardness | How easily a material can be scratched or dented |
Color | Looking at color helps to see the differences in materials |
Solubility | Describes whether a substance can dissolve in another substance |
Electrical Conductivity | Describes how well a substance allows an electrical current to flow through it. Metal has high electrical conductivity. Plastic covers a power cord because it has low electrical conductivity. |
Thermal Conductivity | How well a substance allows heat to flow through it. Metal has a high thermal conductivity. |
Burning | When a new substance burns it changes into a new substance |
Bubbling | Substances change when they bubble. When two chemicals are poured into a beaker and a fountain of bubbles erupts from the beaker, gas is formed. |
Rusting | When something rusts it changes from a shapeable substance into a brittle orange substance. |