2nd ASSESSMENT REVIEW SHEET………1st QUARTER (2017-2018)

  • Know that the most important factor in changing matter (a substance) from one state to another is energy (heat).
  • Know that heat is energy and energy is heat.
  • Know the difference between physical and chemical properties. Wood burning into ashes in a chemical change…….metal that is rusting is a chemical change. Ice melting into water is a physical change and glass breaking is a physical change.
  • Know what density is, be able to explain it, and be able to calculate it using the formula d=m/v.
  • Know the difference between a solvent and a solute.
  • Know what a solution is and the definition of solubility.
  • Know the 3 ways that energy or heat is transferred….(conduction, convection, and radiation)…and examples of each. Know that heat always transfers from the warmer object or area to the cooler object or area.
  • Know what conductors and insulators are….their functions…..their properties….and examples of each.
  • Know the difference between heat and temperature….know the definition of each.
  • Know that water is the universal solvent.
  • Know the boiling and freezing points of water in both Fahrenheit and Celsius scales.
  • Know the following vocabulary:
  • property - a quality, trait, or characteristic of matter
  • melting point—the temperature at which a specified solid becomes a liquid
  • freezing point - the temperature at which a specified liquid becomes a solid
  • boiling point - the temperature at which a specified liquid becomes a gas
  • sublimation - the change of a solid directly to a gas without first melting
  • evaporation - the change of a liquid into a gas
  • chemical properties - describes how matter changes from one state of matter to another
  • physical properties - outwardly observable characteristics of matter
  • mass - the amount of matter in a specific amount of matter
  • weight – a measure of mass with the force of gravity acting on object
  • volume - the amount of space matter takes up
  • heat - the flow of energy from a warmer object to a cooler object; the energy generated by molecules speeding up
  • temperature - a measure of the average amount of kinetic energy of the molecules in an object
  • energy - the ability to do work or cause change
  • solubility – the amount of solute that can be dissolved in a specific volume of solvent under certain conditions
  • solute – the substance that is dissolved in a solution
  • solvent – the substance that dissolves another substance into a solution
  • dissolve – to make into a liquid; to liquefy
  • density - the amount of mass per unit of volume; density = mass/volume