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boiling point

boiling point . The BOILING POINT of pure water is 100 ° Celsius. . boiling point:   the temperature at which a substance changes from a liquid to a gas . conductor. Copper is a good CONDUCTOR of heat. Speaker wire CONDUCTS sound. Saltwater is a CONDUCTOR of electricity.

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boiling point

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  1. boiling point The BOILING POINT of pure water is 100° Celsius. boiling point:  the temperature at which a substance changes from a liquid to a gas 

  2. conductor Copper is a good CONDUCTOR of heat. Speaker wire CONDUCTS sound. Saltwater is a CONDUCTOR of electricity. conductor: a material that allows heat energy, electricity, or sound to pass through it easily

  3. density density blocks density of liquids density: the amount of mass in a known volume of an object or substance

  4. dissolve Particles of 1 or more substances are evenly distributed in another to form a solution. The antacid tablet is DISSOLVING in water. dissolve:  to form a solution with another substance

  5. electrical energy electrical energy: a form of energy that consists of a flow of electric charges through a conductor

  6. freezing point The FREEZING POINT of pure water is 0° Celsius. Water also begins to MELT at 0°. Metal melts and freezes at a much higher temperature. The FREEZING POINT of iron is 1535° Celsius! freezing point:  the temperature at which a substance changes from a liquid to a solid

  7. insulator Styrofoam is a good INSULATOR of heat energy. insulator: a material that does not let heat energy, electricity, or sound pass through it easily

  8. magnetism magnetism:  a force that pulls magnetic materials across a distance

  9. mass mass: the amount of matter in an object or substance

  10. matter MATTER can be classified into three states: solid, liquid, and gas. matter: the material, or "stuff," that everything is made of

  11. mixture This fruit salad is a MIXTURE of blueberries, raspberries, strawberries, cantaloupe, and honeydew melon. mixture:  a combination of two or more substances that can be separated by physical means

  12. physical property PHYSICAL PROPERTIES, or characteristics, of matter can be observed with your five senses. physical property: a property that can be observed, measured, or changed without changing the substance itself

  13. solubility These plant-based dyes are SOLUBLE in water. Copper Sulphatepowder is SOLUBLE in water. solubility:  a measure of how much of one substance will dissolve in another substance

  14. solution Lemonade is a SOLUTION made up of water, sugar, and lemon juice. Soda is a solution made up of water, sugar, flavorings, and gas. solution:  a mixture with one substance spread out evenly in another substance so that you cannot tell the two substances apart

  15. thermal energy Propane gas burners produce the THERMAL ENERGY that allows hot air balloons to rise. thermal energy: the amount of energy in moving particles of matter; heat

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