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5 Written questions

5 Matching questions

  1. Metalloids
  2. Indicator
  3. Alkaline Earth Metals
  4. Radioactive tracers
  5. Alkali metal
  1. a Silicon, boron and arsenic. Have properties similar to metals and nonmetals.
  2. b Used to detect cancer tumors.
  3. c Light and soft metals like calcium and magnesium.
  4. d A substance that changes color as pH of solution changes.
  5. e Element in the far left column of the periodic table.

5 Multiple choice questions

  1. Soft and extremely reactive like sodium, lithium and potassium.
  2. Simpler substances are formed.
  3. Substance made from carbon.
  4. Contain carbon and most of the time they contain hydrogen and oxygen too.
  5. Substance does not change chemically, like sugar water, cutting hair, making trail mix.

5 True/False questions

  1. StarchNatural substances or formed from two natural substances.


  2. Nuclear FusionSplitting nucleus into smaller pieces.


  3. Transition MetalsHard and shiny metals like copper, iron, gold, nickel and zinc.


  4. Chemical reaction examplesChange in color, formation of gas, heat.


  5. Replacement reactionProcess in which the products keep the process going.


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