Chemicalreactions occurwhen chemicalbonds break orwhen newbonds form.A material thatincreases the rateof a reaction bylowering theactivation energy.Thematerials youhave at thebeginning.The cells inyour bodycontainbiologicalcatalysts.A materialused todecrease therate of areaction.Fuel,oxygen,and heat.A reaction thatreleasesenergy in theform of heat.A shorter, easierway to showchemicalreactions,usingsymbols instead ofwords.A rapidreactionbetweenoxygen andfuel.When two or moresubstancescombine to makea more complexsubstance.A numberplaced in frontof a chemicalformula in anequation.One observablecharacteristic of achemical reaction is theproduction of newmaterials withproperties that aredifferent from those ofthe starting materials.Breaks downcompoundsinto simplerproducts.The reactionwhichabsorbsenergy.Show the ratioof the atomsof differentelements in aformula.When one elementreplaces another in acompound, or whentwo elements in adifferent compoundstrade places.Color change,production of a gas ora precipitate , achange intemperature, or achange in theproperties of asubstance.Whenchemicalsare mixedthis happens.A solid thatforms fromsolution duringa chemicalreactionSynthesis,decompostion,andreplacement.Fuel,oxygen,and heat.The amount ofone material ina given amountof anothermaterial.The minimumamount ofenergy neededto start achemicalreaction.A material thatreleasesenergy when itburns.Chemicalreactions occurwhen chemicalbonds break orwhen newbonds form.A material thatincreases the rateof a reaction bylowering theactivation energy.Thematerials youhave at thebeginning.The cells inyour bodycontainbiologicalcatalysts.A materialused todecrease therate of areaction.Fuel,oxygen,and heat.A reaction thatreleasesenergy in theform of heat.A shorter, easierway to showchemicalreactions,usingsymbols instead ofwords.A rapidreactionbetweenoxygen andfuel.When two or moresubstancescombine to makea more complexsubstance.A numberplaced in frontof a chemicalformula in anequation.One observablecharacteristic of achemical reaction is theproduction of newmaterials withproperties that aredifferent from those ofthe starting materials.Breaks downcompoundsinto simplerproducts.The reactionwhichabsorbsenergy.Show the ratioof the atomsof differentelements in aformula.When one elementreplaces another in acompound, or whentwo elements in adifferent compoundstrade places.Color change,production of a gas ora precipitate , achange intemperature, or achange in theproperties of asubstance.Whenchemicalsare mixedthis happens.A solid thatforms fromsolution duringa chemicalreactionSynthesis,decompostion,andreplacement.Fuel,oxygen,and heat.The amount ofone material ina given amountof anothermaterial.The minimumamount ofenergy neededto start achemicalreaction.A material thatreleasesenergy when itburns.

Chapter Five Vocab - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. Chemical reactions occur when chemical bonds break or when new bonds form.
  2. A material that increases the rate of a reaction by lowering the activation energy.
  3. The materials you have at the beginning.
  4. The cells in your body contain biological catalysts.
  5. A material used to decrease the rate of a reaction.
  6. Fuel, oxygen, and heat.
  7. A reaction that releases energy in the form of heat.
  8. A shorter, easier way to show chemical reactions,using symbols instead of words.
  9. A rapid reaction between oxygen and fuel.
  10. When two or more substances combine to make a more complex substance.
  11. A number placed in front of a chemical formula in an equation.
  12. One observable characteristic of a chemical reaction is the production of new materials with properties that are different from those of the starting materials.
  13. Breaks down compounds into simpler products.
  14. The reaction which absorbs energy.
  15. Show the ratio of the atoms of different elements in a formula.
  16. When one element replaces another in a compound, or when two elements in a different compounds trade places.
  17. Color change, production of a gas or a precipitate , a change in temperature, or a change in the properties of a substance.
  18. When chemicals are mixed this happens.
  19. A solid that forms from solution during a chemical reaction
  20. Synthesis, decompostion, and replacement.
  21. Fuel, oxygen, and heat.
  22. The amount of one material in a given amount of another material.
  23. The minimum amount of energy needed to start a chemical reaction.
  24. A material that releases energy when it burns.